UE PUSCH Aggregation Control via Parameter Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing multi-PUSCH scheduling and PUSCH aggregation/repetition due to complexities in DCI formats and resource allocation configurations, leading to increased control signaling overhead and potential transmission reliability issues.
Innovation Solution
The proposed solution involves configuring the UE with either multi-PUSCH functionality or PUSCH aggregation/repetition functionality, but not both concurrently, to simplify resource allocation and improve transmission efficiency by using specific parameter configurations such as pusch-TimeDomainAllocationListForMultiPUSCH-r16 and pusch-AggregationFactor, ensuring clear interpretation and implementation of time domain resource allocations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-PUSCH scheduling and PUSCH aggregation/repetition are implemented with complex DCI formats and resource allocation configurations, then transmission flexibility and coverage are improved, but control signaling overhead increases and transmission reliability deteriorates
Solution Approach 1:
The patent extracts the aggregation number indication from the complex DCI format by introducing a separate aggregation factor field. This separates the resource allocation information from the repetition control information, reducing the complexity of DCI parsing and lowering control signaling overhead while maintaining transmission flexibility.
Solution Approach 2:
The resource allocation configuration is segmented into distinct parameters: time domain resource allocation, frequency domain resource allocation, and aggregation factor. This segmentation allows each parameter to be independently configured and processed, reducing overall control signaling complexity while enabling flexible transmission schemes.
2Adaptability or versatility
If multiple PUSCH configurations are supported simultaneously, then transmission versatility is improved, but device complexity and interpretation ambiguity increase
Solution Approach 1:
The patent introduces dynamic switching between multi-PUSCH scheduling and PUSCH aggregation/repetition modes based on network configuration. The UE can adaptively adjust its operation mode according to the configured aggregation factor and DCI format, reducing configuration complexity while maintaining transmission versatility.
Solution Approach 2:
The aggregation factor serves as a key parameter that changes the operational mode of the UE. By varying this parameter, the system can switch between different transmission schemes (multi-PUSCH vs. aggregation/repetition), enabling versatile transmission while simplifying UE interpretation through a unified parameter-based control mechanism.
3Reliability
If aggregation number indication is added to DCI format, then transmission reliability is improved, but DCI format complexity and processing overhead increase
Solution Approach 1:
The aggregation factor acts as an intermediary parameter between the network scheduler and the UE transmitter. It conveys the aggregation number information in a simplified manner, improving transmission reliability through explicit aggregation control while avoiding the need for complex DCI format modifications.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A User Equipment, UE, receives a message including a first parameter indicative of a list of entries associated with time resource allocation for multiple PUSCHs (1905). The list does not include a third parameter for configuring a number of repetitions. The UE does not expect the message to include a second parameter that configures and/or indicates an aggregation factor. The UE receives a Downlink Control Information, DCI, indicative of a first entry in the list (1910). The UE performs one or more transmissions on one or more time occasions (1915). A number of time occasions of the one or more time occasions is based on a number of time resource allocations of the first entry.