SRS Resource Set Selection by DCI Format
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently determining and utilizing sounding reference signal (SRS) resource sets for downlink control information, which affects the performance of uplink and downlink communications.
Innovation Solution
The method involves receiving and transmitting SRS transmissions based on radio resource control and downlink control information signaling, allowing for the identification and utilization of specific SRS resource sets to enhance communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SRS resource sets are configured for different DCI formats, then the adaptability and precision of SRS transmission are improved, but the device complexity and configuration overhead increase
Solution Approach 1:
The patent segments SRS resource sets into multiple distinct configurations (first SRS resource set and second SRS resource set), each associated with specific DCI formats. This segmentation allows the system to tailor SRS transmission parameters to different communication scenarios without requiring a single complex configuration to handle all cases, thus improving adaptability while managing complexity through structured division.
Solution Approach 2:
The patent implements dynamic selection of SRS resource sets based on the received DCI format. The UE dynamically determines which SRS resource set to use by detecting the DCI format type, allowing the system to adapt SRS transmission characteristics in real-time according to the specific downlink control information requirements, thereby improving versatility without permanent complexity increase.
2Measurement precision
If SRS resource set determination is based on DCI format, then the measurement precision and transmission accuracy are improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The patent uses DCI format types as distinct identifiers (analogous to color codes) that the UE can detect to determine which SRS resource set to apply. Each DCI format serves as a recognizable signal pattern that directly maps to a specific SRS resource set configuration, enabling precise identification without requiring complex measurement procedures. The format-based identification simplifies the detection process while maintaining high precision.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive first signaling and second signaling, wherein the first signaling is radio resource control signaling and the second signaling is downlink control information signaling, and wherein the first signaling and the second signaling include a first configuration information associated with identifying a first sounding reference signal (SRS) resource set and a second configuration information associated with identifying a second SRS resource set. The UE may transmit an SRS associated with one of the first SRS resource set or the second SRS resource set, wherein the SRS is associated with the one of the first SRS resource set or the second SRS resource set based at least in part on a format of the downlink control information. Numerous other aspects are described.