Bidirectional Capability Exchange for Location Services
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Solution Overview
Problem
Current wireless communication systems lack the ability for terminals to exchange capability and subscription information, leading to users being unable to obtain desired location-based services due to hardware, software, or subscription limitations, and lack of information on available assistance data from assistance servers.
Innovation Solution
Implementing a method for terminals to exchange capability and subscription information, including supported GNSSs, signals, measurement types, positioning methods, costs, and cost structures, allowing users to select and subscribe to services on behalf of other terminals and assistance servers to provide accurate positioning data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal reports its capabilities to the assistance server using existing SUPL protocols, then the terminal can receive assistance data for positioning, but the assistance server cannot report its capabilities to the terminal, limiting service selection options
Solution Approach 1:
The patent applies inversion by reversing the traditional capability reporting direction. Instead of only the terminal reporting its capabilities to the assistance server, the assistance server now reports its capabilities (supported positioning methods, accuracy levels, cost structures) to the terminal. This bidirectional capability exchange enables the terminal to make informed service selections based on both its own capabilities and the assistance server's capabilities.
2Measurement precision
If the terminal requests location services with specific quality requirements, then the user can obtain desired service quality, but the user may be unable to receive necessary information to obtain the desired service due to lack of capability exchange
Solution Approach 1:
The patent applies preliminary action by having the assistance server report its capabilities to the terminal before the terminal requests positioning services. This advance information exchange allows the terminal to pre-determine which positioning methods and quality levels are available, enabling informed service selection and request formulation without losing critical capability information.
3Productivity
If one terminal queries the position of another terminal periodically, then location information can be obtained, but there is no interaction between the two terminals preventing service capability negotiation
Solution Approach 1:
The patent applies feedback by establishing a bidirectional communication mechanism where both terminals can exchange capability information. The target terminal (second terminal) reports its capabilities and subscription status to the requesting terminal (first terminal), enabling the requesting terminal to adapt its service requests based on the target terminal's actual capabilities, thus creating a feedback loop for service negotiation.
Data Source
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AI summary
A method for obtaining a service by a first terminal related to a network entity,the method comprising receiving information indicative of capabilities related to the network entity; and selecting one or more of the capabilities.