Broadcast Reception Apparatus Interface Reduction via Packet Identification
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Solution Overview
Problem
The existing reception apparatuses for broadcast signals with IP transmission methods require multiple interfaces between the demodulation device and the System on Chip (SoC), increasing costs and complicating the implementation of circuits on the receiving side, particularly when handling multiple Physical Layer Pipes (PLPs).
Innovation Solution
A reception apparatus with a demodulation section that demodulates packets from multiple PLPs and a processing section connected via a single interface, where the demodulation section adds identification information to specific packets to identify their respective PLPs, allowing the processing section to differentiate between them efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple interfaces are provided between demodulation device and SoC to handle multiple PLPs, then the ability to process multiple PLPs is improved, but the device complexity and cost increase
Solution Approach 1:
The patent merges multiple PLP data streams into a single interface between the demodulation device and SoC. Instead of providing separate interfaces for each PLP, the system combines all PLP data transmission through one unified interface, thereby reducing device complexity and cost while maintaining the ability to process multiple PLPs.
Solution Approach 2:
The single interface is designed to handle multiple functions by transmitting data from multiple different PLPs through the same communication channel. The interface is made universal to accommodate various PLP data streams, eliminating the need for dedicated interfaces for each PLP and thus reducing overall system complexity.
2Productivity
If multiple interfaces are provided between demodulation device and SoC, then the data transmission capability for multiple PLPs is improved, but the ease of manufacture deteriorates
Solution Approach 1:
By combining multiple data transmission functions into a single interface, the patent simplifies the manufacturing process. Instead of manufacturing and testing multiple separate interfaces, the system requires only one interface, significantly improving ease of manufacture and implementation while maintaining full data transmission capability for multiple PLPs.
3Measurement precision
If identification information is added to packets, then the ability to identify PLP is improved, but the loss of information increases due to additional data
Solution Approach 1:
The patent extracts the PLP identification function from separate physical interfaces and embeds it within the data packets themselves through identification information fields. This allows the system to identify which PLP a packet belongs to without requiring additional separate identification channels, thereby minimizing information overhead while maintaining precise PLP identification capability.
Data Source
AI summary
A reception apparatus includes a demodulation circuit configured to demodulate packets obtained with respect to each of multiple PLPs included in a broadcast signal; and a processing circuit configured to process the packets demodulated by the demodulation circuit. The demodulation circuit and the processing circuit are connected with each other via a single interface or interfaces fewer than the number of the PLPs. The demodulation circuit adds identification information to a specific packet among the packets obtained with respect to each of the PLP, the identification information identifying the PLP to which each of the packets belongs. The processing circuit identifies the PLP to which belongs each of the packets input from the demodulation circuit via the single interface or the interfaces fewer than the number of the PLPs, based on the identification information obtained from the specific packet.