Scheduling Request for Deprioritized UL-SCH Resource
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing deprioritized uplink shared channel (UL-SCH) resources, leading to potential data loss or delayed transmission due to lack of transmission opportunities.
Innovation Solution
A method where a user equipment (UE) receives an UL-SCH resource, determines if it is deprioritized and overlapped with another resource, and triggers a scheduling request (SR) to inform the network of the deprioritized resource while having data available for transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If UL-SCH resources are deprioritized to make way for higher priority transmissions, then higher priority data transmission is improved, but deprioritized data transmission reliability deteriorates
Solution Approach 1:
The UE triggers a scheduling request in advance when it detects that deprioritized data is present in the buffer and the corresponding UL-SCH resource is overlapped with a higher priority resource. This preliminary action allows the network to allocate alternative resources before the deprioritized data transmission opportunity is lost, preventing data loss and ensuring reliable transmission.
2Productivity
If UL-SCH resources are allocated for data transmission, then transmission capacity is improved, but resource conflict and transmission delay worsen
Solution Approach 1:
The UE provides feedback to the network by triggering a scheduling request when deprioritized data is detected in the buffer. This feedback mechanism enables the network to monitor the transmission status and dynamically allocate alternative resources, ensuring that deprioritized data receives timely transmission opportunities without causing delays or loss.
3Productivity
If multiple UL-SCH resources are allocated simultaneously, then transmission efficiency is improved, but resource overlap and transmission conflicts worsen
Solution Approach 1:
The system dynamically adjusts resource allocation based on real-time transmission needs. When the UE detects that deprioritized data is present and the UL-SCH resource overlaps with higher priority resources, it triggers a scheduling request. This dynamic mechanism allows the network to flexibly manage resource conflicts and optimize transmission efficiency without excessive complexity.
Data Source
AI summary
The present invention relates to a method of transmitting a scheduling request (SR) by a user equipment (UE) in a wireless communication system. In particular, the method includes the steps of: receiving an uplink shared channel (UL-SCH) resource; based on the UL-SCH resource being overlapped with another resource and the UL-SCH resource being deprioritized, triggering an SR for informing that the UL-SCH resource is deprioritized while having data available for transmission on the UL-SCH resource; and transmitting the SR to a network.