SSB and CORESET Positioning for NR Rel-15 Channel Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the NR Rel-15 system, the large time domain distance between the SSB and the CORESET of RMSI associated with the SSB makes it difficult for network devices to transmit a complete SSB and PDCCH in an available channel, hindering the discovery and access of unauthorized frequency band cells.
Innovation Solution
The method involves determining the time domain candidate position of the CORESET of RMSI associated with the SSB based on a time domain parameter impact factor, allowing the SSB and PDCCH to be transmitted within one time domain interval, thereby ensuring complete transmission within an available channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the time domain distance between SSB and CORESET of RMSI is increased according to NR Rel-15 specification, then the SSB and CORESET can be transmitted in different available channels, but the complete transmission of SSB and PDCCH in one available channel cannot be achieved
Solution Approach 1:
The patent changes the time domain parameter relationship between SSB and CORESET by introducing a new determination method where the time domain candidate position of CORESET is determined based on the time domain parameter impact factor of SSB. This parameter change enables both SSB and CORESET to be transmitted within one time domain interval, achieving complete transmission in one available channel while maintaining transmission flexibility.
2Reliability
If the time domain interval between SSB and CORESET is reduced to fit in one available channel, then complete transmission is achieved, but the transmission scheduling flexibility is reduced
Solution Approach 1:
The patent introduces a parameter determination mechanism where the time domain candidate position of CORESET is dynamically determined based on SSB's time domain parameter impact factor. This approach maintains scheduling flexibility by allowing adaptive parameter selection while ensuring the time domain interval fits within one available channel for complete transmission.
Solution Approach 2:
The patent implements a dynamic determination method where the time domain relationship between SSB and CORESET is not fixed but determined based on the actual time domain parameter impact factor of SSB. This dynamic approach allows the system to adapt to different channel conditions and SSB positions while maintaining complete transmission within one available channel.
Data Source
AI summary
The present application discloses an information processing method, including: the terminal device detects a synchronous signal block (SSB) and a physical downlink control channel (PDCCH) of the RMSI in a control resource set of the remaining minimum system information (CORESET of the RMSI) associated with the SSB; information about a time domain candidate position of the CORESET of the RMSI associated with the SSB is determined based on a time domain parameter impact factor of the SSB. The present application also discloses another information processing method, device and storage medium.