Multi-Beam PUCCH Power Control for High-Frequency Reliability
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently managing multi-beam transmission for uplink control channels, particularly in high frequency ranges where beam blocking and unpredictable interference affect signal quality, leading to uncertain performance of physical uplink control channel mechanisms.
Innovation Solution
Implementing multiple candidate groups of power control parameters and beam states for physical uplink control channels, utilizing higher layer signaling and MAC CE to configure and activate these groups, and introducing identifiers in MAC CE signaling to manage beam states effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple candidate groups of power control parameters are configured for PUCCH resources, then the flexibility and reliability of uplink communication is enhanced, but the device complexity increases
Solution Approach 1:
The patent divides power control parameters into multiple candidate groups (first candidate group, second candidate group, etc.), where each group contains a set of parameters including p0, alpha, and beta. This segmentation allows the system to manage multiple beam states independently, selecting appropriate parameter groups based on current transmission conditions, thereby enhancing reliability without overwhelming complexity
Solution Approach 2:
The patent introduces dynamic switching between different candidate power control parameter groups based on beam state changes. The gNB can indicate different parameter groups through Downlink Control Information (DCI) signaling, allowing the UE to adapt power control parameters dynamically according to the active beam state, thus maintaining optimal performance across varying communication conditions
2Reliability
If beam states are managed using MAC CE signaling with identifiers, then the signal quality is improved, but the signaling overhead increases
Solution Approach 1:
The patent makes the MAC CE signaling structure universal by using a standardized identifier field (e.g., 2 bits) that can indicate different beam states or parameter group selections. This same signaling mechanism serves multiple purposes: identifying beam states, selecting power control parameter groups, and managing PUCCH resource configurations, thereby reducing overall signaling overhead compared to separate dedicated signaling for each function
Data Source
AI summary
Presented are systems, methods, apparatuses, or computer-readable media for multi-beam transmission signaling for uplink communication channels. A wireless communication device may receive, from a wireless communication node, B candidate groups of power control parameters. The wireless communication device may receive, from the wireless communication node, a first signaling to indicate the B candidate groups of power control parameters for a first physical uplink control channel (PUCCH) resource. B may be an integer greater than or equal to 1.