UE Call Verification for Spoofed LTE and 5G Calls
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Solution Overview
Problem
Spoofed and spam calls are prevalent in LTE/5G telecommunications networks, and existing solutions like STIR/SHAKEN protocols are inadequate, requiring significant re-architecture and are not universally deployed, leaving consumers vulnerable to illegitimate calls.
Innovation Solution
A UE-based solution within the wireless device's modem detects and prevents illegitimate calls by verifying caller information through provisional messaging, allowing the device to determine if the call is spoofed without impacting existing telecommunication standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If STIR/SHAKEN protocols are implemented for caller ID authentication, then call authentication capability is improved, but device complexity and network re-architecture requirements increase
Solution Approach 1:
The patent extracts the authentication verification function from the network infrastructure and relocates it to the user equipment (UE). The UE independently performs verification by sending SIP OPTIONS requests to the caller's device and analyzing responses, eliminating dependence on network-based STIR/SHAKEN protocols and their associated complexity
Solution Approach 2:
The UE serves itself by performing authentication verification locally without requiring external network services. The device uses its own communication capabilities to send verification requests and analyze responses, making the system self-sufficient and independent of network protocol implementations
2Adaptability or versatility
If network-based authentication protocols are deployed globally, then authentication coverage is improved, but implementation cost and complexity increase
Solution Approach 1:
The patent segments the authentication function into independent UE-level operations rather than requiring centralized network implementation. Each UE independently performs verification using standard SIP protocols, allowing global deployment without coordinated network upgrades or increased implementation costs
3Measurement precision
If provisional messaging verification is performed, then detection accuracy of illegitimate calls is improved, but call setup time increases
Solution Approach 1:
The patent performs verification actions preliminarily during the call setup phase using SIP OPTIONS requests sent before the actual call connection. This preliminary verification obtains authentication results in advance, enabling accurate detection of illegitimate calls while minimizing impact on overall call setup time through efficient parallel processing
Data Source
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AI summary
Various embodiments may include methods and systems for avoiding connecting an illegitimate call within a telecommunications network. Various embodiments may include receiving, from a telecommunications network, an incoming call initiating message notifying the first wireless device of an incoming call, in which the incoming call initiating message includes caller information. Some embodiments may further include transmitting a provisional response message including callee information of the first wireless device in response to receiving the incoming call initiating message, transmitting a request message to a second wireless device based on the caller information and the callee information, determining whether the second wireless device initiated the incoming call based on a response message from the second wireless device, if received, in response to the request message, and taking an action to prevent connection of the incoming call in response to determining that the second wireless device did not initiate the incoming call.