5G Positioning Pulse Scheduling Without Continuous RRC Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High power consumption in terminal devices during high-precision positioning in 5G networks due to the need for continuous RRC connection for methods like UTDOA and OTDOA, which is not efficient for battery-operated devices.
Innovation Solution
A positioning method that involves interactions among a positioning terminal, at least three network devices, and an LMF to perform positioning without continuous RRC connection, using clock synchronization and access network resource allocation to reduce power consumption, with the terminal entering a dormant state after sending positioning pulses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal device maintains a continuous RRC connection to the network device for positioning, then positioning precision is improved, but power consumption increases
Solution Approach 1:
The terminal device performs positioning by periodically sending positioning pulses at predetermined intervals rather than maintaining continuous RRC connection. The network device receives these periodic pulses and calculates positioning information based on the time difference of arrival, eliminating the need for continuous connection while maintaining positioning functionality.
Solution Approach 2:
The patent extracts the essential positioning function from the continuous RRC connection process. By separating the positioning pulse transmission from the continuous connection maintenance, the system achieves positioning precision without requiring the terminal to maintain RRC connection throughout the entire positioning process.
2Use of energy by moving object
If the terminal device sends positioning pulses periodically without RRC connection, then power consumption is reduced, but positioning response time increases
Solution Approach 1:
The network device pre-configures the terminal device with positioning resource allocation information including transmission time and frequency resources before the actual positioning pulse transmission. This preliminary configuration allows the terminal to send positioning pulses at optimized intervals that balance power consumption and response time requirements.
Data Source
AI summary
This application discloses positioning methods and communication apparatuses, and relates to the field of communication technologies. In one example, a method applied to a positioning terminal includes receiving a first message from a network device, wherein the first message comprises clock synchronization information and access network resource allocation information; sending access request information to the network device based on the first message; receiving positioning resource allocation information from the network device, wherein the positioning resource allocation information is determined after the network device receives the access request information sent by the positioning terminal and sends the access request information to a location management function (LMF); determining a positioning pulse based on the positioning resource allocation information; and sending the positioning pulse to one of three or more network devices in a range of a neighborhood of the positioning terminal.