Bonded MoCA LDPC Transmission With Precomputed FEC Coordination
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Solution Overview
Problem
Coordinating hardware to transmit information over multiple channels in parallel is cumbersome and complex in communications systems, particularly in home entertainment networks like those operating under the MoCA standard, due to the need for independent calculation of LDPC forward error correction code parameters and padding bits by both transmitter and receiver.
Innovation Solution
A method and apparatus for low-density parity check (LDPC) transmission over a bonded channel system, where data is divided into segments for the primary and secondary channels, with calculations for reservation request parameters and FEC parameters optimized for efficient transmission across two interconnected MoCA 2.0 SoCs, allowing for easier coordination and scheduling of transmission slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If parallel transmission over multiple channels is implemented, then information transmission capacity increases, but coordination complexity between channels increases
Solution Approach 1:
The patent segments the transmitted information into multiple packets that can be distributed across different bonded channels. Each packet is independently manageable, allowing parallel transmission while reducing the coordination burden by breaking down the complex transmission task into smaller, manageable units that can be handled separately by each channel.
2Reliability
If independent LDPC parameter calculation is performed by both transmitter and receiver, then error correction reliability improves, but hardware coordination difficulty increases
Solution Approach 1:
The patent performs preliminary calculation of LDPC parameters at the transmitter side before transmission. The calculated parameters are then embedded in the transmitted packets, so the receiver can directly use these pre-calculated parameters without performing independent calculations. This preliminary action maintains error correction reliability while significantly simplifying receiver hardware coordination.
Solution Approach 2:
The transmitted packets serve as an intermediary that carries the LDPC parameters from the transmitter to the receiver. Instead of requiring both ends to independently calculate and coordinate parameters, the parameters are packaged within the data stream itself, acting as a mediator that conveys the necessary correction information along with the data.
3Productivity
If data is divided into segments for bonded channels, then transmission efficiency improves, but parameter calculation complexity increases
Solution Approach 1:
The patent divides the original data stream into multiple segments that can be transmitted over different bonded channels in parallel. This segmentation improves transmission efficiency by utilizing multiple channels simultaneously while managing parameter calculations on a per-segment basis, which is more efficient than calculating parameters for the entire data stream at once.
Solution Approach 2:
The patent applies different LDPC parameters locally to different data segments based on their specific characteristics and the channel conditions they will traverse. This local optimization allows each segment to be efficiently corrected for its specific channel conditions without requiring complex global parameter calculations, thus improving transmission efficiency while managing calculation complexity.
Data Source
AI summary
A particular overall architecture for transmission over a bonded channel system consisting of two interconnected MoCA (Multimedia over Coax Alliance) 2.0 SoCs (Systems on a Chip) and a method and apparatus for the case of a “bonded” channel network. With a bonded channel network, the data is divided into two segments, the first of which is transported over a primary channel and the second of which is transported over a secondary channel.