Baseband Packet Signaling for Multi-Layer Content Identification
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Solution Overview
Problem
Current broadcast communication systems, such as DVB-T2, face challenges in identifying and processing multi-layer content at the physical layer, leading to unnecessary data decoding and inefficient resource utilization.
Innovation Solution
A transmitting apparatus and method that includes a baseband packet generator, baseband frame generator, signal processor, and transmitter, which embed signaling information indicating the presence and characteristics of base layer and enhancement layer data, allowing for efficient identification and processing of desired content in the physical layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-layer content is transmitted as a single stream in the upper layer without physical layer identification, then compatibility between devices is secured, but the physical layer decodes unnecessary data leading to inefficient resource utilization
Solution Approach 1:
The patent segments the content identification process by introducing layer identification information at the physical layer level. This allows the physical layer to distinguish between base layer and enhancement layer data independently, enabling selective decoding without requiring upper layer processing, thus resolving the contradiction between universal compatibility and efficient resource utilization
Solution Approach 2:
The patent applies preliminary action by embedding layer identification information in the physical layer before transmission. This allows receiving devices to identify and filter desired content layers in advance at the physical layer, avoiding unnecessary decoding operations and improving resource efficiency while maintaining compatibility
2Loss of information
If the physical layer decodes all transmitted data without identification capability, then all content is available for upper layer processing, but unnecessary data is processed consuming excessive computational resources
Solution Approach 1:
The patent extracts layer identification information from the transmitted data stream and places it at the physical layer. This enables receiving devices to extract and identify only the desired content layers (base or enhancement) before decoding, avoiding the processing of unnecessary data while ensuring that required information is fully available
Solution Approach 2:
The patent applies partial action by enabling devices to decode only the necessary portion of the multi-layer content (either base layer or enhancement layer based on device capability) rather than all layers. This reduces computational resource consumption while maintaining complete availability of required content through the identification mechanism
3Productivity
If signaling information is added to identify multi-layer content at the physical layer, then selective decoding is enabled improving efficiency, but the system complexity increases
Solution Approach 1:
The patent applies universality by designing a signaling information structure that serves multiple functions: it identifies layer type (base or enhancement), indicates layer presence, and enables device capability matching. This multi-functional approach improves content processing efficiency without proportionally increasing system complexity
Solution Approach 2:
The patent changes the parameter structure by introducing specific signaling information fields that encode layer identification data. These parameter changes enable efficient selective decoding through standardized information elements, improving processing efficiency while managing complexity through structured parameter design
Data Source
AI summary
Provided are a transmitting apparatus, a receiving apparatus and methods of controlling the transmission and reception. The transmitting apparatus includes: a baseband packet generator configured to, in response to input of data, generate a baseband packet for mapping the data with a physical layer; a baseband frame generator configured to generate a baseband frame including the baseband packet; a signal processor configured to signal-process the baseband frame; and a transmitter configured to transmit the baseband frame after the signal processing, wherein the baseband packet includes signaling information which indicates that the data comprises at least one of base layer data and enhancement layer data.