Sidelink Synchronization Using SyncRef SLSS Overlap Skipping
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Solution Overview
Problem
Synchronization in sidelink communication is problematic, particularly in receiving SLSS from a reference UE, where the UE may drop the SLSS transmission.
Innovation Solution
A synchronization method is developed to enhance sidelink communication by improving the reception of SLSS from a reference UE, ensuring stable and reliable synchronization signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE transmits SLSS in sidelink communication, then synchronization signal coverage is provided, but the UE may drop the SLSS transmission when receiving SLSS from a reference UE
Solution Approach 1:
The UE performs preliminary evaluation of the reference signal received power (RSRP) before transmitting SLSS. By measuring the RSRP of received SLSS from a reference UE and comparing it against a threshold, the UE determines in advance whether to transmit SLSS, preventing transmission drops and ensuring reliable synchronization signal provision.
2Measurement precision
If the UE receives SLSS from a reference UE, then synchronization is achieved, but the UE may drop the SLSS transmission
Solution Approach 1:
The UE implements a feedback mechanism where it measures the RSRP of received SLSS from a reference UE and uses this measurement to control its own SLSS transmission behavior. When the measured RSRP is above a threshold, the UE transmits SLSS; when below, it drops transmission. This feedback loop ensures that synchronization signal transmission is reliable and coordinated across UEs.
Data Source
AI summary
One embodiment of the present disclosure provides a method by which a UE performs communication. The method comprises the steps of: transmitting a first sidelink synchronization signal (SLSS) in a sidelink synchronization signal block (S-SSB) periodicity section; and searching for a synchronization reference (SyncRef) UE, wherein the step of searching for the reference UE comprises a step of receiving a second SLSS from the reference UE in a reception section, and on the basis of the S-SSB periodicity section and the reception section overlapping, the UE skips transmitting the first SLSS in the periodicity section.