Positioning SRS Frequency Hopping for Selective Resource Activation
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately and efficiently transmitting and receiving signals, particularly in scenarios requiring precise positioning and efficient resource management.
Innovation Solution
The method involves configuring and activating SRS frequency hopping for positioning based on control information, allowing for dynamic management of SRS resource sets, including options for activating or deactivating frequency hopping configurations, and specifying parameters such as the number of hops, symbols, and bandwidth, tailored for reduced capability UEs and base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If SRS frequency hopping configuration is activated for all SRS resource sets, then positioning accuracy is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent applies local quality by enabling SRS frequency hopping configuration on a per-SRS resource set basis rather than globally. The base station can selectively activate frequency hopping for specific SRS resource sets that require enhanced positioning accuracy while keeping it deactivated for others, thus tailoring the configuration quality to local needs and reducing overall device complexity.
Solution Approach 2:
The patent implements dynamics by allowing the base station to dynamically activate or deactivate SRS frequency hopping configuration through MAC CE signaling. This enables the system to adapt the frequency hopping configuration in real-time based on positioning requirements, channel conditions, and resource availability, rather than using a static configuration for all scenarios.
2Reliability
If SRS frequency hopping configuration is activated, then signal transmission accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent applies partial action by activating SRS frequency hopping configuration only for specific SRS resource sets that require enhanced signal transmission accuracy, rather than for all resource sets. This selective activation reduces the overall signaling overhead while maintaining reliability where needed.
Solution Approach 2:
The patent segments the SRS resource sets into different groups, with some having frequency hopping configuration activated and others deactivated. This segmentation allows the system to manage signaling overhead by applying the frequency hopping configuration only to the necessary segments rather than the entire system.
3Productivity
If multiple SRS resource sets are configured with frequency hopping, then positioning efficiency is improved, but resource management complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple SRS resource sets with frequency hopping parameters through higher layer signaling before actual positioning operations. The base station then activates specific pre-configured resource sets through MAC CE when positioning is needed, avoiding the complexity of dynamic parameter negotiation during real-time operations.
Solution Approach 2:
The patent implements universality by creating a standardized frequency hopping configuration framework that can be applied to multiple SRS resource sets. The same MAC CE mechanism and configuration structure are used across different resource sets, providing a universal solution that simplifies resource management despite supporting multiple concurrent frequency hopping configurations.
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AI summary
A method by which a terminal transmits a sounding reference signal (SRS) for positioning in a wireless communication system, and an apparatus therefor, according to various embodiments, are disclosed. Disclosed are the method and the apparatus, the method comprising the steps of: receiving configuration information including an SRS frequency hopping configuration through upper layer signaling; receiving first control information for activating one SRS resource set from among a plurality of SRS resource sets; and transmitting the SRS for the positioning in the one SRS resource set.