Partial-Frequency SRS Transmission for Coverage and Resource Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently configuring and transmitting sounding reference signals (SRS) due to limitations in flexibility, coverage, and resource utilization, particularly in 5G NR networks, leading to issues like congestion and excessive power consumption.
Innovation Solution
The system and method involve determining a starting position for partial frequency SRS transmission based on an offset parameter and partial frequency factor, using a hopping pattern, and enabling flexible triggering of aperiodic SRS resource sets to enhance coverage and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional SRS transmission configuration is used, then system simplicity is maintained, but coverage and resource utilization are insufficient
Solution Approach 1:
The patent divides the frequency domain into multiple parts by introducing a partial frequency factor (PF) that segments the total bandwidth into PF segments. This allows SRS transmission to be configured in partial frequency resources rather than requiring full bandwidth, thereby extending coverage to cell-edge users while reducing resource congestion and configuration complexity through selective frequency domain allocation.
2Measurement precision
If full frequency SRS transmission is used, then measurement accuracy is improved, but power consumption and resource congestion increase
Solution Approach 1:
The patent implements partial frequency SRS transmission by configuring a partial frequency factor (PF) that determines what portion of the total bandwidth is used for SRS transmission. Instead of requiring full bandwidth transmission for adequate measurement, the system selectively activates only necessary frequency resources (e.g., edge bands for coverage enhancement), achieving sufficient measurement accuracy while significantly reducing power consumption and resource congestion through partial resource utilization.
3Adaptability or versatility
If aperiodic SRS resource sets are used, then network flexibility is improved, but triggering complexity increases
Solution Approach 1:
The patent implements a dynamic triggering mechanism for aperiodic SRS resource sets where the network can flexibly activate or deactivate specific SRS resource sets based on real-time channel conditions and service requirements. The triggering complexity is managed through predefined configurations and standardized DCI formats that dynamically select from pre-configured resource sets, enabling adaptive network responses while maintaining manageable triggering complexity through structured selection mechanisms.
Data Source
AI summary
Presented are systems and methods for sounding reference signal (SRS) transmission. A wireless communication device may receive configuration information for SRS transmission from a wireless communication node. The wireless communication device may transmit a SRS to the wireless communication node according to the configuration information.