Composite Data Packet Grouping for 5G URLLC Latency and Reliability
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Solution Overview
Problem
Traditional short-packet communication in 5G URLLC scenarios fails to simultaneously meet the requirements for both latency and reliability due to the trade-off between shorter data packets and resource allocation limitations.
Innovation Solution
Integrating multiple short data packets into a composite data packet for transmission, allowing for more efficient resource allocation and decoding at the terminal device, while considering data configuration parameters and channel status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If shorter data packets are transmitted to meet latency requirements, then latency is reduced, but reliability deteriorates because each bit requires larger average transmission resources
Solution Approach 1:
The patent combines multiple short data packets into a single composite data packet for transmission. This merging approach allows the system to transmit what would otherwise be multiple separate short packets (meeting latency requirements) while achieving the reliability of longer packets through unified channel coding and resource allocation. The composite packet structure enables efficient use of transmission resources while maintaining low latency.
2Productivity
If data packets are sent at the same rate with limited resources, then resource utilization is maintained, but reliability deteriorates because each bit in shorter packets requires larger average transmission resources
Solution Approach 1:
By merging multiple short packets into one composite packet, the system achieves better resource utilization efficiency. The unified structure allows for more effective channel coding and resource allocation across the entire data set, reducing the overhead and resource consumption per bit compared to transmitting separate short packets individually.
3Reliability
If packet length is increased to meet reliability requirements, then reliability is improved, but latency increases and may exceed requirements
Solution Approach 1:
The patent segments the composite data packet into multiple individual data packets after transmission. This segmentation allows the system to benefit from the reliability of longer packet transmission while maintaining the low latency characteristic of short packets at the receiving end, as each original short packet can be extracted and processed independently.
Solution Approach 2:
The system performs preliminary grouping and integration of multiple short packets into a composite packet before transmission. This preliminary action enables optimized resource allocation and channel coding to be applied in advance, ensuring both reliability and latency requirements are met during the actual transmission phase.
4Loss of time
If traditional short-packet communication is used, then latency is reduced, but the system fails to meet both latency and reliability requirements simultaneously
Solution Approach 1:
The core innovation is merging multiple short packets into a composite packet structure that enables simultaneous satisfaction of both latency and reliability requirements. The composite packet is transmitted as a unified unit with optimized resource allocation, then segmented at the receiver to deliver both performance metrics.
Solution Approach 2:
The system dynamically groups multiple short packets into composite packets based on channel conditions, resource availability, and QoS requirements. This dynamic approach allows flexible adaptation to meet both latency and reliability targets under varying network conditions, rather than using a fixed packet structure.
Data Source
AI summary
The present disclosure relates to electronic device, method for a wireless communication system and storage medium. In an embodiment of the present disclosure, a plurality of terminal devices are grouped based on respective data configuration parameters of the plurality of terminal devices; and for each group, data packets for terminal devices in the group are integrated into a composite data packet to be sent to the terminal devices in the group.