SRS Resource Set Management for Fast UE Panel Switching
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Solution Overview
Problem
Current communication systems are limited to single-panel operations in User Equipment (UE), lacking clear definitions for activating or deactivating multiple panels, leading to inefficiencies in antenna switching and increased latency in multi-panel scenarios.
Innovation Solution
A framework for reference signal resource management is introduced, enabling fast panel and antenna switching by configuring SRS resource sets with specific parameters for intra- and inter-panel operations, including time-domain behaviors, power control, and spatial relations, to optimize UE operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single-panel operations are used in User Equipment, then device complexity is reduced, but antenna switching efficiency deteriorates and latency increases in multi-panel scenarios
Solution Approach 1:
The patent segments the SRS resource configuration into multiple distinct sets, each dedicated to specific panel switching scenarios (intra-panel, inter-panel, antenna switching). This segmentation allows the system to manage complexity by organizing resources into structured groups with specific purposes, enabling efficient panel operations without requiring complex ad-hoc configuration for each switching scenario.
2Adaptability or versatility
If multiple panels are activated in User Equipment, then antenna switching capability is improved, but system complexity and latency increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple SRS resource sets with defined parameters for different panel switching scenarios before actual switching operations occur. The base station provides configuration parameters that establish ready-to-use resource sets for intra-panel switching, inter-panel switching, and antenna switching, eliminating the need for complex real-time configuration decisions during panel transitions.
3Speed
If SRS resource sets are configured with specific parameters for fast panel switching, then switching speed is improved, but resource management complexity increases
Solution Approach 1:
The patent utilizes parameter changes by configuring specific SRS resource set parameters to enable fast panel switching. The base station provides configuration parameters that define time-domain behaviors, power control settings, and spatial relations for different SRS resource sets. By changing and optimizing these parameters for specific switching scenarios, the system achieves fast panel switching while maintaining manageable resource complexity through structured parameter organization.
Data Source
AI summary
Methods, apparatus, and systems for reference signal resource management to enable fast panel switching and antenna switching for wireless devices that have multiple panels are disclosed. In one example aspect, a wireless communication method includes receiving, by a wireless device, a configuration parameter from a base station. The method also includes transmitting, by the wireless device, a sounding reference signal (SRS) to the base station according to an SRS procedure in which one or more resource sets are determined according to the configuration parameter.