Sounding Reference Signal Transmission in Wireless Systems
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Solution Overview
Problem
Current mobile communication systems face challenges in supporting high-speed data services, large data traffic, increased user connections, low latency, and energy efficiency, particularly in transmitting sounding reference signals (SRS) efficiently.
Innovation Solution
A method for transmitting SRS in a wireless communication system involves receiving SRS resource sets from a base station and transmitting SRS on multiple resources, with options for simultaneous transmission through frequency division multiplexing (FDM) or time division multiplexing (TDM, and mapping SRS resource sets to phase-tracking reference signal (PT-RS) and dedicated demodulation reference signal (DM-RS) ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SRS is transmitted on multiple SRS resources in different SRS resource sets, then the capacity and efficiency of wireless communication systems is enhanced, but the device complexity and resource coordination difficulty increase
Solution Approach 1:
The patent divides SRS resources into multiple SRS resource sets, where each set contains one or more SRS resources. This segmentation allows the system to manage multiple SRS transmissions in an organized manner, enabling simultaneous transmission across different sets while maintaining individual resource control within each set, thus enhancing overall transmission capacity without overwhelming system complexity
Solution Approach 2:
The patent introduces a new dimension of resource organization by creating multiple SRS resource sets that can be simultaneously activated. This multi-dimensional resource structure allows SRS transmissions to occur across different resource sets in parallel, effectively increasing the system's SRS transmission capacity beyond what a single resource set could provide
2Productivity
If SRS resources are multiplexed using FDM or TDM, then resource utilization efficiency is improved, but the scheduling complexity and resource allocation overhead increase
Solution Approach 1:
The patent enables dynamic selection between FDM and TDM multiplexing methods for SRS resource allocation. The system can adaptively choose the appropriate multiplexing strategy based on current channel conditions, traffic requirements, and resource availability, allowing flexible optimization of resource utilization while managing scheduling complexity through conditional decision-making
Solution Approach 2:
The patent changes the multiplexing parameter from a fixed mode to a selectable mode between FDM and TDM. By allowing the system to switch between different multiplexing approaches based on operational requirements, the patent improves resource utilization efficiency while keeping scheduling complexity manageable through parameter-based adaptation
Data Source
AI summary
The present specification provides a method for transmitting a sounding reference signal (SRS) in a wireless communication system. More particularly, a method for transmitting, by a terminal, a sounding reference signal (SRS) in a wireless communication system comprises: receiving, from a base station, information relating to a plurality of SRS resource sets, the SRS resource sets each comprising one or more SRS resources; and transmitting, to the base station, an SRS on the plurality of SRS resources based on the information, wherein, if the plurality of SRS resources are included in difference SRS resource sets, the SRS is transmitted simultaneously on the plurality of SRS resources.