Flexible SRS Triggering via Dynamic Timing Offsets
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Solution Overview
Problem
Current radio communication systems lack flexibility in sounding reference signal (SRS) triggering, which can lead to degraded resource utilization efficiency, communication throughput, and quality.
Innovation Solution
A terminal and base station configuration that allows flexible SRS triggering by receiving and controlling SRS transmission using multiple SRS resource sets, with timing based on the reception of downlink control information and offset values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SRS triggering is performed using fixed timing and single resource set configuration, then system complexity is reduced and ease of operation is improved, but resource utilization efficiency and communication throughput are degraded
Solution Approach 1:
The patent implements dynamic SRS triggering by allowing the timing of SRS transmission to be flexibly determined based on downlink control information reception timing and offset values. Multiple SRS resource sets can be configured with different timing parameters, enabling the system to adaptively select appropriate resource sets based on current communication conditions, thereby improving resource utilization without requiring overly complex control mechanisms.
Solution Approach 2:
The patent changes key parameters including timing offsets (first offset and second offset), SRS resource set configurations, and triggering conditions. By allowing these parameters to be dynamically adjusted through downlink control information, the system achieves flexible SRS triggering that optimizes resource utilization while maintaining manageable complexity through standardized parameter management.
2Productivity
If flexible SRS triggering is implemented with multiple resource sets and dynamic timing, then resource utilization efficiency and communication throughput are improved, but system complexity and difficulty of control increase
Solution Approach 1:
The patent segments SRS resources into multiple resource sets, each with specific configurations and purposes. This segmentation allows the system to manage complexity by organizing resources into distinct groups that can be independently controlled and optimized, making it easier to handle flexible triggering requirements without overwhelming system complexity.
Solution Approach 2:
The patent introduces downlink control information as an intermediary that carries timing indications and resource set selection information. This intermediary mechanism simplifies the control process by providing a standardized interface between the network and terminal for flexible SRS triggering, reducing the operational complexity despite the flexibility gained.
3Adaptability or versatility
If multiple SRS resource sets are configured with different timing offsets, then adaptability and versatility of SRS usage are improved, but device complexity and configuration complexity increase
Solution Approach 1:
The patent creates a universal SRS resource set configuration framework that can serve multiple purposes through different timing offset settings. The same basic configuration structure supports various SRS usage scenarios (different offsets for different resource sets) without requiring separate specialized configurations for each scenario, thereby achieving high adaptability with controlled complexity.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes: a receiving section that receives configuration for a plurality of sounding reference signal (SRS) resource sets and receives downlink control information indicating triggering of an SRS; and a control section that controls transmission of the SRS by using one or more SRS resource sets indicated in the downlink control information out of the plurality of SRS resource sets, wherein a timing for the transmission of the SRS is based on a timing for reception of the downlink control information and on a first offset and a second offset included in the one or more SRS resource sets. According to one aspect of the present disclosure, it is possible to flexibly control SRS triggering.