Phone Number Classification in 5G SIP Messages
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Solution Overview
Problem
In wireless communication systems, particularly in the 6G era, there is a need for efficient management of phone numbers and contacts between caller and receiver User Equipments (UEs) operating on IP multimedia subsystem (IMS) calls, as users increasingly desire to use multiple phone numbers, and existing systems lack effective methods to handle anonymous or unstored numbers.
Innovation Solution
A method and device that classify phone numbers into permanent, temporary, or invalid states and transmit Session Initiation Protocol (SIP) messages containing this information between UEs, allowing for the display and management of phone numbers, including deactivating blocking functions and updating contacts based on received numbers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver UE blocks calls from anonymous or unstored numbers to improve security, then call security is improved, but legitimate calls from unknown numbers are lost
Solution Approach 1:
The system performs preliminary classification of phone numbers into permanent, temporary, and invalid states before call blocking decisions are made. This preliminary action allows the receiver to distinguish between malicious anonymous calls and legitimate calls from unknown numbers, preventing false blocking of valid calls while maintaining security against actual threats.
Solution Approach 2:
The invention changes the parameter of phone number identification from a binary stored/unstored state to a multi-state classification system (permanent, temporary, invalid). This parameter change enables more nuanced call handling, where calls from temporarily classified numbers can be accepted with user confirmation, thus maintaining security while reducing loss of legitimate calls.
2Loss of information
If the system transmits multiple phone numbers in SIP messages to improve contact management, then contact information completeness is improved, but message complexity increases
Solution Approach 1:
The phone number information is segmented into multiple distinct states (permanent, temporary, invalid) and transmitted as structured elements within the SIP message. This segmentation allows the receiver to process and display different types of phone numbers appropriately, maintaining information completeness while organizing the data in a manageable, structured format that reduces processing complexity.
Data Source
AI summary
The disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). In a wireless communication system, a method performed by a first user equipment (UE) may include: obtaining at least one phone number from a plurality of usable sources, classifying, based on a usage state, the at least one phone number into one of a permanent state, a temporary state, or an invalid state, and transmitting a session initiation protocol (SIP) message including information associated with the at least one classified phone number to a second UE.