Physical Layer Pipe Signaling for Digital Broadcast Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Digital broadcast networks face inefficiencies in transmitting data over multiple physical layer pipes due to inconsistencies in setting parameter values across different protocol layers, leading to suboptimal transmission resource utilization and robustness configurations.
Innovation Solution
Signaling all parameters applicable to a physical layer pipe is performed only as part of layer 1 signaling, rather than on a per-baseband frame basis, allowing for independent robustness settings and reducing redundant information transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If parameters are signaled on a per-baseband frame basis, then each frame can have independent parameter settings, but signaling overhead increases and parameter inconsistencies may occur across protocol layers
Solution Approach 1:
The patent extracts parameter signaling from the baseband frame level and moves it to the physical layer pipe level. By taking out the redundant per-frame parameter signaling and consolidating it at the higher-level physical layer pipe configuration, the invention reduces signaling overhead while maintaining parameter configuration flexibility through the PLP-level signaling mechanism.
Solution Approach 2:
The patent merges parameter signaling for multiple baseband frames into a single physical layer pipe-level signaling event. By combining the parameter configuration across multiple frames at the PLP level, the invention eliminates redundant signaling while ensuring consistent parameter application across all frames within the physical layer pipe.
2Adaptability or versatility
If parameters are signaled on a per-baseband frame basis, then parameter settings can be adjusted per frame, but inconsistencies in parameter values across different protocol layers occur
Solution Approach 1:
The patent changes the dimension of parameter signaling from the frame level to the physical layer pipe level, which is a higher hierarchical dimension. By signaling parameters at this elevated dimension, the invention ensures that all baseband frames within a physical layer pipe receive consistent parameter settings, eliminating cross-layer inconsistencies while preserving adaptability through PLP-level configuration.
Solution Approach 2:
The patent performs parameter configuration in advance at the physical layer pipe level before baseband frame transmission. By preliminarily setting parameters at the PLP level, the invention ensures that all subsequent baseband frames inherit consistent parameter values, preventing inconsistencies from occurring during frame-by-frame transmission.
3Ease of operation
If redundant parameter information is transmitted in each baseband frame header, then each frame is self-contained, but transmission efficiency decreases
Solution Approach 1:
The patent makes the physical layer pipe-level parameter signaling serve multiple baseband frames simultaneously. By establishing a universal parameter configuration at the PLP level that applies to all frames within the pipe, the invention eliminates the need for each frame to carry redundant parameter information, thereby improving transmission efficiency while maintaining operational clarity.
Data Source
AI summary
The present invention relates to transmission and reception of digital broadcast in a digital broadcast network supporting a configuration of multiple physical layer pipes (PLPs). In particular, signalling parameters relating to a complete PLP are transmitted within layer 1 signalling related to the PLP. The baseband frames mapped on the pipe are configured according to this layer 1 signalling in the same way at the transmitter as they are demapped on the receiver side. The baseband frames are transmitted and received without including these parameters, in particular, at least one of parameters indicating (i) an input stream format, (ii) a single or a multiple input stream, (iii) constant or adaptive coding and modulation, (iv) presence of input stream synchronization, (v) presence of null packet deletion, or (vi) input stream identifier.