Aligning SSB Indications in RMSI and RRC Signaling
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Solution Overview
Problem
In new radio (NR) systems, synchronization signal blocks (SSBs) indicated by Remaining Minimum System Information (RMSI) and Radio Resource Control (RRC) signaling often disagree, leading to differing understandings among terminal devices about physical channel resource allocation, resulting in resource wastage and increased system complexity.
Innovation Solution
Ensuring that SSB-related information indicated by RMSI and RRC signaling is at least partially the same, thereby aligning terminal devices' understandings of the association relationship between physical channels and SSBs, particularly during inter-cell handover, secondary cell configuration, or primary secondary cell configuration, to avoid resource wastage and simplify system resource configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If RMSI and RRC signaling indicate different SSBs, then terminal devices can independently interpret SSB information according to their states, but resource allocation becomes inconsistent and system complexity increases
Solution Approach 1:
The patent merges the SSB indication functions of RMSI and RRC signaling by ensuring they indicate the same SSBs. This unification eliminates the inconsistency between different signaling methods while maintaining terminal device adaptability, thereby reducing system resource configuration complexity.
Solution Approach 2:
The patent changes the parameter consistency between RMSI and RRC signaling by configuring them to indicate identical SSB information. This parameter alignment ensures that terminal devices in different states receive consistent SSB indications, resolving the contradiction between adaptability and system complexity.
2Adaptability or versatility
If RMSI and RRC signaling indicate different SSBs, then different terminal device states can have different SSB understandings, but physical channel resource allocation becomes inconsistent leading to resource waste
Solution Approach 1:
The patent merges the SSB indications from RMSI and RRC signaling to ensure consistency. By making both signaling methods indicate the same SSBs, the system eliminates resource allocation inconsistencies and prevents resource wastage while preserving terminal device adaptability through proper state-specific interpretation.
Solution Approach 2:
The patent implements feedback mechanisms where the network configures RMSI and RRC signaling to provide consistent SSB information. This feedback ensures that terminal devices receive aligned indications regardless of their state, preventing resource waste from inconsistent allocations.
3Adaptability or versatility
If RMSI and RRC signaling indicate different SSBs, then terminal devices can operate in different states with different configurations, but the association relationship between physical channels and SSBs becomes ambiguous
Solution Approach 1:
The patent merges the SSB indication information in RMSI and RRC signaling to ensure they convey the same SSB associations. This merging maintains clear association relationships between physical channels and SSBs while allowing terminal devices to operate in different states with appropriate configurations.
Solution Approach 2:
The patent changes the parameter consistency by aligning SSB indication parameters in both signaling methods. This parameter alignment ensures that the association relationships between physical channels and SSBs remain clear and unambiguous across different terminal device states.
Data Source
AI summary
Embodiments of this disclosure provide a signal processing method and device. The method includes: transmitting first information via RMSI, and/or transmitting second information via RRC signaling; wherein SSB related information indicated by the first indication information is at least partially same as SSB related information indicated by the second indication information.