Sidelink Beam Management for FR2 Beam Alignment and Interference
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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 CSI frameworks and lack of reliable beam management techniques for device-to-device communication, leading to interference and suboptimal signal alignment.
Innovation Solution
Implement beam management procedures that involve beam sweeping, beam adjustment, and network-assisted or decentralized beam management techniques for sidelink UEs using multiple antennas, enhancing beam alignment and interference handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam management procedures are implemented for sidelink communications in high frequency ranges, then signal quality and beam alignment are improved, but system complexity and implementation challenges increase
Solution Approach 1:
The patent introduces a beam management report as an intermediary mechanism that mediates between the transmitting UE and receiving UE. This report carries beam-related information (such as beam direction, width, and alignment parameters) exchanged between UEs to coordinate beamforming operations, thereby improving signal quality while managing the complexity through standardized information exchange protocols
Solution Approach 2:
The patent implements feedback mechanisms where UEs exchange beam management reports containing channel state information and beam performance metrics. This feedback loop enables continuous optimization of beam alignment and direction, improving signal quality through adaptive beamforming while the structured feedback protocol helps manage system complexity
2Reliability
If multiple antennas are used for beamforming in sidelink communications, then beam alignment and interference handling are improved, but device complexity and resource requirements increase
Solution Approach 1:
The patent segments the beamforming function by assigning specific roles to different antennas and antenna elements. Each antenna contributes to forming specific beams in different spatial directions, and the beam management report tracks which antennas are active for which beams. This segmentation allows the system to manage multiple antennas systematically, improving beam alignment while controlling complexity through organized antenna utilization
3Productivity
If network-assisted beam management procedures are implemented, then beam management efficiency is improved, but dependency on network infrastructure increases
Solution Approach 1:
The patent implements dynamic beam management where UEs can operate in different modes: network-assisted mode when available for improved efficiency, and autonomous mode when network coverage is limited or unavailable. The beam management report structure is designed to work effectively in both modes, allowing the system to adapt dynamically between network-dependent and independent operation based on coverage and performance requirements
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 quality and reduces interference by optimizing beamforming for sidelink communications, ensuring efficient data transmission and reception in high frequency bands.
Implementation Method 1
direct communication between user devices over a sidelink using 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.