Beam-Correspondence Uplink Skipping Under Downlink Beam Blockage
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Solution Overview
Problem
In wireless communication systems, particularly in high-frequency bands like FR2, beam blockage can lead to reliability issues with uplink transmissions due to susceptibility to environmental factors, resulting in inefficient and potentially blocked signals.
Innovation Solution
The implementation of transmission skipping based on beam correspondence, where a processor determines if a downlink transmission beam is blocked or below a threshold signal strength, and autonomously skips uplink transmissions on corresponding beams or panels to mitigate blockage, using beam quality and spatial relations for decision-making.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If uplink transmissions are performed on beams corresponding to blocked downlink beams, then transmission continuity is maintained, but transmission reliability deteriorates due to blockage-related signal loss
Solution Approach 1:
The UE performs preliminary assessment of downlink beam quality before initiating uplink transmissions. By evaluating downlink beam blockage conditions in advance, the system can proactively skip uplink transmissions on corresponding beams before blockage-related signal loss occurs, thereby maintaining transmission reliability while preserving continuity through alternative beams
Solution Approach 2:
The patent implements transmission skipping by identifying and bypassing blocked beams. When downlink beam blockage is detected, the corresponding uplink transmissions are skipped on those specific beams, allowing the system to rush through the blockage issue by quickly switching to alternative unblocked beams, thus maintaining overall transmission reliability
2Reliability
If beam correspondence is used for transmission skipping decisions, then transmission reliability improves by avoiding blocked beams, but device complexity increases due to additional beam monitoring and decision logic
Solution Approach 1:
The patent leverages the existing downlink beam monitoring functionality to serve dual purposes: maintaining downlink communication quality and making uplink transmission skipping decisions. By making the beam quality assessment mechanism universal, the system achieves improved transmission reliability without proportionally increasing device complexity, as the same monitoring infrastructure serves multiple functions
Solution Approach 2:
The UE autonomously performs beam quality assessment and makes transmission skipping decisions based on pre-configured beam correspondence relationships. This self-service approach allows the device to independently manage transmission reliability without requiring complex centralized control, thereby improving reliability while keeping device complexity manageable through autonomous operation
3Loss of energy
If autonomous transmission skipping is implemented without additional signaling, then signaling overhead is reduced, but measurement precision deteriorates due to limited feedback on actual transmission conditions
Solution Approach 1:
The system performs preliminary configuration of beam correspondence relationships between downlink and uplink beams before autonomous transmission skipping is needed. This pre-establishment of spatial relations allows the UE to make accurate transmission skipping decisions without requiring real-time signaling feedback, thereby reducing signaling overhead while maintaining sufficient measurement precision for reliable operation
Solution Approach 2:
The patent uses downlink beam quality measurements as a proxy or copy for assessing uplink beam conditions. By copying the spatial relationship information from downlink to uplink through beam correspondence, the system achieves adequate measurement precision for transmission decisions without requiring direct uplink feedback signaling, thus reducing signaling overhead while maintaining sufficient accuracy
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for transmission skipping based on a beam correspondence. One method (400) includes receiving (402) information corresponding to skipping uplink transmissions on at least one beam, at least one panel, or a combination thereof. The method (400) includes determining (404) whether a downlink transmission beam is blocked, a signal strength corresponding to the downlink transmission beam is less than a threshold signal strength, or a combination thereof. The method (400) includes, in response to the downlink transmission beam being blocked, the signal strength corresponding to the downlink transmission beam being less than the threshold signal strength, or a combination thereof, skipping (406) one or more uplink transmissions on the at least one beam, the at least one panel, or the combination thereof that corresponds to the downlink transmission beam based on the information corresponding to skipping uplink transmissions.