SRS Transmission Configuration for Multi-Panel Interference Measurement
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing interference between panels during uplink signal transmission in multi-panel scenarios, particularly in supporting simultaneous transmission across multiple panels (STxMP), which affects the accuracy of interference measurement and scheduling of physical uplink shared channels (PUSCH).
Innovation Solution
A method where user equipment (UE) transmits a sounding reference signal (SRS) based on configuration information involving both common parameters for multiple panels and specific parameters for individual panels, utilizing preconfigured SRS resources and UE capability information to support STxMP, allowing for effective interference measurement and scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a UE transmits SRS through multiple panels simultaneously (STxMP), then the uplink transmission capability is improved, but the interference measurement accuracy deteriorates due to interference between panels
Solution Approach 1:
The patent segments the SRS transmission by introducing a panel identifier to distinguish signals from different panels. The base station receives SRS from multiple panels and separately measures interference for each panel based on the panel identifier, enabling accurate interference measurement despite simultaneous transmission across multiple panels.
2Device complexity
If common parameters are used for SRS configuration across all panels, then the configuration complexity is reduced, but the adaptability to individual panel characteristics deteriorates
Solution Approach 1:
The patent applies local quality by introducing panel-specific parameters (such as panel-specific SRS resources, power control parameters, and spatial filters) that can be individually configured for each panel while maintaining common parameters for overall SRS transmission. This allows the system to adapt to individual panel characteristics while keeping configuration manageable through a hierarchical parameter structure.
Data Source
AI summary
A method for transmitting a sounding reference signal (SRS) by a terminal in a wireless communication system, according to an embodiment of the present specification, comprises the steps of: receiving configuration information associated with transmission of a sounding reference signal (SRS); and transmitting the SRS on the basis of the configuration information. The SRS is transmitted through a plurality of panels. The SRS is characterized by being transmitted on the basis of a first parameter associated with the plurality of panels and a second parameter associated with one of the plurality of panels.