PUSCH Repetition Frequency Hopping for Uplink Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication technologies, such as LTE and NR, face challenges in enhancing the reliability and robustness of physical uplink shared channel (PUSCH) communications due to interference and blockages, which can lead to dropped connections.
Innovation Solution
Implementing frequency hopping during PUSCH repetition by varying transmission parameters, including spatial relationships, uplink beams, and resource block offsets, to increase the reliability and robustness of communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency hopping is implemented during PUSCH repetition with varied transmission parameters, then reliability and robustness of communication are improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent implements dynamic frequency hopping where transmission parameters (frequency offsets, spatial relationships, uplink beams) are varied across different repetition sets. This dynamic adaptation allows the system to respond to changing channel conditions, thereby improving reliability while the complexity is managed through standardized hopping patterns and parameter relationships
Solution Approach 2:
The patent systematically changes multiple transmission parameters including frequency domain resource assignment offsets, spatial relationship indices, and uplink beam indices across different repetition sets. These parameter variations enable the system to mitigate interference and blockages by transmitting repetitions on different frequency resources and spatial paths, improving communication reliability
2Reliability
If multiple sets of transmission parameters are used for repetition transmissions, then robustness against interference and blockages is improved, but processing time and computational overhead increase
Solution Approach 1:
The patent pre-configures multiple sets of transmission parameters including frequency offsets, spatial relationships, and uplink beam indices before actual PUSCH transmission. These parameter sets are prepared in advance based on channel conditions and repetition requirements, allowing the UE to quickly switch between them during transmission without real-time computation, thus reducing processing time while maintaining robustness
Solution Approach 2:
The patent divides the PUSCH repetition transmission into multiple sets, where each set uses a different combination of transmission parameters. This segmentation allows the system to distribute the computational load across predefined parameter sets rather than computing all parameters simultaneously, reducing instantaneous processing requirements while achieving diverse transmission paths for improved robustness
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a first set of repetitions of a physical uplink shared channel (PUSCH) communication using a plurality of sets of values for a set of transmission parameters on a first set of frequencies using frequency hopping; and transmit a second set of repetitions of the PUSCH communication using the plurality of sets of values for the set of transmission parameters on a second set of frequencies using frequency hopping. Numerous other aspects are provided.