PRS Configuration Prioritization for UE Positioning Capability Limits
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Solution Overview
Problem
Existing wireless communication systems face challenges in effectively transmitting and receiving signals, particularly when positioning reference signals exceed the capability of user equipment, leading to ambiguity in operations and the need for prioritization of PRS measurement.
Innovation Solution
A method and apparatus are provided to manage and prioritize the transmission and reception of positioning reference signals (PRS) within the capabilities of user equipment (UE), ensuring clear and efficient signal handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If positioning reference signals are configured in excess of UE capability, then positioning coverage and accuracy are improved, but device complexity and operational ambiguity increase
Solution Approach 1:
The network acts as an intermediary by receiving capability information from the UE and using this information to appropriately configure PRS resources. The network server mediates between the desire for high positioning accuracy (more PRS) and UE capability limitations, selecting an optimal configuration that matches actual device capabilities rather than using a one-size-fits-all approach.
Solution Approach 2:
The PRS configuration becomes dynamic and adaptive based on received capability information. Instead of using a fixed configuration for all UEs, the system dynamically adjusts the number and type of PRS resources configured according to each UE's specific capabilities, allowing the system to optimize positioning accuracy for each device without overwhelming it.
2Measurement precision
If multiple positioning reference signals are configured, then positioning accuracy is improved, but ease of operation deteriorates due to ambiguity in measurement prioritization
Solution Approach 1:
The system performs preliminary action by having the UE report its capability information before the network configures PRS resources. This advance knowledge allows the network to pre-determine an appropriate configuration that avoids operational ambiguity, rather than dealing with capability mismatches after configuration is already in place.
Solution Approach 2:
The network changes configuration parameters (number of PRS resources, frequency locations, time resources) based on the received capability information. By adjusting these parameters according to actual UE capabilities, the system maintains positioning accuracy while ensuring the configuration remains operable and unambiguous for the specific device.
3Area of stationary object
If more positioning reference signals are transmitted, then positioning coverage is improved, but use of energy by user equipment increases
Solution Approach 1:
The system applies partial action by configuring only the necessary number of PRS resources based on UE capability, rather than transmitting maximum possible signals to all devices. This ensures adequate positioning coverage for each UE's specific needs without the excessive energy consumption that would result from configuring more signals than the UE can effectively process.
Data Source
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AI summary
Various embodiments relate to a next-generation wireless communication system for supporting higher data transmission rates or the like than 4th generation (4G) wireless communication systems. According to various embodiments, a method for transmitting and receiving a signal and a device supporting same in a wireless communication system may be provided, and various other embodiments may be provided.