V2X Resource Reservation via Control Information Bit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing resource reservation and congestion control for V2X (vehicle-to-everything) UE communication, leading to suboptimal data transmission and reception in congested environments.
Innovation Solution
A method where a UE receives control information with an information bit indicating resource reservation status, allowing the UE to reserve or release frequency resources accordingly, enabling efficient data transmission and reception by synchronizing resource allocation with the reservation status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource reservation is implemented in V2X communication, then data transmission reliability is improved, but system complexity and overhead increase
Solution Approach 1:
The patent implements resource reservation by allowing UEs to pre-select and reserve time-frequency resources for future data transmissions. The transmitting UE selects resources from a resource pool and reserves them by setting a resource reservation indicator in the control information, ensuring that resources are available before data transmission occurs. This preliminary action improves reliability by guaranteeing resource availability while managing complexity through structured resource pool configuration.
Solution Approach 2:
The resource pool is segmented into multiple time-frequency resources that can be independently selected and reserved. Control information is segmented to include a specific resource reservation indicator field that points to reserved resources. This segmentation allows the system to manage complexity by breaking down the resource allocation into discrete, manageable units while maintaining overall reliability through coordinated resource management.
2Productivity
If resource reservation indicator is added to control information, then resource management efficiency is improved, but control information overhead increases
Solution Approach 1:
The patent adds a resource reservation indicator field specifically to the control information structure. This local modification allows the control information to carry resource reservation status without redesigning the entire control message format. The indicator is placed in a specific field within the control information, enabling efficient resource management while minimizing the increase in overall control information overhead by only adding necessary elements.
3Loss of energy
If UEs transmit data directly without eNB coordination, then network overhead is reduced, but resource collision and congestion increase
Solution Approach 1:
The patent implements a sensing-based resource selection mechanism where UEs monitor the channel by detecting control information from other UEs. When a UE senses that reserved resources are occupied or congested, it adjusts its resource selection accordingly. This feedback mechanism allows direct UE-to-UE communication with reduced network overhead while maintaining reliability through distributed congestion control and collision avoidance based on real-time channel sensing.
Data Source
AI summary
One embodiment of the present invention relates to a method for UE receiving data in a wireless communication system, the method for receiving data comprising the steps of: receiving control information through a channel through which the control information is delivered; and confirming an information bit which is included in the control information and is related to reserving a resource, wherein the information bit simultaneously indicates whether UE which has transmitted the control information reserves the resource, and if the resource is reserved by the UE, the location of the resource.