PUCCH Resource Selection for PSI and HARQ-ACK Multiplexing
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing positioning-related information on the Physical Uplink Control Channel (PUCCH) to reduce latency and optimize resource utilization for positioning state information (PSI) reports.
Innovation Solution
The method involves selecting and managing PUCCH resources based on the number of resource blocks, uplink control information size, and capability to include PSI reports, as well as prioritizing and multiplexing PSI reports to optimize transmission on the PUCCH.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple reports (PSI, HARQ-ACK, CSI) are multiplexed in the same PUCCH resource, then resource utilization improves, but report prioritization and transmission reliability deteriorate
Solution Approach 1:
The patent applies local quality by assigning different priority levels to different report types (PSI, HARQ-ACK, CSI) and configuring PUCCH resources with specific capabilities for each priority level. High-priority reports like HARQ-ACK are transmitted on dedicated PUCCH resources, while lower-priority reports can share resources, ensuring that critical information maintains transmission reliability while overall resource utilization improves.
2Adaptability or versatility
If PUCCH resources are configured to include both PSI reports and HARQ-ACK, then resource flexibility improves, but resource allocation complexity increases
Solution Approach 1:
The patent segments PUCCH resources into different types based on their capabilities - some resources are configured to carry only PSI reports, others carry only HARQ-ACK, and some can carry both. This segmentation allows the system to flexibly allocate appropriate resource types to different report combinations, reducing allocation complexity while maintaining high flexibility through the variety of resource configurations available.
3Productivity
If PUCCH resource selection is based on detailed parameters (RBS number, UCI size, capability), then transmission optimization improves, but determination complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring PUCCH resources with specific capabilities and characteristics before transmission occurs. The network configures multiple PUCCH resources with different properties (RBS numbers, UCI size capacities, report type capabilities) in advance, allowing the UE to select from pre-evaluated options rather than performing complex real-time optimization, thus reducing determination complexity while maintaining transmission optimization.
Data Source
AI summary
Techniques for communication by a user equipment (UE) are disclosed. Techniques can include determining a positioning state information (PSI) report to transmit, where the PSI report comprises positioning-related information, and selecting a physical uplink control channel (PUCCH) resource with which to transmit the PSI report, where the selected PUCCH resource comprises a number of resource blocks (RBS). Techniques can further include determining whether to transmit the PSI report using the selected PUCCH resource, based on: the number of RBS, a size of uplink control information (UCI) to be transmitted using the selected PUCCH resource, the selected PUCCH resource being configured with a capability to include both the PSI report and a hybrid automatic repeat request acknowledgment (HARQ-ACK), or the selected PUCCH resource being configured to include only one or more PSI reports, and optionally one or more CSI reports, as a payload, or any combination thereof.