Beam Management Method Reducing Overhead in High-Speed Wireless
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Solution Overview
Problem
Traditional beam sweeping technologies in high-frequency transmission systems require numerous reference signals and high computational complexity, leading to significant overhead and delay, especially in scenarios with large antenna arrays and rapid channel changes.
Innovation Solution
A method for beam management that involves receiving and determining beam information from terminals, including location and quality information, to optimize transmission beams based on network deployment data, reducing the need for extensive beam sweeping by predicting optimal beam directions and trajectories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional beam sweeping technology is used to obtain optimal beams in multiple beam directions, then beam quality can be improved, but the number of required reference signals increases, leading to greater overhead and higher computational complexity
Solution Approach 1:
The patent applies preliminary action by pre-determining beam management parameters (such as beam directions, reference signal configurations, and measurement timing) based on terminal location information and network deployment information before actual beam sweeping occurs. This pre-planning reduces the real-time computational burden and reference signal overhead while maintaining beam quality optimization.
Solution Approach 2:
The patent uses copying by creating virtual beam patterns and reference signal configurations based on stored network deployment information and terminal location data, rather than performing exhaustive physical beam sweeping. This allows the system to determine optimal beams through information processing rather than exhaustive measurement, reducing computational complexity.
2Measurement precision
If the number of antennas is increased to strengthen beam directivity, then beam quality improves, but the number of beam directions increases, requiring more reference signals and increasing overhead
Solution Approach 1:
The patent pre-determines which beam directions require reference signals based on terminal location information and network deployment information. By calculating optimal beam directions in advance, the system avoids transmitting reference signals in all possible directions, thereby reducing the number of reference signals required while maintaining strong beam directivity where needed.
Solution Approach 2:
The patent applies local quality by concentrating reference signal transmission and beamforming resources on specific local directions where terminals are located, rather than uniformly distributing resources across all beam directions. This localized approach maintains high beam directivity for active terminals while reducing overall reference signal overhead.
3Measurement precision
If comprehensive beam sweeping is performed to adapt to rapid channel changes, then beam management accuracy improves, but time delay increases
Solution Approach 1:
The patent performs preliminary determination of beam management parameters using stored network deployment information and terminal location data before actual channel changes occur. This pre-calculation allows the system to quickly adapt to channel changes without performing time-consuming comprehensive beam sweeping, thereby reducing time delay while maintaining beam management accuracy.
Solution Approach 2:
The patent implements feedback mechanisms where terminal location information is continuously monitored and used to update beam management decisions. This feedback loop allows the system to adapt to rapid channel changes efficiently by making targeted adjustments based on location changes rather than performing complete beam sweeping cycles.
Data Source
AI summary
Provided are a beam management method and apparatus, and a network side device, a terminal and a storage medium. The method includes receiving beam information for beam management sent by a terminal, wherein the beam information comprises uplink beam information or downlink beam information; determining specified information for beam management according to the beam information, wherein the specified information comprises terminal location information and/or beam quality information; and determining transmission beams for signal transmission and/or a trend of transmission beam change according to the specified information and network deployment information, wherein the signal transmission comprises uplink signal transmission or downlink signal transmission. The great overhead and delay problems caused by the frequent beam sweeping process in high-speed occasions can be solved, the beam management strategy can be optimized and beam sweeping time and beam overhead can be saved.