WLAN Positioning Access Point Signal Separation
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Solution Overview
Problem
Current wireless LAN-based positioning systems are influenced by traffic-dependent radio environmental changes, making them unreliable for high precision positioning within service operators' coverage premises.
Innovation Solution
A WLAN network is constructed with separate positioning access points that deliver positioning signals independently of traffic-dependent radio environmental changes, using a database to match terminal WLAN signals with stored access point identification information for precise location determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate positioning access points are installed to provide high precision positioning, then positioning accuracy is improved, but device complexity and installation cost increase
Solution Approach 1:
The positioning access point is designed to perform multiple functions: it delivers positioning signals for location determination and simultaneously provides WLAN network access. By integrating these functions into a single device, the system achieves high positioning accuracy without proportionally increasing device complexity or requiring separate dedicated positioning infrastructure.
Solution Approach 2:
The patent combines the positioning function with the existing WLAN access point infrastructure. Instead of creating a completely separate positioning system, the positioning capabilities are merged with the access point that already provides network connectivity, thereby improving positioning accuracy while minimizing the increase in overall system complexity.
2Reliability
If separate positioning access points are installed, then positioning reliability is improved, but installation cost increases due to Ethernet cable requirements
Solution Approach 1:
The patent replaces the mechanical connection system (Ethernet cables and physical network infrastructure) with a wireless communication system. The positioning access point transmits positioning signals wirelessly to terminals, eliminating the need for complex cable installations while maintaining signal reliability through dedicated wireless positioning channels.
3Area of stationary object
If all access points are powered to provide positioning signals, then positioning coverage is improved, but energy consumption increases
Solution Approach 1:
The patent implements selective activation of positioning access points based on local conditions and requirements. Instead of keeping all access points continuously powered for positioning, the system activates only those access points that are needed for current positioning operations, thereby reducing overall energy consumption while maintaining adequate positioning coverage in areas where it is required.
Data Source
AI summary
The present disclosure provides in some aspects a method for positioning by a positioning access point, and an apparatus, system and access point for the same. A positioning system includes an AP including a positioning AP for delivering a positioning WLAN signal containing a dedicated positioning information and a telecom AP for delivering a telecom WLAN signal; database for storing an identification information of the access point and a location information belonging to the AP and matching the identification information; terminal for communicating with the AP; and WLAN-based positioning server responsive to a positioning request from the terminal for comparing a parameter of a WLAN signal received from the terminal with an identification information of the positioning AP on a priority basis, and when there is a match of information, granting the location information of the relevant access point the highest priority to determine the location of the terminal.