SSB and CORESET Multiplexing in mmWave Resource Blocks
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Solution Overview
Problem
In wireless communications, especially in higher frequency bands like millimeter wave (mmWave) frequencies, the beam switching gap between synchronization signal blocks (SSBs) and control resource sets (CORESETs) is inefficient, leading to resource wastage and reduced utilization due to the increased sub-carrier spacing (SCS), which cannot be absorbed by the cyclic prefix, resulting in significant overhead.
Innovation Solution
Grouping SSBs and CORESETs in a single resource block in the time domain, allowing a single beam switching gap for both, and using a shared or different reference signal for channel estimation based on bandwidths, to reduce the number of beam switching gaps and enhance resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam switching gap is increased to handle higher SCS in mmWave communications, then reliability of signal transmission is improved, but resource utilization deteriorates due to significant overhead
Solution Approach 1:
The patent merges SSB and CORESET into a single resource block in the time domain, allowing them to share a common beam switching gap. This combination reduces the total number of beam switching gaps required, thereby improving resource utilization while maintaining transmission reliability for higher SCS in mmWave communications.
2Reliability
If multiple beam switching gaps are used for SSB and CORESET separately, then reliability of each signal is improved, but loss of time increases due to repeated switching operations
Solution Approach 1:
By combining SSB and CORESET in a single resource block, the patent enables both signals to be received within one beam switching gap. This eliminates the need for separate beam switching operations for each signal type, reducing total switching time while maintaining reception reliability.
3Productivity
If resource configuration is optimized for higher SCS, then productivity of data transmission is improved, but device complexity increases due to multiple reference signal configurations
Solution Approach 1:
The patent implements a universal reference signal configuration where a single reference signal serves both SSB and CORESET within the combined resource block. This multi-functional approach maintains high data transmission efficiency for higher SCS while reducing device complexity by eliminating the need for separate reference signal configurations.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling from a base station including a resource configuration indicating a resource block includes a synchronization signal block (SSB) and a control resource set (CORESET). The resource configuration may be based on a sub-carrier spacing (SCS) configuration. The UE may receive the SSB and the CORESET from the base station within the resource block and according to the resource configuration. The UE may receive one or more reference signals and may decode the SSB and the CORESET based on the resource configuration and the reference signals.