UE Scheduling Request Timing Using Peer Data Indication
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Solution Overview
Problem
Conventional UE systems experience delays in transmitting scheduling requests (SR) and receiving uplink grants due to the need to wait until UL data is generated and stored, leading to inefficiencies in data transmission.
Innovation Solution
Implementing a method where a first UE transmits an indication to a second UE, allowing the second UE to send an SR to the network node before receiving data, thereby reducing the delay by using communication methods like Wi-Fi, Bluetooth, or a cable, and incorporating traffic profile and QoS information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the UE waits until UL data is generated and stored before transmitting the scheduling request, then the data transmission follows the conventional procedure, but the delay between SR and UL grant increases
Solution Approach 1:
The UE transmits the scheduling request to the network node in advance of obtaining the UL data, by receiving an indication from another UE that UL data will be generated. This preliminary action allows the network node to prepare resources ahead of time, reducing the delay between SR and UL grant while maintaining procedural simplicity through standardized signaling mechanisms.
2Productivity
If the UE transmits SR in advance before obtaining UL data, then the delay between SR and UL grant is reduced, but the UE must accurately predict when data will be available
Solution Approach 1:
The system uses feedback mechanisms where the first UE provides indication information to the second UE about upcoming data transmission. This feedback loop allows the receiving UE to accurately predict data availability timing, ensuring reliable SR transmission scheduling while improving overall data transmission efficiency through coordinated resource allocation.
Data Source
AI summary
A method for scheduling request (SR) transmission is provided. The method may include the following steps. A first user equipment (UE) may transmit an indication for data transmission to a second UE. The second UE may transmit an SR to a network node based on the indication before receiving data from the first UE.