Sidelink Resource Feedback Reporting for 5G NR Bandwidth Adaptation
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Solution Overview
Problem
Current wireless communication networks face challenges in efficiently managing bandwidth and resource allocation across multiple carriers and cells, leading to suboptimal data rates and network performance.
Innovation Solution
The implementation of bandwidth parts (BWPs) and carrier aggregation configurations in 5G New Radio (NR) technology, which allows for dynamic switching between different bandwidth configurations and simultaneous use of multiple carriers, optimizing resource utilization and adapting to varying traffic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bandwidth parts (BWPs) and carrier aggregation configurations are implemented, then network flexibility and data rate performance are improved, but device complexity increases
Solution Approach 1:
The patent segments the bandwidth into multiple bandwidth parts (BWPs), each with different bandwidth configurations. This allows the system to dynamically select and switch between BWPs based on traffic conditions, thereby improving network flexibility and adaptability while managing device complexity through structured configuration.
Solution Approach 2:
The patent implements dynamic switching between different bandwidth configurations and carrier aggregation states. The system can adaptively adjust the active BWP and carrier aggregation configuration based on real-time traffic demands and network conditions, enhancing network flexibility without requiring permanent complex configurations.
2Productivity
If dynamic switching between bandwidth configurations is enabled, then resource utilization is optimized, but measurement and configuration complexity increases
Solution Approach 1:
The patent changes key parameters such as bandwidth size, carrier aggregation configuration, and active BWP index to optimize resource utilization. By dynamically adjusting these parameters based on traffic conditions, the system achieves optimized resource allocation while managing configuration complexity through standardized parameter sets.
3Speed
If multiple carriers are aggregated and dynamically configured, then data rate performance improves, but measurement precision requirements increase
Solution Approach 1:
The patent incorporates feedback mechanisms where the device reports measurement information about channel conditions, signal quality, and traffic characteristics to the network. This feedback enables the network to make informed decisions about carrier aggregation configuration and BWP selection, improving data rate performance while managing measurement precision requirements through targeted measurements.
Data Source
AI summary
A first wireless device receives, from a second wireless device, sidelink control information comprising a field with a value indicating to transmit a report message comprising preferred radio frequency resources of a sidelink between the first wireless device and the second wireless device. In response to the value of the field indicating to transmit the report message, the first wireless device transmits, to the second wireless device and via a physical sidelink shared channel of the sidelink, the report message indicating radio frequency resources preferred by the first wireless device. The first wireless device receives, from the second wireless device, sidelink transport blocks via one or more resources of the preferred radio frequency resources.