User Equipment Priority Information Transmission in Wireless Systems
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Solution Overview
Problem
Current wireless communication systems, particularly in public safety networks, face challenges in ensuring Quality of Service (QoS) for Device-to-Device (D2D) operations, especially in emergency situations where priority data needs to be transmitted efficiently and reliably between devices.
Innovation Solution
A method and apparatus for user equipment (UE) to select and transmit priority information through D2D actions, associating a priority value with data and transmitting it to other terminals or the network, allowing for appropriate resource selection based on priority, thereby enhancing QoS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If D2D operation is implemented for direct communication between devices, then transfer rate and delay performance are improved, but QoS guarantee becomes difficult to ensure when multiple types of data need to be transmitted
Solution Approach 1:
The patent applies local quality by differentiating treatment based on data priority levels. The eNB allocates different resource pools (first resource pool for high priority, second resource pool for low priority) and applies different transmission parameters to different data types, ensuring that critical data receives preferential treatment while maintaining overall system efficiency.
Solution Approach 2:
The patent implements dynamics through dynamic resource allocation where the eNB determines which resource pool to use based on the priority level of data being transmitted. The system dynamically switches between different transmission configurations depending on the data type, allowing flexible QoS management in D2D operations.
2Reliability
If priority information is transmitted through the network, then QoS can be managed centrally, but transmission delay increases and network load increases
Solution Approach 1:
The patent applies self-service by enabling the UE to autonomously determine and transmit priority information for D2D data without requiring continuous network intervention. The UE selects appropriate resource pools based on data priority and can independently manage transmission, reducing network dependency and minimizing delay while still allowing network monitoring for QoS management.
3Reliability
If multiple resource pools are allocated for different priorities, then QoS differentiation is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the resource pool into distinct first and second resource pools corresponding to different priority levels. This segmentation allows the UE to simplify decision-making by associating specific resource pools with specific priority levels, making the complexity management more structured and easier to implement.
Data Source
AI summary
Provided are a method, carried out by a user equipment (UE), for transmitting priority information in a wireless communication system and a UE utilizing the method. The method is characterized by selecting a priority for data to be transmitted by means of a device-to-device (D2D) action, associating the value for the selected priority with the data, and transmitting the data and value for the selected priority.