Wireless Positioning Wake-Up Signal for Power Saving
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting and receiving signals, particularly in triggering positioning measurement operations for terminals in a wireless communication system.
Innovation Solution
A method and apparatus for transmitting and receiving signals in a wireless communication system, involving the reception of system information blocks including assistance data for positioning and downlink control information containing wake-up indications, with specific bit fields indicating configuration for acquiring and reporting positioning measurements using positioning reference signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If positioning measurement operations are continuously performed for terminals, then positioning accuracy is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic positioning measurement operations triggered by wake-up signals instead of continuous measurements. The terminal performs positioning measurements only at specific intervals when triggered by the network, reducing power consumption while maintaining positioning accuracy when needed
Solution Approach 2:
The network sends wake-up signals in advance to trigger positioning measurement operations before they are actually needed. This allows the terminal to prepare and perform measurements at optimal times rather than continuously, balancing accuracy requirements with power saving
2Measurement precision
If positioning measurement operations are triggered for RRC idle/inactive terminals, then positioning capability is improved, but device complexity increases
Solution Approach 1:
The wake-up signal mechanism is designed to work universally for both RRC connected and RRC idle/inactive terminals. The same DCI format and signaling procedures are used across different terminal states, simplifying the overall system design while enabling positioning capability in previously unsupported states
Solution Approach 2:
The patent introduces wake-up signals as an intermediary mechanism between the network and idle/inactive terminals. This intermediary allows the network to trigger positioning measurements without requiring direct RRC connection, simplifying the interaction while enabling positioning capability
3Measurement precision
If detailed configuration information is provided for positioning measurements, then measurement accuracy is improved, but information transmission overhead increases
Solution Approach 1:
The patent provides detailed configuration information only when and where it is needed - specifically in the wake-up signal and associated DCI formats for positioning-triggered terminals. Other terminals use standard configurations, reducing overall information overhead while maintaining measurement accuracy for positioning-capable terminals
Data Source
AI summary
Various embodiments relate to a next generation wireless communication system for supporting a data transmission rate and the like higher than that of beyond 4th generation (4G) wireless communication systems. According to various embodiments, a method for transmitting and receiving a signal in a wireless communication system, and an apparatus for supporting same may be provided, and other various embodiments may also be provided.