Sidelink Beam Configuration Using Reference Signals for Direct UE Links
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Solution Overview
Problem
Current communication systems lack a specific beam communication process for sidelink (SL) transmission, preventing effective beam communication support.
Innovation Solution
A method and apparatus for configuring SL beams by determining and exchanging SL beam configurations, including indication information and reference signals, between terminal devices to facilitate beam communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam communication is introduced for SL transmission, then data transmission rate is improved and interference is reduced, but device complexity increases due to additional beam configuration processes
Solution Approach 1:
The patent applies universality by using existing uplink beam configuration mechanisms and reference signal processes for sidelink beam communication. The same beam indication information, reference signals (SRS, SSB, CSI-RS), and configuration procedures are reused across different communication scenarios (UL and SL), avoiding the need to design separate beam management systems and reducing overall device complexity while maintaining high data transmission rates
Solution Approach 2:
The patent employs copying by replicating the uplink beam configuration process for sidelink communication. The beam indication information structure, reference signal definitions, and configuration messaging formats are copied from uplink procedures and adapted for sidelink use, allowing terminal devices to leverage existing knowledge and implementation frameworks rather than developing new complex beam management mechanisms from scratch
2Reliability
If specific beam communication process is introduced for SL transmission, then communication quality is improved, but ease of operation deteriorates due to additional configuration steps
Solution Approach 1:
The patent merges the beam configuration process into existing sidelink resource allocation and connection establishment procedures. Beam indication information is combined with resource allocation messages, and reference signal configurations are integrated into existing sidelink protocol exchanges, allowing beam communication to be established through unified procedures rather than separate complex configuration steps, thereby improving communication quality while maintaining ease of operation
Solution Approach 2:
The patent applies preliminary action by pre-configuring beam parameters, reference signal resources, and indication information formats before sidelink communication begins. Terminal devices prepare beam configuration data structures and reference signal definitions in advance based on capability exchanges, enabling rapid beam establishment during actual communication without requiring complex real-time configuration negotiations, thus improving both communication quality and operational simplicity
Data Source
AI summary
The disclosure provides an SL beam configuration method, apparatus, device and storage medium. In one example, the SL beam configuration method includes: determining at least one SL beam configuration, the SL beam configuration including: first indication information indicating the SL beam, and a reference signal correspondingly carried by the SL beam; sending the at least one SL beam configuration to the second terminal device, and the first terminal device communicates with the second terminal device based on the SL; the SL beam is sent to the second terminal device based on the SL beam indicated in at least one SL beam configuration. The disclosed method provides a method for configuring the SL beam between the terminal devices directly connected to the SL, so that the SL transmission can support beam communication.