Sidelink Resource Selection via Channel Busy Ratio
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Solution Overview
Problem
Current mobile communication networks face challenges in efficiently managing and optimizing communication protocols across diverse wireless devices and base stations supporting multiple technologies, leading to suboptimal performance and resource utilization.
Innovation Solution
The implementation of advanced New Radio (NR) user plane and control plane protocol stacks, along with flexible bandwidth management and carrier aggregation techniques, enables dynamic configuration and adaptation of communication protocols to suit varying traffic conditions and device capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless devices and base stations support multiple communication technologies, then device compatibility and network coverage are improved, but resource utilization and network efficiency deteriorate
Solution Approach 1:
The network is segmented into multiple independent protocol stacks (first protocol stack and second protocol stack), each handling specific communication technologies. This allows the system to selectively activate only the necessary protocol stack based on the communication scenario, avoiding the overhead of maintaining all protocols simultaneously and thus improving network efficiency while preserving device compatibility.
Solution Approach 2:
The patent implements dynamic protocol stack selection where the system can switch between different protocol stacks based on real-time communication requirements. The first protocol stack is used for initial access and random access procedures, while the second protocol stack is used for data transmission, allowing the system to adapt dynamically to different operational states and optimize resource utilization.
2Reliability
If protocol stacks are configured for all possible communication scenarios, then communication reliability is improved, but system complexity and resource consumption increase
Solution Approach 1:
Different protocol stacks are configured with specialized optimizations for their specific functions. The first protocol stack is optimized for control plane operations and random access, while the second protocol stack is optimized for user plane data transmission. This local specialization ensures high reliability for each function without requiring all protocols to be fully configured everywhere, reducing overall system complexity.
Solution Approach 2:
The patent pre-configures multiple protocol stacks but only activates the necessary one based on the communication scenario. The first protocol stack is prepared for initial access scenarios, and the second protocol stack is prepared for data transmission scenarios. This preliminary configuration ensures reliability when needed while avoiding the complexity of actively managing all protocols simultaneously.
3Productivity
If resource allocation is optimized for specific device capabilities, then transmission performance is improved, but adaptability to diverse devices deteriorates
Solution Approach 1:
The patent implements a universal architecture with multiple protocol stacks that can serve different device types and capabilities. The first protocol stack handles devices requiring random access procedures, while the second protocol stack handles devices ready for direct data transmission. This multi-functional design allows the system to optimize transmission performance for each device type while maintaining broad adaptability across diverse wireless devices with different capabilities.
Data Source
AI summary
A wireless device receives, from a second wireless device, sidelink control information indicating resource assignment of a physical sidelink shared channel (PSSCH). The wireless determines based on a channel busy ratio a signal quality of the assigned PSSCH. Based on the determined signal quality of the assigned PSSCH the wireless device selects one or more resources, before transmitting one or more transport blocks via the one or more selected resources.