Dual-Chip MoCA Modem Link Aggregation for 5 Gbps Coax Access
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Solution Overview
Problem
Existing data communication over coaxial cable networks, such as those using MoCA technology, face limitations in throughput capability, restricting data rates for various services and use cases.
Innovation Solution
Implementing a modem and network management device with dual MoCA chips and a link aggregation switch to establish separate MoCA access links at different frequency bands, enabling simultaneous operation of two 2.5 Gbps links for a combined 5 Gbps data rate over coaxial networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single MoCA access link is used, then device complexity is reduced, but data rate is limited to 2.5 Gbps
Solution Approach 1:
The system segments the data communication function into multiple independent MoCA access links operating at different frequency bands. Each link is handled by a separate MoCA chip, allowing parallel data transmission and achieving aggregated data rates of 5 Gbps or higher while maintaining individual link simplicity
Solution Approach 2:
The patent introduces frequency band dimensionality by operating multiple MoCA access links at different frequency bands simultaneously. This dimensional expansion allows parallel data transmission without interfering with each other, effectively multiplying the data rate capability
2Productivity
If multiple MoCA access links are aggregated, then throughput capability is enhanced, but traffic rejection issues occur
Solution Approach 1:
A link aggregation switch is introduced as an intermediary device to manage multiple MoCA access links. The switch properly aggregates traffic from multiple 2.5 Gbps links, ensuring reliable data transmission and preventing traffic rejection by coordinating the combined bandwidth resources
Solution Approach 2:
The patent merges multiple MoCA access links at the data link layer through link aggregation, combining their individual 2.5 Gbps capabilities into a unified high-throughput channel of 5 Gbps or more, while maintaining reliable traffic flow management
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances data communication throughput by allowing up to 5 Gbps data transmission, overcoming traffic rejection issues and improving bandwidth utilization in MoCA access networks.
Implementation Method 1
a combiner having a coaxial interface for connection to a coaxial cable network and at least two frequency-separated southbound interfaces, SBIs
Implementation Method 2
the MoCA chips are configured to operate separate MoCA access links at different MoCA access frequency bands over the coaxial cable network
Data Source
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AI summary
A modem (M1) configured to operate in a Multimedia over Coax Alliance, MoCA, access network, wherein the modem comprises: a combiner (58) having a coaxial interface for connection to a coaxial cable network and at least two frequency-separated southbound interfaces, SBIs; at least two MoCA chips (54, 55), wherein each MoCA chip is configured to operate a MoCA access link and comprises a MoCA northbound interface, NBI, connected to one each of said SBIs of the combiner, and a data SBI; a link aggregation switch (57) having at least two switchports connected to one each of the data SBIs, and a port to a data communication interface (59) for connection to a client device for communication at a client data rate; wherein the MoCA chips are configured to operate separate MoCA access links at different MoCA access frequency bands over the coaxial cable network.