Active BWP Allocation Using Idle BWUs Across Multi-Panel NR-U
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Solution Overview
Problem
In a multi-TRP/panel scenario, existing technologies struggle to efficiently allocate resources to terminals due to varying idle BWUs detected by different antenna panels in the NR-U spectrum, leading to inefficient spectrum usage and increased power consumption.
Innovation Solution
The network device determines an active BWP based on idle BWUs detected by multiple antenna panels, reallocating resources to terminals through indication signaling, downlink resource scheduling, and deactivation of non-idle BWUs to improve spectrum efficiency and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the active BWP is configured to include multiple BWUs of LBT channel detection in a multi-TRP/panel scenario, then the bandwidth and spectrum positions can be expanded to match maximum component carrier bandwidth, but the resource allocation efficiency deteriorates and power consumption increases
Solution Approach 1:
The patent segments the active BWP into multiple BWUs (bandwidth units) for independent LBT channel detection. Each TRP/panel can detect idle BWUs separately and report to the network device, which then allocates resources based on actual idle conditions. This segmentation enables flexible resource allocation that matches real-time channel availability, resolving the contradiction between large bandwidth configuration and efficient resource utilization.
Solution Approach 2:
The patent implements dynamic active BWP configuration where the network device can adjust the active BWP based on LBT detection results from multiple TRPs/panels. The active BWP is not fixed but dynamically adapted to reflect actual channel idle conditions, allowing efficient resource allocation that responds to real-time spectrum availability while maintaining the ability to support large bandwidth when conditions permit.
2Area of moving object
If the active BWP includes multiple BWUs of LBT channel detection, then the spectrum coverage is expanded, but the power consumption of the terminal increases
Solution Approach 1:
By segmenting the spectrum into discrete BWUs that can be independently detected and allocated, the system enables the terminal to focus monitoring and processing only on relevant BWUs rather than the entire active BWP. This segmentation reduces the terminal's processing burden and power consumption while maintaining comprehensive spectrum coverage capability.
Solution Approach 2:
The network device performs LBT channel detection on behalf of the terminal for multiple TRPs/panels, and the terminal receives allocated resources based on these detections. This self-service approach shifts the detection burden from the terminal to the network device, reducing terminal power consumption while maintaining full spectrum coverage awareness.
3Device complexity
If identical active BWP is configured for each terminal by each TRP/panel, then the configuration simplicity is maintained, but the spectrum efficiency deteriorates
Solution Approach 1:
The patent segments the BWP configuration into individual BWP settings for each TRP/panel while maintaining a unified active BWP framework. The network device determines BWUs to be allocated based on LBT detection results from each TRP/panel independently, then integrates these into a coordinated resource allocation that optimizes spectrum efficiency across all TRPs/panels.
Solution Approach 2:
The patent applies local quality by allowing different TRPs/panels to have different LBT detection results and allocation decisions based on their local channel conditions. While the overall active BWP framework remains unified, the actual resource allocation within the BWP adapts to local idle conditions, improving spectrum efficiency without requiring completely separate configurations for each TRP/panel.
Data Source
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AI summary
The invention provides a method for resource allocation and apparatus, and a storage medium. The method comprises: determining a second bandwidth part (BWP) on the basis of channel idle bandwidth units (BWU), detected in a first BWP, of antenna panels in at least two antenna panels; and transmitting indication signaling, the indication signaling being used for indicating taking the second BWP as an activated BWP, and/or being used for indicating channel idle states of the BWUs in the second BWP. The invention can improve the frequency spectrum efficiency and also reduce power consumption of a terminal.