Preconfigured SRS Transmission for Inactive UE Positioning
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently positioning a UE in an inactive state, leading to increased processing load and power consumption.
Innovation Solution
A method and apparatus for configuring a sounding reference signal (SRS) that allows a UE in an inactive state to be positioned efficiently by pre-configuring SRS transmission, enabling efficient activation and reduced power consumption through RRC resume requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a UE in inactive state performs positioning operations, then positioning service is provided, but processing load and power consumption increase
Solution Approach 1:
The network pre-configures SRS transmission resources and parameters for the UE before it enters inactive state. This preliminary configuration enables the UE to perform positioning operations in inactive state without requiring additional network interaction, thereby reducing processing load and power consumption while maintaining positioning service availability
2Productivity
If SRS transmission is configured for inactive state UE, then positioning efficiency is improved, but device complexity increases
Solution Approach 1:
The patent uses existing SRS (Sounding Reference Signal) resources and transmission mechanisms for positioning purposes in inactive state, rather than introducing entirely new signaling protocols. This multi-functional use of existing infrastructure improves positioning efficiency while minimizing additional device complexity
Solution Approach 2:
All necessary SRS configuration parameters including resource allocation, transmission periodicity, and power control settings are pre-configured before the UE enters inactive state. This preliminary action eliminates the need for complex real-time configuration management during inactive state, thereby improving positioning efficiency without significantly increasing device complexity
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. A method performed by a terminal in a wireless communication system is provided. The method includes: receiving a radio resource control (RRC) release message related to an RRC inactive state, including sounding reference signal (SRS) configuration information for positioning provided in a pre-configured type; identifying an event requiring activation of the SRS configuration information for positioning; and transmitting an RRC resume request message to a base station configured to operate a cell belonging to a validity area for the SRS configuration information for positioning.