Uplink Beam Switching for Occlusion Management in High-Frequency Communication
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Solution Overview
Problem
In high-frequency band communication, uplink transmission is often affected by occlusion due to the use of narrow beams, leading to reduced communication quality, which cannot be mitigated by increasing power alone.
Innovation Solution
A method and apparatus for controlling uplink transmission by transmitting indication information to switch the uplink beam to one with less or no occlusion, determined based on position relationships and power headroom reports, allowing the terminal device to adjust its beam configuration accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If narrow beam is used in high-frequency band communication, then communication rate requirement is satisfied, but communication quality is easily affected by occlusion
Solution Approach 1:
The patent implements dynamic beam switching where the terminal device can switch between first uplink beam and second uplink beam based on real-time occlusion detection. The network device dynamically adjusts beam configuration according to communication conditions, transforming the static beam system into a dynamic one that adapts to occlusion events to maintain communication quality while preserving high data rates.
Solution Approach 2:
The patent changes the beam parameter (beam direction and configuration) based on occlusion status. When occlusion is detected, the system switches from the first uplink beam to the second uplink beam with different parameters, thereby avoiding the harmful effect of occlusion on communication quality while maintaining the high-frequency band's high rate capability.
2Reliability
If power is increased to compensate for occlusion, then transmission distance is maintained, but energy consumption increases and communication quality cannot be reliably improved
Solution Approach 1:
The patent extracts the harmful effect of occlusion by switching to an alternative beam path that avoids the occluded area. Instead of increasing power to compensate for signal loss caused by occlusion, the system takes out the problematic beam configuration and replaces it with a cleaner path, thereby maintaining transmission quality without the energy penalty of high power transmission.
3Reliability
If beam switching is implemented to avoid occlusion, then communication quality is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device detects occlusion status and provides information to the network device, which then instructs the terminal to switch beams. This closed-loop feedback system automates the beam switching process, reducing the complexity burden on individual components while maintaining high communication quality through coordinated beam management.
Data Source
AI summary
A method for controlling uplink transmission, performed by a network device, and the method including transmitting first indication information, wherein the first indication information is used for indicating uplink switch information.