PUCCH Beam Management via Timing Gap Thresholds
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Solution Overview
Problem
Current beam management and indication techniques in multiple antenna communication systems face challenges in efficiently managing and optimizing beam settings for wireless devices and base stations, leading to suboptimal performance and coverage issues.
Innovation Solution
The implementation of advanced beam management and indication operations using various physical layer modulation and transmission mechanisms, such as Code Division Multiple Access (CDMA), Orthogonal Frequency Division Multiple Access (OFDMA), and Quadrature Amplitude Modulation (QAM), along with dynamic modulation and coding scheme adjustments based on transmission requirements and radio conditions, to enhance beam alignment and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional beam management techniques are used, then system complexity is reduced, but beam alignment accuracy and communication performance deteriorate
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple beam sets (first beam set and second beam set) with different beam widths before actual communication needs arise. This allows the system to quickly switch between narrow beams for precision and wide beams for coverage without complex real-time calculations, thereby improving beam alignment accuracy while managing system complexity through advance preparation.
Solution Approach 2:
The patent implements dynamics by enabling dynamic switching between different beam sets based on real-time communication requirements. The system can transition from wide beams during initial access to narrow beams for data transmission, and adaptively switch between beam sets to maintain optimal beam alignment as devices move or channel conditions change, thus improving alignment accuracy while maintaining manageable complexity through adaptive control.
2Productivity
If narrow beams are used for precise alignment, then communication efficiency is improved, but coverage area decreases
Solution Approach 1:
The patent applies segmentation by dividing the beamforming resources into multiple distinct beam sets, where each set contains beams with different characteristics (e.g., wide beams for coverage, narrow beams for efficiency). This segmentation allows the system to select appropriate beam types for different operational phases - using wide beams for initial coverage and narrow beams for subsequent high-efficiency communication, thereby resolving the contradiction between coverage area and communication efficiency.
Solution Approach 2:
The patent implements periodic action by establishing a structured process where the system periodically switches between different beam sets based on communication phase requirements. During initial access, wide beams are used periodically to ensure coverage; once connection is established, narrow beams are used periodically for efficient data transmission. This periodic switching pattern allows the system to achieve both broad coverage and high communication efficiency at different time intervals.
3Area of stationary object
If wide beams are used for coverage, then coverage area is increased, but beam alignment precision deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-configuring wide beams in the first beam set specifically for initial access and coverage establishment before precise alignment is required. This allows the system to use wide beams during the initial phase when coverage is the priority, then transition to narrow beams in the second beam set when precise alignment becomes necessary for data transmission, thus achieving both broad coverage and high alignment precision at appropriate times.
Solution Approach 2:
The patent implements dynamics by enabling dynamic selection and switching between beam sets with different beam widths. The system can adaptively choose wide beams when coverage area needs to be maximized (such as during initial access or when devices are far apart) and switch to narrow beams when alignment precision becomes critical (such as during high-rate data transmission), thereby dynamically optimizing the trade-off between coverage area and beam alignment precision based on real-time conditions.
Data Source
AI summary
A wireless device receives configuration parameters, of a physical uplink control channel (PUCCH), indicating a timing gap threshold between a physical downlink shared channel (PDSCH) and the PUCCH. The wireless device receives one or more messages indicating a downlink transmission configuration indication (TCI) and an uplink TCI. The wireless device transmits uplink control information via the PUCCH using a spatial domain transmission filter, wherein the spatial domain transmission filter is based on one of the downlink TCI or the uplink TCI in response to a comparison between the timing gap threshold and a timing gap between a PDSCH resource and a PUCCH resource.