L1 Signaling Segmentation for DVB-NGH Integration
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Solution Overview
Problem
DVB-T2 systems face limitations in signaling NGH PLP parameters due to insufficient reserved bits in T2 L1-pre signaling, which hinders efficient integration and compatibility with DVB-NGH systems.
Innovation Solution
The implementation of PLP integration and FEF integration methods, where NGH signaling is transmitted within T2 frames or future extension frames, respectively, to provide additional signaling information and ensure backwards compatibility between DVB-NGH and DVB-T2 systems, using reserved bits to indicate the presence and parameters of NGH PLPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If DVB-T2 systems use traditional L1-pre signaling format, then backwards compatibility is maintained, but insufficient reserved bits prevent efficient integration of NGH PLP parameters
Solution Approach 1:
The L1 signaling is divided into two parts: L1-pre signaling (fixed format for backwards compatibility) and L1-post signaling (flexible format for NGH parameters). This segmentation allows the traditional format to remain unchanged while adding new functionality through the post signaling portion, resolving the contradiction between maintaining compatibility and increasing adaptability.
Solution Approach 2:
The patent introduces a new dimension to the signaling structure by adding L1-post signaling after the traditional L1-pre signaling. This extends the signaling capacity from a single fixed format to a two-part structure, enabling NGH PLP parameter integration without modifying the original DVB-T2 format.
2Adaptability or versatility
If additional signaling bits are added to T2 L1-pre signaling, then NGH PLP parameter integration is enabled, but system complexity and decoding steps increase
Solution Approach 1:
By segmenting the signaling into pre and post portions, the patent avoids increasing the complexity of the traditional L1-pre signaling while adding necessary NGH parameters through the L1-post signaling. This separation means receivers can process traditional signals without the added complexity, only engaging L1-post when needed.
Solution Approach 2:
The L1-pre signaling provides preliminary information about the transmission structure, allowing receivers to prepare for decoding. The L1-post signaling then provides additional NGH-specific parameters only when needed, avoiding the complexity of always processing extended signaling formats.
3Measurement precision
If NGH signaling is transmitted separately from T2 frames, then signaling accuracy is maintained, but transmission efficiency and compatibility are reduced
Solution Approach 1:
The patent merges NGH signaling with T2 frames by incorporating L1-post signaling into the same transmission structure. This combination allows NGH parameters to be transmitted alongside traditional DVB-T2 data, improving transmission efficiency and compatibility while maintaining signaling accuracy through structured separation of pre and post signaling portions.
Data Source
AI summary
Embodiments may include apparatuses, computer media, and methods for receiving at least one data symbol for transmission in a data frame, generating signaling information that identifies transmission parameters for the data frame, wherein the signaling information includes a first signaling portion and a second signaling portion, wherein the second signaling portion includes at least a third signaling portion and a fourth signaling portion, generating at least one first size information for the third signaling portion, generating at least one second size information for the fourth signaling portion, adding the at least one first size information and the at least second size information to the first signaling portion, and assembling, by at least one processor, the data frame comprising at least the first signaling portion, the second signaling portion, and the at least one data symbol.