Wireless Stream Control Signaling With Versioned Tree Structures
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Solution Overview
Problem
Traditional communication systems lack flexibility and extensibility in signaling and versioning, making it difficult to support unforeseen changes and new technology innovations, especially in bandwidth-constrained environments like digital television broadcasting.
Innovation Solution
A system and method for generating and receiving control information using a tree-based data structure and an extensible control language (XCL), which allows for dynamic configuration of audiovisual devices to present multimedia streams, and supports forward and backward compatibility by versioning individual nodes and leaves in the tree structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional communication systems use predefined data formats with limited flexibility, then system complexity is reduced and ease of manufacture is improved, but adaptability and extensibility deteriorate, making it difficult to support unforeseen changes and new technology innovations
Solution Approach 1:
The patent segments control information into hierarchical groups and fields, where each group can be independently versioned and configured. This allows the system to add new features in specific segments without affecting the entire system, thereby improving adaptability while managing complexity through modular organization
Solution Approach 2:
The patent implements dynamic configuration capabilities where control information formats can be changed and extended during system operation. The system supports runtime reconfiguration of data streams and control parameters, enabling adaptability to new technologies without requiring complete system redesign
2Adaptability or versatility
If text-based formats like XML are used to support human readability and extensibility, then adaptability is improved, but bandwidth efficiency deteriorates due to excessive overhead
Solution Approach 1:
The patent changes the parameter representation from text-based to compact binary formats. Control information is encoded using efficient bit representations where parameters are specified with minimal bits, and optional fields are used only when needed, thereby maintaining extensibility while dramatically improving bandwidth efficiency
Solution Approach 2:
The patent extracts only the essential control information needed for system operation, removing unnecessary text overhead. By taking out only the critical parameters and using compact encoding, the system achieves both extensibility and bandwidth efficiency
3Adaptability or versatility
If control information formats are made flexible and extensible to support future changes, then forward compatibility is improved, but device complexity and processing requirements increase
Solution Approach 1:
The patent implements preliminary versioning and configuration where control information structures are pre-defined with version identifiers and optional fields. This allows devices to prepare for future changes in advance by recognizing version markers and selectively processing only the control information relevant to their capabilities, thereby maintaining forward compatibility without excessive processing complexity
Data Source
AI summary
Control information for configuring an audiovisual device to present multimedia content according to a first service type may be generated. A method may include generating first control information for configuring an audiovisual device to decode a multimedia stream, generating first data that indicates a structure of the first control information, and transmitting the first data and the first control information. The first control information may be generated according to a first protocol version. Second data and second control information may be similarly generated and transmitted according to a second protocol version. Disclosed techniques may facilitate receiving devices to determine whether they support received wireless transmissions and decode the transmissions based on the control information.