PUSCH Transmission Using CORESET-Linked SRS Resource Selection
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Solution Overview
Problem
When multiple SRS resource sets are configured, the SRI in DCI or CG configuration cannot determine which SRS resource set to use, leading to incorrect transmission of the physical uplink shared channel (PUSCH) and reduced transmission performance.
Innovation Solution
A method to determine the SRS resource set indicated by the SRI in DCI or CG configuration by establishing an association based on indication information or predefined rules using specified parameters such as CORESETPoolIndex, CORESET, TCI state, and RRC parameters, ensuring correct transmission of PUSCH.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SRS resource sets are configured to increase transmission flexibility, then adaptability is improved, but the ability to determine which SRS resource set to use deteriorates
Solution Approach 1:
The patent introduces CORESET as an intermediary element that links DCI to specific SRS resource sets. The CORESET contains an SRS resource set indicator that acts as a mediator to resolve the ambiguity of which SRS resource set to use when multiple are configured, thereby maintaining transmission flexibility while solving the determination difficulty.
Solution Approach 2:
The patent segments the SRS resource sets and associates each with specific CORESETs. By dividing the SRS resource sets into groups linked to different CORESETs, the system enables precise determination of which SRS resource set to use based on the CORESET indicated in the DCI, thus resolving the ambiguity while preserving adaptability.
2Reliability
If multiple SRS resource sets are configured to improve transmission performance, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent makes the CORESET structure multi-functional by enabling it to serve both as a control resource indicator and as a pointer to specific SRS resource sets. This universal approach allows the existing CORESET mechanism to handle multiple SRS resource sets without adding separate complex configuration structures, thereby improving reliability while controlling device complexity.
3Productivity
If SRI is used to indicate SRS resource for PUSCH transmission to improve transmission efficiency, then productivity is improved, but ambiguity in SRS resource set selection worsens
Solution Approach 1:
The patent adds another dimension to the SRI indication mechanism by incorporating CORESET-based SRS resource set indicators. Instead of relying solely on the SRI field, the system uses the CORESET dimension to provide additional identification information, thereby resolving the ambiguity in SRS resource set selection while maintaining transmission efficiency.
Data Source
AI summary
The present disclosure relates to the technical field of communications, and discloses a transmission method for a physical uplink shared channel, a device, and a storage medium, which are used to solve problems that in the related art, correct transmission of the PUSCH cannot be effectively ensured, and a transmission performance of the PUSCH is reduced. The method comprises: in a case that a terminal device detects or obtains a sounding reference signal resource indicator (SRI) included in a CG configuration in DCI, determining an association between a specified parameter and a sounding reference signal (SRS) resource set based on indication information of a network device or a predefined rule; determining the SRS resource set based on the association; determining an SRS resource based on the SRS resource set; and transmitting the PUSCH based on the SRS resource. In the implementation, the SRS resource set for transmitting the PUSCH is determined by adopting an indication of a network side or the predefined rule, thereby ensuring the correct transmission of the PUSCH, and improving the transmission performance of the PUSCH.