Overlapping Return Link Channels for Real-Time Capacity Allocation
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Solution Overview
Problem
Existing communications systems face challenges in efficiently managing return link channels due to the time-consuming process of reconfiguring channel groups (RCGs) in response to changing conditions or demands, leading to inefficiencies and decreased capacity.
Innovation Solution
Implementing a return channel group (RCG) that includes overlapping return link channels, allowing for real-time adaptation to changing conditions and demands by utilizing all possible channels, and a scheduler that intelligently assigns non-overlapping time-frequency allocations to user terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional non-overlapping return link channels are used, then channel assignment is simple and avoids interference, but return link capacity is limited and cannot adapt to varying terminal capabilities
Solution Approach 1:
The return link channel is segmented into multiple overlapping frequency bands, each capable of being independently assigned to different terminals. This segmentation allows the system to provide adaptability by selecting appropriate channel segments based on terminal capabilities while managing complexity through structured organization of the segmented channels.
Solution Approach 2:
The channel configuration is made dynamic by allowing frequency bands to overlap and be reassigned based on real-time terminal capabilities and traffic demands. The scheduler dynamically selects from multiple overlapping channel options, enabling adaptability to varying conditions while the structured overlay management keeps complexity可控.
2Adaptability or versatility
If return channel groups are reconfigured in response to changing conditions, then system adaptability improves, but the reconfiguration process is time-consuming and reduces efficiency
Solution Approach 1:
Multiple overlapping return link channels are pre-configured and made available in the channel group before runtime. When terminals have varying capabilities or conditions change, the scheduler can immediately assign from the pre-configured overlapping channels without time-consuming reconfiguration, thus achieving real-time adaptability while maintaining system efficiency.
Solution Approach 2:
The system changes the parameter of channel frequency allocation by introducing overlapping frequency bands with different characteristics. This allows the scheduler to select appropriate channels based on terminal capabilities and conditions without reconfiguring the entire channel group, enabling rapid adaptation while preserving efficiency.
3Productivity
If overlapping frequency bands are assigned to multiple terminals simultaneously, then return link capacity increases, but interference between channels occurs
Solution Approach 1:
The overlapping frequency spectrum is segmented into multiple distinct return link channels that can be simultaneously assigned to different terminals. By properly segmenting and managing these channels, the system increases return link capacity through overlapping bands while avoiding interference through structured channel assignment and scheduling.
Data Source
AI summary
Described herein are systems and methods that improve or optimize return link capacity by employing overlapping return link channels in a return channel group (RCG) for a communications system shared by multiple user terminals. The disclosed technology enables different return link channel configurations to be used simultaneously while reducing or obviating the need for additional overhead messaging related to changing the configuration of the RCG. The disclosed technology allows for more efficient use of return link capacity by responding to changing conditions or demands in real time.