Caller ID Authenticity Notification in Wireless Access Systems
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Solution Overview
Problem
Wireless communication systems face challenges in preventing caller ID spoofing, where attackers falsify caller identity information, leading to illegitimate advantages and legal limitations due to the difficulty in enforcing laws across countries.
Innovation Solution
A method and apparatus for notifying the trust level of authenticity information of caller identity in a wireless access system, which involves receiving a call message, determining the authentication status of the caller ID, and transmitting an indication message to the callee about the authenticity level, whether authenticated, spoofed, or unauthenticated, using a processor and transmitter in network nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If caller ID information is transmitted in wireless communication systems, then callers can provide identity information to callees, but attackers can falsify caller identity information to perform spoofing attacks
Solution Approach 1:
The patent introduces an intermediary authentication mechanism where the network node acts as a mediator between the caller and callee. The network node receives the caller ID from the calling UE, authenticates it against stored subscriber information, and then transmits both the caller ID and authentication result to the called UE. This intermediary verification process prevents spoofing attacks while maintaining the ability to transmit caller identity information.
2Reliability
If the network authenticates caller ID information, then spoofing attacks can be prevented, but the system complexity and processing overhead increase
Solution Approach 1:
The patent implements a self-service authentication approach where the network node automatically retrieves stored subscriber information using the received caller ID as a key, performs the authentication comparison, and generates the authentication result without requiring additional manual intervention or complex external verification systems. The called UE also receives the authentication result directly and can automatically determine whether to answer the call based on this information.
3Reliability
If authentication information is transmitted with each call message, then callee can verify caller identity, but the message size and transmission overhead increase
Solution Approach 1:
The patent extracts only the essential authentication result information and transmits it to the called UE, rather than transmitting entire authentication records or excessive verification data. The network node determines the authentication result (matching or not matching) and transmits this concise information along with the caller ID, minimizing the additional data volume while providing sufficient verification capability for the callee.
Data Source
AI summary
The present invention relates to a wireless access system, and more particularly, to methods and apparatus for notifying authenticity information of a caller identifier (ID) in a wireless access system, comprising: receiving, from a second network node, a first call message including a caller ID of a second UE (UE2), determining whether the caller ID of UE2 has been authenticated or not by detecting a trust level of authenticity information in the first call message, and transmitting, to a first UE (UE1), a second call message including the caller ID and an indication message indicating one or authentication levels out of an authenticated, a spoofed, or an unauthenticated level, wherein the authenticated indicates the caller ID is authenticity and the spoofed indicates the caller ID is not guaranteed to correspond to the UE2.