URLLC UCI Multiplexing Location on eMBB PUSCH
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Solution Overview
Problem
Current communication systems face limitations in flexibility and efficiency, particularly in determining the ultra-reliable low-latency communication (URLLC) uplink control information (UCI) multiplexing location on enhanced mobile broadband (eMBB) physical uplink shared channels (PUSCH), which affects communication capacity, speed, and reliability.
Innovation Solution
A user equipment (UE) and base station (gNB) are equipped with higher layer processors and transmitting/receiving circuitry to determine and perform multiplexing of URLLC UCI on eMBB PUSCH, utilizing overlapping symbols, sub-slots, and demodulation reference signals (DMRS) to optimize UCI multiplexing, ensuring timely and reliable feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If URLLC UCI is multiplexed on eMBB PUSCH using conventional methods, then communication capacity is maintained, but communication flexibility and efficiency are limited
Solution Approach 1:
The patent changes the parameter of multiplexing location determination by introducing new rules based on overlapping symbol detection, sub-slot identification, and DMRS position selection. These parameter changes enable flexible adaptation to different URLLC and eMBB scheduling scenarios while maintaining clear determination procedures, thus improving communication flexibility without excessive complexity
Solution Approach 2:
The patent implements dynamic multiplexing location determination where the UCI multiplexing location adapts based on real-time detection of overlapping symbols between URLLC PUCCH and eMBB PUSCH. The system dynamically selects the starting symbol within the overlapping region and determines the number of symbols based on UCI payload size and DMRS configuration, enabling flexible response to varying communication conditions
2Reliability
If URLLC UCI multiplexing location is determined with precise control, then ultra-reliable low-latency requirements are met, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by detecting overlapping symbols between URLLC PUCCH and eMBB PUSCH before determining the multiplexing location. The system pre-identifies the overlapping region, pre-determines the starting symbol, and pre-calculates the number of symbols needed based on UCI payload size. This preliminary preparation ensures reliable URLLC transmission without excessive complexity during actual transmission
Solution Approach 2:
The patent segments the multiplexing location determination into distinct components: detecting overlapping symbols, identifying the starting symbol within the overlap, calculating the number of symbols based on UCI payload, and selecting DMRS positions. This segmentation allows each aspect to be handled independently with clear rules, ensuring reliability while managing system complexity through modular processing
3Productivity
If conventional communication structures are used, then system simplicity is maintained, but communication efficiency and capacity are limited
Solution Approach 1:
The patent implements universality by creating a multiplexing location determination mechanism that works across different URLLC and eMBB scheduling scenarios. The same framework handles various overlapping configurations, different UCI payload sizes, multiple DMRS positions, and different numerologies. This universal approach improves communication efficiency by providing a unified solution rather than requiring separate mechanisms for each scenario, while managing complexity through standardized procedures
Data Source
AI summary
A user equipment (UE) is described. The UE includes a higher layer processor configured to determine a multiplexing location of an ultra-reliable low-latency communication (URLLC) uplink control information (UCI) on an enhanced mobile broadband (eMBB) physical uplink shared channel (PUSCH). The UE also includes transmitting circuitry configured to perform multiplexing of the URLLC UCI on the eMBB PUSCH.