Baseband Packet Header Mapping for Multi-Stream Broadcast Frames
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Solution Overview
Problem
Current broadcast communication systems face challenges in providing high-quality, multi-channel, broadband digital services due to limitations in data transmission and processing efficiency, particularly in handling various types of digital broadcast data streams.
Innovation Solution
A transmitting apparatus and method that generates frames with baseband packets including headers and payload data, allowing for signal processing and transmission of both transport streams and internet or signaling packets, with headers containing information about the payload type and packet numbers, enabling efficient mapping of data to signal processing paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of data streams (transport stream, IP packet, signaling packet) are transmitted through a single broadcast communication system, then the versatility and service quality are improved, but the system complexity and difficulty of processing increase
Solution Approach 1:
The patent segments different types of data streams (transport stream, IP packet, signaling packet) into separate processing paths within the transmitting and receiving apparatus. Each path is dedicated to handling specific packet types, which simplifies the overall system architecture while maintaining the ability to transmit multiple data types simultaneously. This segmentation resolves the contradiction by organizing complexity into manageable, specialized modules rather than requiring a single complex processing unit to handle all data types.
Solution Approach 2:
The transmitting and receiving apparatus are designed with universal structures that can handle multiple types of data streams through a unified framework. The baseband packet generator and frame generator create standardized structures that accommodate different packet types, while the signal processing paths are configured to universally process various data formats. This multi-functionality approach allows the system to transmit diverse data types without proportionally increasing complexity, as the same structural framework serves multiple purposes.
2Measurement precision
If detailed header information (payload type, packet number, null packet removal status) is included in the baseband packet, then the accuracy of signal processing and data recovery is improved, but the overhead and bandwidth consumption increase
Solution Approach 1:
The patent applies local quality by providing detailed header information only where necessary for accurate processing. The baseband packet header includes payload type identification and packet number information specifically when needed for distinguishing between different packet types (transport stream, IP packet, signaling packet). Null packet removal status is indicated only when applicable to the specific packet structure. This selective inclusion of detailed information maintains processing accuracy while minimizing unnecessary overhead.
Solution Approach 2:
The header structure implements partial action by including only the essential information needed for correct signal processing and data recovery. Rather than providing exhaustive metadata for every possible scenario, the header contains the minimum necessary fields (payload type, packet number, selective null packet indicators) to enable accurate reconstruction of the original data stream. This approach achieves sufficient precision for practical purposes without the excessive overhead of comprehensive documentation.
Data Source
AI summary
A transmitting apparatus, a receiving apparatus and methods of controlling these apparatuses are provided. The transmitting apparatus includes: a baseband packet generator configured to, based on an input stream including a first type stream and a second type stream, generate a baseband packet including a header and payload data corresponding to the first type stream; a frame generator configured to generate a frame including the baseband packet; a signal processor configured to perform signal-processing on the generated frame; and a transmitter configured to transmit the signal-processed frame, wherein the header includes a type of the payload data in the baseband packet and the number of the first type stream packets in the baseband packet.