Sidelink DRX Coordination for 5G Resource Allocation
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Solution Overview
Problem
Current mobile communication networks face challenges in efficiently managing wireless devices with diverse capabilities and technologies across different releases, particularly in 5G networks, where existing protocols struggle to optimize resource allocation and communication efficiency across various devices and base stations.
Innovation Solution
The implementation of advanced NR user plane and control plane protocol stacks, along with sidelink communication mechanisms, enables flexible resource management and communication protocols that adapt to different wireless device capabilities and network configurations, facilitating efficient data transmission and device coordination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing protocols are used for resource allocation, then device compatibility is maintained, but resource allocation efficiency deteriorates in heterogeneous 5G environments
Solution Approach 1:
The patent implements dynamic resource allocation where the first wireless device adapts its transmission parameters (modulation scheme, coding rate, resource blocks) based on channel conditions and the second device's reception capabilities. This dynamic adaptation enables efficient resource utilization while maintaining compatibility across diverse device types in 5G networks.
Solution Approach 2:
The system changes transmission parameters such as modulation order, coding rate, and resource allocation based on the receiving device's capabilities and channel conditions. By dynamically adjusting these parameters, the system achieves both high resource allocation efficiency and broad device adaptability in heterogeneous 5G environments.
2Productivity
If advanced protocol stacks are implemented, then communication efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments the communication protocol into distinct layers (physical layer, MAC layer, RLC layer, PDCP layer, RRC layer) with specific functions at each layer. This segmentation allows complex 5G communication protocols to be managed through modular design, improving communication efficiency while making the system more manageable and implementable.
Solution Approach 2:
The protocol stack is designed with multi-functional elements that can operate in different modes depending on the device type and network conditions. For example, the same physical layer can support both legacy and advanced 5G features, reducing overall system complexity while maintaining high communication efficiency.
3Ease of operation
If sidelink coordination mechanisms are added, then device coordination is improved, but system complexity increases
Solution Approach 1:
The patent introduces a coordination mechanism where one wireless device acts as an intermediary to assist another device in resource selection and transmission parameter determination. This intermediary approach improves device coordination efficiency by enabling cooperative communication, while the standardized coordination protocols keep the added complexity manageable.
Data Source
AI summary
A wireless device receives a message comprising one or more sidelink DRX parameters indicating a sidelink DRX inactive time of the first wireless device. The wireless device decodes, from a second wireless device and during the sidelink DRX inactive time, coordination information for one or more sidelink transmissions by the first wireless device. The coordination information indicates at least one of a set of resources for the one or more sidelink transmissions or a resource collision between a first resource and a second resource. where a first sidelink control information (SCI) of the one or more sidelink transmissions includes a parameter indicating resource reservation of the first resource and the second wireless device receives a second SCI indicating resource reservation of the second resource.