SSB Multiplexing with CORESETs and SIBs for UE Power Savings
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently multiplexing synchronization blocks (SSBs), control resource sets (CORESETs), and system information blocks (SIBs) in next-generation wireless communication networks, particularly in high-frequency bands like millimeter wave (mmWave) frequencies.
Innovation Solution
The proposed solution involves using time-division multiplexing (TDM) to transmit SSBs in groups spaced apart by gap periods, and configuring/scheduling CORESETs and SIBs within these gap periods. This allows for efficient multiplexing of SSBs with CORESETs and SIBs, using different subcarrier spacings for SSBs and CORESET/SIBs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If SSBs are transmitted continuously without gap periods, then synchronization coverage is maintained, but UE power consumption increases due to continuous monitoring
Solution Approach 1:
The patent implements periodic transmission of SSB bursts separated by gap periods, where SSBs are transmitted in concentrated bursts rather than continuously. This periodic structure allows UEs to monitor for SSBs only during expected burst windows and enter low-power states during gap periods, reducing overall power consumption while maintaining synchronization coverage through regular periodic updates.
Solution Approach 2:
The patent segments the SSB transmission into multiple bursts within a periodic window, with each burst containing one or more SSBs. This segmentation allows the system to concentrate synchronization signals in specific time intervals rather than spreading them continuously, enabling UEs to efficiently monitor during burst periods and conserve power during gap periods while still achieving reliable synchronization.
2Productivity
If SSBs are multiplexed with CORESETs and SIBs in the same time-frequency resources, then resource efficiency improves, but signal interference and detection reliability deteriorate
Solution Approach 1:
The patent segments the time-frequency resources by dividing them into distinct regions: some resources are dedicated exclusively to SSB transmissions, while other resources are dedicated to CORESETs and SIBs. This resource segmentation eliminates interference between these different signal types while maintaining high resource efficiency through structured allocation patterns that minimize wasted resources.
Solution Approach 2:
The patent applies local quality by assigning different resource characteristics to different signal types. SSB resources are configured with specific time-frequency locations and transmission parameters optimized for synchronization, while CORESET and SIB resources have different configurations optimized for control information. This localized optimization ensures each signal type receives appropriate resources without interfering with others.
3Reliability
If multiple SSBs are transmitted in the same slot, then synchronization coverage is enhanced, but UE processing complexity increases
Solution Approach 1:
The patent segments multiple SSBs into separate transmission bursts rather than transmitting them all simultaneously in the same slot. Each burst contains a manageable number of SSBs transmitted in sequential time intervals, allowing UEs to process SSBs in manageable batches rather than handling multiple SSBs concurrently, thus reducing processing complexity while maintaining comprehensive synchronization coverage.
Solution Approach 2:
The patent transmits multiple SSBs in periodic bursts with regular intervals between them. This periodic transmission pattern allows UEs to process SSBs in a systematic, time-ordered manner rather than dealing with simultaneous transmissions, reducing processing complexity while ensuring comprehensive synchronization coverage through repeated periodic opportunities for signal detection.
Data Source
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AI summary
Wireless communications systems and methods related to multiplexing of synchronization blocks (SSBs), control resource sets (CORESETs), and system information blocks (SIBs) are provided. A user equipment (UE) receives, from a base station (BS), a first SSB of a first group of SSBs of an SSB burst set, wherein the first group of SSBs and a second group of SSBs of the SSB burst set are spaced apart in time by a group of CORESETs and SIBs. The group of CORESETs and SIBs comprises one CORESET and at least one SIB for each SSB of the first group of SSBs. The UE receives, in a first CORESET of the group of CORESETs and SIBs based on the first SSB, SIB scheduling information. The UE receives, based on the SIB scheduling information, a first SIB of the group of CORESETs and SIBs.