Multi-Panel Terminal Uplink Transmission via Independent Channel Detection
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Solution Overview
Problem
In a multi-panel terminal scenario, existing technologies face challenges in efficiently performing channel detection and determining which bandwidth units (BWUs) to use for uplink information transmission in Licensed-Assisted-Access (LAA) and New Radio-Unlicensed (NR-U) spectra, where multiple antenna panels have the same active bandwidth parts, leading to suboptimal spectrum efficiency and increased power consumption.
Innovation Solution
Each antenna panel independently selects a channel detection mechanism and parameter based on the priority of uplink information to be transmitted, performing channel detection on multiple BWUs and transmitting uplink information on idle BWUs, with the terminal transmitting indication information to the network device about detected idle BWUs for improved spectrum efficiency and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antenna panels perform channel detection on the same active BWP, then channel access mechanism is satisfied, but spectrum efficiency is reduced and power consumption increases
Solution Approach 1:
The patent segments the channel detection process by allowing each antenna panel to independently detect idle BWUs within its active BWP, rather than requiring all panels to detect the entire BWP uniformly. This segmentation enables parallel detection operations that identify available resources more efficiently, improving spectrum utilization while maintaining reliable channel access through LBT mechanism.
2Reliability
If multiple antenna panels perform channel detection on the same active BWP, then channel access mechanism is satisfied, but terminal power consumption increases
Solution Approach 1:
The patent applies local quality by enabling each antenna panel to perform channel detection independently on its own active BWP, allowing panels to identify and utilize idle BWUs locally without requiring all panels to perform full BWP detection. This localized detection approach reduces the total detection workload and power consumption while maintaining reliable channel access through individual panel LBT operations.
3Device complexity
If all antenna panels use the same active BWP configuration, then system simplicity is maintained, but optimal channel utilization is not achieved
Solution Approach 1:
The patent introduces dynamics by allowing each antenna panel to independently determine its active BWP configuration based on local channel conditions and idle BWU detection results, rather than being constrained to a uniform BWP setup. This dynamic adaptation enables panels to flexibly utilize available spectrum resources, improving channel utilization while maintaining manageable system complexity through independent panel decision-making.
Data Source
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AI summary
The present disclosure relates to a data transmission method, apparatus and storage medium. The data transmission method is applied to a terminal, the terminal having at least two antenna panels. The method comprises: in a first channel idle bandwidth unit (BWU) set, one or more BWUs is selected as a first BWU sub-set, the first BWU set being determined on the basis of a channel idle BWU detected by each antenna panel among the at least two antenna panels on an active BWP; one or more antenna panels among the at least two antenna panels respectively transmits uplink information on one or more BWUs in the first BWU sub-set. By means of the present disclosure, in a scenario in which there are a plurality of panels, the plurality of panels independently perform channel detection, and perform uplink transmission according to channel idle BWU detected by the plurality of panels, which improves spectrum efficiency while reducing the power consumption of the terminal.