Terminal Positioning Using Differential Signal Quality
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Solution Overview
Problem
The transmission of large volumes of signal quality data from terminal devices to network devices can lead to communication congestion and poor real-time performance in positioning systems, especially when a large number of devices are connected.
Innovation Solution
The method involves obtaining and processing first and second signal qualities from different network devices to determine differential signal quality, reducing the data transmitted by the terminal device, which is then used for positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If terminal devices transmit complete signal quality data to network devices for positioning, then positioning accuracy is maintained, but communication congestion increases and real-time performance deteriorates
Solution Approach 1:
The patent extracts only the essential differential signal quality information from the complete signal quality data. Instead of transmitting all signal quality parameters (RSRP, RSRQ, RSSI, SINR) for all network devices, the terminal device calculates and transmits only the differential values between the first and second network devices. This extraction reduces the data volume significantly while preserving the positioning accuracy, as the differential values capture the relative signal quality differences that are critical for positioning.
Solution Approach 2:
The patent creates a simplified representation of the signal quality data through differential calculation. By computing the difference between the first and second signal quality measurements, the system creates a reduced data model that maintains the essential positioning information. This differential representation serves as a copy that preserves the critical relative relationships between signal qualities while eliminating redundant absolute values.
2Measurement precision
If terminal devices transmit complete signal quality data to network devices for positioning, then positioning accuracy is maintained, but data transmission volume increases causing communication congestion
Solution Approach 1:
The patent extracts only the essential differential signal quality information from the complete signal quality data. Instead of transmitting all signal quality parameters (RSRP, RSRQ, RSSI, SINR) for all network devices, the terminal device calculates and transmits only the differential values between the first and second network devices. This extraction reduces the data volume significantly while preserving the positioning accuracy, as the differential values capture the relative signal quality differences that are critical for positioning.
Solution Approach 2:
The patent transforms the data representation by changing from absolute signal quality values to differential values. The transformation converts the complete signal quality parameter set into a reduced set of differential parameters. This parameter change maintains the essential information needed for positioning while substantially reducing the data volume that needs to be transmitted over the communication network.
3Measurement precision
If terminal devices transmit complete signal quality data to network devices, then positioning can be performed, but calculation pressure on location servers increases
Solution Approach 1:
The patent performs the differential calculation in advance at the terminal device before transmission to the network device. By pre-computing the differential signal quality values locally, the terminal device reduces the complexity of data that needs to be processed by the location server. This preliminary action shifts the computational burden from the network side to the terminal side, thereby reducing calculation pressure on location servers while maintaining positioning capability.
Data Source
AI summary
A method for communication, a terminal device, and a network device are provided. One example method includes: obtaining, by a terminal device, first signal quality of a first signal and second signal quality of a second signal; and determining, by the terminal device, first differential signal quality based on the first signal quality and the second signal quality, wherein the first signal and the second signal are respectively sent or received by different network devices, and the first differential signal quality is used to implement positioning of the terminal device.