Generic Positioning Protocol for Multi-Access Interoperability
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Solution Overview
Problem
Existing positioning protocols face challenges in supporting multiple wireless access types, requiring extensive implementation and testing for each new access type, and lack interoperability between satellite-based and terrestrial-based positioning methods.
Innovation Solution
A generic positioning protocol (GPP) is introduced to support multiple positioning methods and access types, enabling efficient implementation and improved interoperability by using common messaging structures and a common location server, allowing for the exchange of position information across different wireless access types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple existing positioning protocols are used to support positioning for different wireless access types, then positioning support coverage is improved, but implementation complexity and testing requirements increase
Solution Approach 1:
The patent applies universality by creating a single generic positioning protocol (GPP) that can support multiple wireless access types (GSM, WCDMA, CDMA2000, EV-DO, and future access types) through a unified message structure and common location server, eliminating the need for separate protocols for each access type and thereby reducing implementation complexity while maintaining broad positioning support coverage
2Adaptability or versatility
If multiple existing positioning protocols are used to support positioning for different wireless access types, then positioning support coverage is improved, but testing requirements increase
Solution Approach 1:
The generic positioning protocol provides a unified framework that works across multiple wireless access types, significantly reducing the extensive implementation and testing that would be required for each separate protocol deployment, thereby reducing testing time while maintaining broad positioning support
3Reliability
If separate positioning protocols are used for different wireless access types, then protocol optimization for specific access types is improved, but interoperability between access types deteriorates
Solution Approach 1:
The GPP provides a universal positioning framework that enables interoperability between different wireless access types through common messaging structures and a common location server, allowing terminals to exchange position information across GSM, WCDMA, CDMA2000, EV-DO and other access types without requiring separate protocol implementations
Solution Approach 2:
The patent segments the positioning functionality into modular components including position elements that can be independently defined for different positioning methods (satellite-based, terrestrial-based), allowing each positioning method to be optimized independently while maintaining overall interoperability through the unified GPP framework
Data Source
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AI summary
In an aspect, a generic positioning protocol (GPP) may be used to support satellite-based positioning methods and terrestrial-based positioning methods for different access types. A terminal may exchange a first GPP message with first information for a positioning method and an access type supported by GPP. The terminal may exchange a second GPP message with second information for the positioning method and the access type. Each GPP message may include at least one position element, and each position element may be for a specific positioning method. The terminal may obtain a position estimate for itself based on the second information. In another aspect, positioning may be performed based on measurements for cells of different wireless access types. In yet another aspect, received transmission times may be transformed to converted times based on common timing, which may be applicable for multiple wireless access types.