Paging DCI Bit Fields for Positioning Measurement Triggering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently triggering positioning measurement operations for terminals, particularly in RRC-connected and RRC idle/inactive states, with high signaling overhead and ambiguity in performing positioning measurements across different states.
Innovation Solution
A method and apparatus that utilize downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled with a radio network temporary identifier (RNTI) to configure terminals for positioning measurements, including bit fields for acquiring measurements, scheduling information, and short messages, which can indicate system information modifications or alerts like ETWS/CMAS, and configure positioning methods using bitmaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If positioning measurement operations are triggered using existing signaling methods, then positioning functionality can be provided, but signaling overhead increases and ambiguity remains in performing measurements across different terminal states
Solution Approach 1:
The patent applies universality by enabling the Paging DCI to serve multiple functions: traditional paging notifications and positioning measurement triggering. The first bit field in the DCI can indicate positioning measurement configuration for both RRC-connected and RRC idle/inactive terminals, eliminating the need for separate signaling mechanisms and reducing overall signaling overhead while maintaining reliable positioning measurement triggering across different terminal states
2Measurement precision
If separate signaling is used for positioning measurement triggering, then measurement accuracy can be improved, but signaling overhead increases
Solution Approach 1:
The patent merges positioning measurement triggering functionality with the existing Paging DCI structure. The first bit field of the DCI is repurposed to carry positioning measurement indicators, combining what were previously separate signaling functions into a single integrated message. This reduces the quantity of signaling messages while maintaining measurement precision through the inclusion of configuration information for RSTD measurement and PRS resource sets
3Adaptability or versatility
If positioning measurements are triggered for RRC idle/inactive terminals, then service coverage is improved, but ambiguity arises in measurement configuration
Solution Approach 1:
The patent applies local quality by providing state-specific positioning measurement configuration within the unified DCI structure. The second bit field contains configuration information tailored to the terminal's current state (RRC-connected or RRC idle/inactive), with specific parameters like measurement gap configuration and PRS resource set indication that are relevant to the terminal's operational state. This eliminates ambiguity by providing state-appropriate configuration details while maintaining service coverage across all terminal states
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 the 4th generation (4G) wireless communication system. 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.