DRX Report Transmission Timing for Non-Terrestrial Networks
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Solution Overview
Problem
Current wireless communication networks face challenges in efficiently managing traffic load, packet sizes, and traffic characteristics across different technologies and releases, leading to suboptimal performance in 5G and LTE networks, particularly in terms of data flow and resource allocation.
Innovation Solution
The implementation of advanced NR user plane and control plane protocol stacks, along with bandwidth adaptation and carrier aggregation techniques, allows for flexible configuration and dynamic adjustment of bandwidth parts, core sets, and resource allocation to optimize data flow and resource utilization across multiple technologies and releases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If Discontinuous Reception (DRX) is implemented to reduce power consumption and processing load, then energy efficiency and device battery life are improved, but packet loss increases and data transmission reliability deteriorates
Solution Approach 1:
The patent applies preliminary action by having the network node transmit indication information before actual data transmission begins. This indication information informs the wireless device about upcoming data transmissions, allowing the device to wake up in advance from discontinuous reception mode, thereby reducing packet loss while maintaining energy efficiency benefits of DRX
Solution Approach 2:
The patent implements feedback mechanisms where the network node transmits indication information about data transmission schedules to the wireless device. This feedback loop allows the device to adjust its reception timing accordingly, ensuring packets are not lost due to missed transmissions during DRX cycles while still conserving energy
2Productivity
If bandwidth parts and carrier aggregation are dynamically adjusted to optimize data flow, then network efficiency and resource utilization are improved, but system complexity increases
Solution Approach 1:
The patent applies dynamics by implementing dynamic adjustment of bandwidth parts and carrier aggregation configurations based on real-time traffic conditions and device capabilities. The system can flexibly reconfigure transmission parameters without requiring complex manual intervention, thereby improving network efficiency while managing complexity through automated adaptive algorithms
Data Source
AI summary
A wireless device receives one or more configuration parameters indicating: a discontinuous reception (DRX) operation and to transmit a report at a first symbol. The wireless device transmits the report at the first symbol based on a second symbol being in an active time of the DRX operation, where the second symbol occurs a number of symbols prior to the first symbol, and the number of symbols is determined based on an open-loop timing advance (TA) value.