Baseband Packet Header Structure for Digital Broadcasting Efficiency
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Solution Overview
Problem
Digital broadcasting services face challenges in efficiently transmitting multimedia data while providing necessary information, requiring improved processing efficiency and optimal header information constitution for highest performance.
Innovation Solution
A transmitting apparatus and receiving apparatus are designed with a baseband packet generator, frame generator, signal processor, and transmitter/receiver, which include headers containing information about payload data type, additional headers, and length, enabling efficient data processing and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If comprehensive header information is included to provide all necessary data transmission details, then data transmission accuracy is improved, but header size and processing complexity increase
Solution Approach 1:
The header is segmented into multiple functional fields including payload type identification, length specification (with LSB/MSB separation), additional header presence indication, and processing information. This segmentation allows the receiver to process only the necessary fields based on the actual data type, improving accuracy while managing complexity through modular field design.
Solution Approach 2:
The header contains pre-configured information about payload type, length, and processing requirements that are determined before transmission. This preliminary encoding of transmission parameters allows the receiving apparatus to efficiently process the data without requiring complex real-time analysis, thus improving accuracy while controlling processing complexity.
2Adaptability or versatility
If variable header structures are used to adapt to different data types, then adaptability is improved, but processing time and complexity increase
Solution Approach 1:
The header structure is designed to be dynamic and adaptable through the inclusion of a mode field that indicates whether additional headers are present. The header can be configured in different formats (with or without additional headers, with different payload types) based on the data being transmitted. This dynamic structure allows the system to adapt to various data types while maintaining efficient processing through standardized field positions and clear indication mechanisms.
3Measurement precision
If detailed length information is provided using multiple fields (LSB, MSB), then payload data length precision is improved, but header size increases
Solution Approach 1:
The length information is divided into local components: LSB (Least Significant Bit) and MSB (Most Significant Bit) fields. Each field contains a specific portion of the length information, allowing the system to precisely represent payload lengths while organizing the data in a structured manner. This local quality approach enables accurate length specification without requiring a single large field, thus managing header size through distributed information storage.
Data Source
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AI summary
A transmitting apparatus is provided. The transmitting apparatus includes: a baseband packet (BBP) generator configured to generate a BBP including a header and payload data; a frame generator configured to generate a frame including the BBP; a signal processor configured to signal-process the generated frame; and a transmitter configured to transmit the signal-processed frame. The header includes information about a type of the payload data, whether an additional header exists, a length of the payload data, and a Least Significant Bit (LSB) of the length of the payload data. Therefore, various types of data are mapped on a physical layer based on information included in the header, and data processing efficiency is improved.