Device-to-Device Coordination Message Resource Indication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently coordinating device-to-device communication, particularly in determining available resources and avoiding resource reservations among user equipment (UEs), leading to potential collisions and inefficient network utilization.
Innovation Solution
A method and apparatus for wireless communication that involve determining resource availability and transmitting device-to-device coordination messages, including bit indicators to indicate whether resources are reserved or available, allowing UEs to accurately identify and utilize unreserved resources, thereby reducing collisions and optimizing network resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If device-to-device coordination messages are transmitted to indicate resource availability, then resource allocation efficiency is improved, but message transmission overhead increases
Solution Approach 1:
The patent applies local quality by differentiating the coordination message format based on the specific scenario and UE requirements. Different message structures are used for different resource indication scenarios (e.g., single resource vs. multiple resources, reserved vs. non-reserved), allowing the system to transmit only the necessary information for each specific case, thereby improving efficiency while controlling overhead.
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting the resource indication format and message content based on current network conditions, resource availability patterns, and UE coordination needs. The system can switch between different indication methods (e.g., bitmap length, resource type specifications) to optimize the balance between allocation efficiency and message overhead.
2Reliability
If detailed resource availability information is provided in coordination messages, then collision avoidance is improved, but message complexity increases
Solution Approach 1:
The patent applies segmentation by dividing resource availability information into distinct fields and categories within the coordination message. Resources are indicated through structured elements such as resource block identifiers, time slot indicators, and availability status flags, allowing receiving UEs to efficiently parse and process only the relevant portions for their specific needs without being overwhelmed by the entire message structure.
3Quantity of substance
If UEs autonomously determine resource availability without coordination messages, then message overhead is reduced, but resource collision risk increases
Solution Approach 1:
The patent applies partial action by implementing coordination messages only when and where needed, rather than requiring continuous or universal coordination. The system allows UEs to autonomously determine resource availability in scenarios with low collision risk, while activating detailed coordination messaging only when resource contention is detected or predicted, thus reducing overall message overhead while maintaining reliability where necessary.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine whether a resource is available for use by one or more other UEs. The UE may transmit a device-to-device coordination message to indicate whether the resource is available for use by the one or more other UEs. Numerous other aspects are provided.