Uplink Scheduling via Remaining PDB Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G mobile communication systems face challenges in reducing packet loss rates, particularly for Extended Reality (XR) services that require real-time performance and strict transmission delay constraints, as existing methods fail to effectively manage data packet transmission within the Packet Delay Budget (PDB).
Innovation Solution
A method executed by User Equipment (UE) that determines the remaining PDB of data packets in buffers and transmits related information to the base station, enabling proper uplink scheduling and reducing packet loss rates by informing the base station about the remaining transmission time and packet sizes or ratios within the PDB.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional uplink scheduling methods are used, then device complexity is low, but packet loss rate increases and transmission efficiency deteriorates
Solution Approach 1:
The patent implements feedback by having the UE report remaining PDB information to the base station, which then uses this feedback to adjust uplink scheduling decisions. This feedback mechanism enables the base station to prioritize packets with tighter deadline constraints, thereby reducing packet loss without requiring overly complex local intelligence at the UE side.
Solution Approach 2:
The patent applies preliminary action by calculating and reporting the remaining PDB before the actual transmission occurs. This allows the base station to prepare scheduling decisions in advance, allocating resources proactively to packets that will expire soonest, thus preventing packet loss before it happens rather than reacting after loss occurs.
2Reliability
If data packets are transmitted without considering remaining PDB, then transmission speed is maintained, but packet loss rate increases for delay-sensitive services
Solution Approach 1:
The patent changes the scheduling parameter from simple queue depth or priority to remaining PDB values. By using this time-based parameter that dynamically reflects deadline constraints, the system can adapt scheduling decisions to the actual temporal requirements of different packets, improving both reliability for delay-sensitive services and overall transmission efficiency.
Solution Approach 2:
The patent introduces dynamic scheduling by continuously monitoring and updating remaining PDB values for packets in the buffer. The scheduling decisions change dynamically based on the evolving timing characteristics of packets, allowing the system to adapt to varying traffic patterns and service requirements in real-time.
3Productivity
If remaining PDB information is reported to base station, then uplink scheduling improves, but signaling overhead increases
Solution Approach 1:
The patent extracts only the essential information needed for scheduling decisions - the remaining PDB value - and reports only this critical parameter to the base station. By taking out only the necessary information rather than transmitting complete packet metadata, the system achieves improved scheduling performance while minimizing signaling overhead.
Solution Approach 2:
The patent applies partial action by reporting only the remaining PDB information rather than all possible packet attributes. This partial reporting approach provides sufficient information for effective scheduling while avoiding the excessive overhead that would result from transmitting complete packet headers, payload metadata, and other unnecessary information.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments of the present disclosure provide a communication method, an electronic device and a computer-readable storage medium. For an uplink service, the method comprises steps of: by a user equipment, determining a remaining PDB of a data packet in a buffer, and reporting related information of the remaining PDB to a base station, so as to assist the base station to perform proper uplink scheduling for the User Equipment according to the related information of the remaining PDB. Accordingly, the packet loss rate of data packets is reduced, and the transmission efficiency is improved.