Node Allocation in Multi-Node Wireless Systems
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Solution Overview
Problem
In multi-node wireless communication systems, existing technologies face challenges in efficiently managing node allocation and data transmission due to high node density and varying channel conditions, leading to suboptimal data capacity and transmission efficiency.
Innovation Solution
A method for allocating nodes in a multi-node system using a sum rate analysis, where a 1st node determines and allocates a preset number of node candidates to user equipment based on their location, without requiring instantaneous channel state information, using a formula Nc=2N−1, to optimize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If node allocation is performed without considering channel conditions, then device complexity is reduced, but data capacity and transmission efficiency deteriorate
Solution Approach 1:
The patent changes the parameter for node allocation from instantaneous channel state information to location-based static information. By using location information instead of real-time channel conditions, the system reduces computational complexity while still achieving optimized node selection through geometric relationships and sum rate analysis.
2Productivity
If instantaneous channel state information is used for node allocation, then transmission efficiency is improved, but feedback load and computational complexity increase
Solution Approach 1:
The patent performs preliminary node selection based on location information before actual data transmission. By pre-determining node candidates using geometric relationships and sum rate analysis, the system avoids the need for continuous feedback of instantaneous channel state information while maintaining transmission efficiency.
3Productivity
If all nodes are used for data transmission, then data capacity is maximized, but interference increases
Solution Approach 1:
The patent applies local quality by selecting nodes based on their specific location characteristics and geometric relationships with user equipment. Instead of uniformly using all nodes, the system identifies optimal local nodes that maximize sum rate while minimizing interference through location-based selection criteria.
Data Source
AI summary
In a multi-node system including a user equipment and a plurality of nodes connected to each other, a plurality of the nodes includes a 1st node and a 2nd node and the 1st node allocates at least one portion of a plurality of the nodes to a user equipment. The present invention includes receiving a 1st information on a location of the user equipment from the 2nd node among a plurality of the nodes, determining a preset number of node candidates located close to the user equipment among a plurality of the nodes using the received 1st information, and transmitting information on the node candidates to the user equipment to allocate at least one of the node candidates to the user equipment.