Sidelink Beam Management Reporting for FR2 Beam Alignment
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing beams effectively over sidelinks, particularly in high frequency ranges like FR2, due to limited antenna configurations and lack of reliable beam management techniques, leading to interference and suboptimal signal transmission.
Innovation Solution
Implement beam management procedures for sidelink communication using multiple antennas, including beam sweeping, beam adjustment, and network-assisted or decentralized beam management, utilizing sidelink feedback channels and inter-UE coordination techniques to enhance beam alignment and interference handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is used in high frequency ranges (FR2) for sidelink communication, then signal transmission quality is improved, but device complexity increases due to limited antenna configurations and lack of reliable beam management techniques
Solution Approach 1:
The patent introduces a base station as an intermediary entity that assists sidelink UEs in beam management procedures. The base station provides coordination, feedback, and control signals to help UEs establish and maintain beams in FR2, reducing the complexity burden on the UEs themselves while still enabling reliable high-frequency communication.
Solution Approach 2:
The patent employs beam sweeping procedures where UEs systematically change beam directions and parameters to find optimal beam configurations. By dynamically adjusting beam parameters under base station coordination, the system achieves reliable FR2 transmission without requiring permanently complex antenna configurations at the UE level.
2Productivity
If multiple antennas are used for beamforming in sidelink communication, then communication efficiency is improved, but interference management becomes more difficult
Solution Approach 1:
The patent implements feedback mechanisms where receiving UEs provide beam management feedback to transmitting UEs through the sidelink interface, coordinated by the base station. This feedback enables UEs to adjust their beams to minimize interference while maintaining efficient communication, allowing multiple antennas to work together constructively rather than creating harmful interference patterns.
3Ease of operation
If autonomous beam management is implemented without network assistance, then device autonomy is improved, but beam alignment accuracy deteriorates
Solution Approach 1:
The patent employs preliminary beam sweeping and measurement procedures where UEs explore different beam directions and report measurements to the base station before actual data transmission begins. This preliminary coordination phase allows the base station to provide accurate beam alignment guidance, ensuring high measurement precision while maintaining reasonable device autonomy during the actual communication phase.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves signal transmission quality and reduces interference by optimizing beam alignment and management across sidelink devices, enhancing communication efficiency and reliability in high frequency bands.
Implementation Method 1
two or more antennas for focusing a wireless signal or beam by a transmitting device towards a receiving device, which is also known as beamforming
Data Source
AI summary
A user device, UE, for a wireless communication network is described. The UE is a sidelink, SL, UE, and is to communicate with one or more further SL-UEs over a sidelink, SL, using more than one antenna or antenna element. The UE is served by a base station of the wireless communication network. The UE is to be assisted by the base station for one or more beam management procedures.