Unlock instant, AI-driven research and patent intelligence for your innovation.

Hybrid positioning algorithm based on LTE and Wi-Fi heterogeneous network

A hybrid positioning and heterogeneous network technology, applied in electrical components, wireless communication, etc., can solve problems such as large positioning accuracy and errors, achieve the effects of reducing positioning errors, excellent performance, and improving global search capabilities and convergence capabilities

Inactive Publication Date: 2017-08-01
NANJING UNIV OF POSTS & TELECOMM
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional positioning algorithms often require 3 or more working base stations, which

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hybrid positioning algorithm based on LTE and Wi-Fi heterogeneous network
  • Hybrid positioning algorithm based on LTE and Wi-Fi heterogeneous network
  • Hybrid positioning algorithm based on LTE and Wi-Fi heterogeneous network

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] The present invention will be further described in detail with reference to the accompanying drawings.

[0033] The invention discloses a hybrid positioning algorithm based on LTE and Wi-Fi heterogeneous networks, establishes a single base station multi-signal positioning geometric model suitable for NLOS environment, and proposes an improved PSO algorithm based on fitness to dynamically adjust the inertia weight in the positioning stage. The activity of each particle is dynamically adjusted to improve the global search ability and convergence ability of the PSO algorithm, and to ensure the accuracy of the position of the mobile station.

[0034] The main method flow is as follows:

[0035] Step 1: Obtain the CELLID of the cell where the mobile station is located and the Received Signal Strength Index (RSSI) of nearby wireless access points (Access Point, AP) to obtain the location range of the mobile station, and obtain the measured value from the network side.

[0036] Step 2...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a hybrid positioning algorithm based on an LTE and Wi-Fi heterogeneous network. The hybrid positioning algorithm comprises the steps that the CELLID of the cell in which a mobile station is located and the signal intensity indication of a nearby wireless access point are acquired to acquire the position range of the mobile station; a measurement value is acquired from the network side; based on a single base station multi-signal hybrid positioning algorithm geometric model, the minimum area of particle search is acquired; an objective function is constructed; an improved PSO algorithm is used to solve the objective function; and finally, an improved PSO algorithm based on the fitness dynamic adjustment inertia weight is used to solve the objective function. According to the invention, the single base station multi-signal positioning geometric model suitable for an NLOS environment is established; the improved PSO algorithm based on the fitness dynamic adjustment inertia weight is provided on the positioning phase; the activity of each particle is dynamically adjusted; the global search ability and the convergence ability of the PSO algorithm are improve; and the position of the mobile station is accurately acquired.

Description

technical field [0001] The invention belongs to the technical field of radio positioning, and in particular relates to a hybrid positioning algorithm based on LTE and Wi-Fi heterogeneous networks. Background technique [0002] With the rapid development of global mobile communication technology, people's demand for location-based services (Location Based Services, LBS) is increasing day by day, so it is of great practical significance to study wireless positioning technology. Long Term Evolution (LTE) is the core network that carries data services in the new generation mobile communication system, so it is of great practical significance to study LTE terminal positioning algorithms. [0003] Global Positioning System (GPS) positioning is limited by the density of obstacles, which will reduce the positioning accuracy and increase power consumption in indoor or building-intensive areas. Wi-Fi (Wireless Fidelity) positioning is mainly used for indoor positioning, but it cannot...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04W64/00
Inventor 陆音赵岩山胡强
Owner NANJING UNIV OF POSTS & TELECOMM
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com