NR SRS Resource Reuse for CSI and Beam Management
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Solution Overview
Problem
Existing 3GPP NR systems face inefficiencies in resource utilization and waste due to the limited reuse of sounding reference signal (SRS) resource sets for multiple usages, leading to suboptimal channel state information acquisition and beam management.
Innovation Solution
The method determines whether SRS resources are used for multiple usages and adjusts the bit width and coding mode of the SRS resource indicator (SRI) to enable the same SRS resource set to be used for multiple purposes, such as channel state information acquisition and beam management, thereby optimizing resource utilization and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If SRS resource sets are configured for single usage only, then the configuration is simple and easy to manage, but resource utilization is low and causes waste
Solution Approach 1:
The patent enables a single SRS resource set to serve multiple usage scenarios (codebook PUSCH CSI acquisition, nonCodebook PUSCH CSI acquisition, and beam management) by introducing usage indication information in the configuration. This multi-functionality approach allows the same physical resources to be allocated for different purposes, thereby improving resource utilization efficiency while maintaining manageable configuration complexity through structured information fields.
2Reliability
If multiple SRS resource sets are configured for different usages, then each usage has dedicated resources ensuring reliability, but resource waste increases and utilization decreases
Solution Approach 1:
The patent implements multi-functionality by allowing one SRS resource set to be configured with multiple usage types through usage indication information. This enables the system to maintain reliable CSI acquisition for different PUSCH types and beam management functions while sharing the same physical SRS resources, thereby eliminating resource waste associated with dedicated separate resource sets for each usage scenario.
3Productivity
If SRS resource sets are reused for multiple usages, then resource utilization improves, but the bit width and coding mode of SRI become more complex to determine
Solution Approach 1:
The patent addresses parameter determination complexity by establishing clear rules for adjusting SRI bit width and coding mode based on the number of SRS resources and configured usage types. When multiple usages are detected, the system dynamically adjusts these parameters according to predefined relationships, ensuring efficient resource utilization while maintaining manageable complexity through systematic parameter adjustment guidelines.
Data Source
AI summary
The present application provides an information transmission method and apparatus, and a storage medium. The method includes: determining whether at least one sounding reference signal (SRS) resource is used for multiple usages; determining, according to a first result, a bit width and/or a coding mode of SRS resource indicator (SRI), where the SRI is used to indicate an SRS resource corresponding to transmission of a physical uplink shared channel (PUSCH); the first result is that the at least one SRS resource is used for multiple usages, or, no SRS resource is used for multiple usages. Therefore, when transmitting an SRS of the SRS resource set, the terminal will perform the SRS transmission according to requirements of multiple usages, so the network device can use the same SRS resource set to realize the measurement of multiple usages, thus improving resource utilization and reducing resource waste.