Neutral Host Mobile Session Identifier Generation
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Solution Overview
Problem
Current communication networks face challenges in generating mobile session identifiers for neutral host networks operating in unlicensed spectrum, as they need to be compatible with 3GPP EPC networks, which require specific identifier formats not yet defined for pseudo-IMSI in neutral host core architectures.
Innovation Solution
A method is introduced to generate a mobile session identifier in a neutral host network by creating a pseudo-IMSI using a 15-digit format, where the Neutral Host Access Mode Indicator (NHAMI) and a Mobile Session PseudoNym (MSPN) are combined, with MSPN generated by converting a random binary value to a decimal value and truncated to 9 digits, ensuring compatibility with 3GPP EPC protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mobile session identifier is generated for a neutral host network operating in unlicensed spectrum, then the network can provide access to mobile devices without 3GPP-type subscription identities, but the identifier format must be compatible with 3GPP EPC networks which requires specific format definitions that do not yet exist for pseudo-IMSI in neutral host core architectures
Solution Approach 1:
The patent applies the copying principle by replicating the 3GPP IMSI format structure for pseudo-IMSI identifiers in neutral host networks. The identifier format copies the essential elements of the 3GPP IMSI structure (including the 15-digit format with specific field definitions) to ensure compatibility with 3GPP EPC networks, allowing mobile devices to be identified in a manner consistent with licensed spectrum networks while operating in unlicensed spectrum
Solution Approach 2:
The patent implements universality by designing a pseudo-IMSI identifier format that serves multiple functions: it enables identification of mobile devices in neutral host networks operating in unlicensed spectrum, maintains compatibility with 3GPP EPC network protocols, and allows seamless integration with existing 3GPP infrastructure. This universal format eliminates the need for separate identifier systems for different network types
Data Source
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AI summary
An identifier of a mobile session is generated for a mobile device accessing a network operating in an unlicensed radio band (e.g., Neutral Host Network). Generation of at least one part of the identifier comprises generating a random binary value, converting the random binary value into a decimal value, and truncating the decimal value to a number of decimal digits consistent with an identifier recognizable by a network operating in a licensed radio band (e.g., 3GPP Evolved Packet Core).