D2D Link Formation Using Beam Load Information
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Solution Overview
Problem
In wireless communication systems, device-to-device (D2D) communication links are challenging to form efficiently due to congestion and resource allocation issues, particularly in scenarios like vehicle-to-everything (V2X) communications, where unnecessary access and resource allocation occur, leading to inefficiencies.
Innovation Solution
A method is developed to select communication devices for forming D2D links based on load information measured for each beam direction, minimizing unnecessary access and resource allocation by broadcasting traffic load information and using it to determine optimal access control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If D2D terminals attempt to form communication links without load information, then communication links can be established, but unnecessary access and resource allocation occur leading to network congestion and inefficiency
Solution Approach 1:
The system performs preliminary actions by measuring and broadcasting load information for each beam direction before D2D link formation. Terminals use this pre-acquired load information to make informed decisions about which communication devices to select, preventing unnecessary access attempts and optimizing resource allocation from the outset.
2Ease of operation
If D2D terminals select communication devices without beam direction load information, then link formation is possible, but beam scanning procedures are unnecessarily repeated increasing access time
Solution Approach 1:
The system implements feedback by measuring load information for each beam direction and broadcasting it to D2D terminals. This feedback mechanism allows terminals to select communication devices based on actual load conditions, eliminating the need for repeated beam scanning procedures and reducing access time while maintaining operational simplicity.
3Area of stationary object
If all beam directions are used for communication without load consideration, then communication coverage is maximized, but network congestion increases in high-load directions
Solution Approach 1:
The system applies local quality by making the communication system aware of spatial variations in load conditions across different beam directions. Terminals can selectively access communication devices in directions with lower load, distributing traffic more evenly across the network and reducing congestion in high-load directions while maintaining overall coverage.
Data Source
Figure 1(a)~1(b)
Figure 2
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AI summary
According to various embodiments, disclosed are a method by which a device-to-device (D2D) terminal (UE) forms a communication link in a wireless communication system, and an apparatus for the same. Disclosed are a method by which a D2D UE forms a communication link in a wireless communication system, and an apparatus for the same, the method comprising the steps of: acquiring load information on the load measured according to beam direction; selecting, on the basis of the load information, any one communication device among at least one communication device corresponding according to beam direction; and forming a communication link with the selected communication device.