Bonded MoCA LDPC Transmission for Multi-Channel Coordination
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Solution Overview
Problem
Coordinating hardware for parallel communications over multiple channels in home entertainment networks, such as those following the MoCA standard, is cumbersome and complex due to the need for independent calculation of LDPC forward error correction code parameters and padding bits by both transmitter and receiver nodes.
Innovation Solution
A method and apparatus for 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 padding to facilitate efficient scheduling and reassembly across interconnected MoCA 2.0 SoCs, enabling coordinated transmission over multiple channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If parallel communication over multiple channels is implemented to increase data transmission capacity, then the amount of information transmitted per unit time is improved, but the coordination complexity between channels worsens
Solution Approach 1:
The patent segments the data transmission process into distinct phases: reservation request transmission, grant reception, and actual data transmission. Each channel is independently managed through these segmented phases, allowing parallel operation while maintaining coordination through structured timing and protocol separation.
Solution Approach 2:
The patent implements preliminary action by requiring reservation requests to be transmitted before actual data transmission. The network controller processes these requests in advance, grants channel access rights beforehand, and establishes transmission parameters prior to data flow, thereby simplifying real-time coordination during parallel transmission.
2Reliability
If independent LDPC parameter calculation is performed by both transmitter and receiver nodes to ensure error correction, then transmission reliability is improved, but the computational complexity and coordination overhead worsen
Solution Approach 1:
The patent applies universality by implementing identical LDPC parameter calculation algorithms in both transmitter and receiver nodes. Both nodes independently perform the same computational operations using the same code rate and block length parameters, ensuring reliability through consistent error correction while avoiding complex coordination through algorithmic symmetry.
Solution Approach 2:
The patent enables self-service by allowing each node to independently calculate LDPC parameters without requiring real-time communication or coordination with the other node. Each node autonomously determines the appropriate code rate, block length, and padding requirements based on the transmitted data size, eliminating coordination overhead while maintaining reliability.
3Productivity
If data is divided into segments for transmission over primary and secondary channels, then efficient utilization of bonded channels is improved, but the complexity of data segmentation and reassembly worsens
Solution Approach 1:
The patent segments data for transmission over bonded channels by dividing the total data into portions suitable for primary and secondary channels. Each segment is independently encoded with appropriate LDPC parameters, transmitted over its designated channel, and then reassembled at the receiver, thereby improving channel utilization while managing segmentation complexity through systematic processing.
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.