Wireless Signal Transmission Using CORESET and SSB Selection
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in signal transmission and reception procedures, particularly in managing multiple control resource sets and synchronization signal blocks, which affect the reliability and efficiency of data transmission in diverse communication scenarios.
Innovation Solution
A method and apparatus for efficiently receiving and transmitting wireless signals by configuring and selecting control resource sets (CORESETs) associated with synchronization signal blocks (SSBs), using a cyclic redundancy check (CRC) scrambled with a group-radio network temporary identifier (G-RNTI) to indicate transmission configuration index (TCI) states, allowing for optimized selection and reception of physical downlink shared channels (PDSCH) based on SSB measurements and thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple CORESETs are configured for different SSBs to improve reception reliability, then the reliability of signal transmission is improved, but the device complexity and resource management overhead increase
Solution Approach 1:
The patent divides the control resource space into multiple CORESETs, each associated with specific SSBs. This segmentation allows the UE to selectively monitor only the CORESETs relevant to the SSBs it has measured, rather than monitoring all possible CORESETs, thus improving reliability while managing complexity through structured division.
Solution Approach 2:
The patent performs SSB measurements and selects preferred SSBs before proceeding to PDCCH monitoring. This preliminary action allows the UE to pre-determine which CORESETs are relevant, reducing the complexity of real-time resource management while ensuring reliable reception by focusing on the most suitable control resources.
2Reliability
If the UE monitors all PDCCH candidates across all CORESETs to ensure no control information is missed, then the reliability of control information reception is improved, but the processing time and energy consumption increase
Solution Approach 1:
The patent applies local quality by making the PDCCH monitoring behavior adaptive to local conditions - specifically, the UE monitors PDCCH candidates only on CORESETs associated with selected SSBs based on measurement results. This localized approach ensures reliable reception of control information while avoiding unnecessary monitoring of irrelevant CORESETs, thus reducing time consumption.
3Manufacturing precision
If the system uses detailed SSB measurement thresholds and selection criteria to optimize PDSCH reception, then the manufacturing precision of communication parameters is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The patent implements dynamic parameter configuration where SSB measurement thresholds and CORESET associations are adaptable based on channel conditions and service requirements. This dynamic approach allows precise optimization of communication parameters while simplifying the measurement process through automated adaptation rather than requiring manual fine-tuning of complex thresholds.
Data Source
AI summary
According to an embodiment of the present invention, a UE may receive configuration information for CORESETs associated with different SSBs respectively, select at least one CORESET, and receive DCI by monitoring PDCCH candidates on the selected at least one CORESET. A CRC of the DCI can be scrambled with a G-RNTI selected by the UE in accordance with an identifier of a specific service to receive. Two or more of the CORSETs may be commonly associated with the same G-RNTI.