Dynamic Carrier Selection for Multi-Carrier Systems
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Solution Overview
Problem
Current multi-carrier systems face challenges in backward compatibility with single carrier systems, leading to increased complexity, power demand, and inefficient use of network capacity, as they require mobile nodes to detect multiple carriers regardless of traffic load.
Innovation Solution
A method and apparatus for selecting one or more carriers in a multi-carrier system based on Quality of Service (QoS) requirements, channel quality, and load, allowing for dynamic carrier and channel selection, including the use of dedicated, shared, and combined carriers to optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If all multiple carriers are utilized in a multi-carrier system, then network capacity is maximized, but precious network capacity is wasted when traffic load does not fully utilize the full capacity
Solution Approach 1:
The system dynamically selects the number of carriers to activate based on real-time traffic load conditions. The network controller monitors traffic demand and adjusts carrier activation accordingly, transitioning from static full-carrier utilization to dynamic carrier selection that matches actual network needs.
Solution Approach 2:
The system changes the operational parameter of carrier activation state based on traffic load. When traffic load is low, fewer carriers are activated; when traffic load increases, more carriers are brought online. This parameter adjustment optimizes both capacity utilization and energy efficiency.
2Adaptability or versatility
If mobile nodes detect multiple carriers in a multi-carrier system, then carrier selection capability is improved, but the detection process imposes a heavy demand on operating power and reduces talk-time
Solution Approach 1:
Mobile nodes perform partial carrier detection by only monitoring a subset of carriers rather than all available carriers. The system identifies and monitors only the most relevant carriers based on current network conditions and user needs, reducing detection overhead while maintaining essential functionality.
Solution Approach 2:
The patent extracts the carrier detection function from continuous operation and implements it selectively. Instead of continuously detecting all carriers, the system performs detection only when necessary and only for relevant carriers, separating the detection function from constant operation.
3Adaptability or versatility
If mobile nodes are configured to support multiple carriers, then multi-carrier compatibility is achieved, but greater complexity and associated cost are introduced
Solution Approach 1:
The patent implements a universal carrier selection mechanism that allows mobile nodes to operate across multiple carriers using a common detection and selection framework. This multi-functionality enables single-carrier and multi-carrier operations through the same basic infrastructure, reducing the need for separate specialized components.
Data Source
AI summary
An approach is provided for communicating in a multi-carrier system. A carrier selector selects one or more carriers among a plurality of carriers for transport of data over the multi-carrier system, wherein the data is transmitted using the selected carriers.