Wireless Authentication IMSI Transmission and Parallel Key Setup

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Solution Overview

Problem

Current wireless communication systems face inefficiencies in user equipment authentication, leading to prolonged delays in initial access and service provision, particularly in scenarios where user equipment or network entities lack previous access information.

Innovation Solution

A method where the base station transmits the international mobile subscriber identity (IMSI) of the user equipment to the mobility management entity (MME) before completing the RRC connection setup, allowing simultaneous non-access stratum (NAS) and access stratum (AS) security key setups, reducing authentication and key configuration delays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If the base station waits to transmit the IMSI to the MME after completing the RRC connection setup, then the authentication process follows the conventional sequential procedure, but this results in prolonged authentication delays and slower service provision

Engineering Contradiction:
Improveauthentication delayVSAvoidauthentication procedure complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The base station transmits the IMSI to the MME before completing the RRC connection setup, performing the authentication initiation in advance. This preliminary action allows the MME to start processing authentication requests earlier, reducing the overall authentication delay without significantly increasing procedural complexity

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent combines the NAS security key setup and AS security key setup into a simultaneous parallel process, rather than executing them sequentially. This merging of authentication procedures reduces the total time required while maintaining the necessary security protocols

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If the base station performs NAS security key setup and AS security key setup sequentially, then the authentication procedure follows standard protocols, but this results in extended key configuration time

Engineering Contradiction:
Improveauthentication speedVSAvoidkey setup procedure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges the NAS security key setup and AS security key setup into a simultaneous parallel execution model. Both key setup processes occur concurrently under MME control, dramatically improving authentication speed while the MME manages the increased procedural complexity

Inventive Principle:
Principle #5Merging (Combining)

3Loss of time

If the base station completes full RRC connection setup before initiating authentication, then the connection is fully established, but this causes delays in service provision particularly when users lack previous access information

Engineering Contradiction:
Improveservice provision delayVSAvoidconnection establishment reliability
Core Design Contradiction:
Loss of timeVSReliability

Solution Approach 1:

The base station initiates the authentication process by transmitting the IMSI to the MME before completing the RRC connection setup. This preliminary authentication initiation reduces service provision delay while the connection establishment continues, balancing speed with reliability

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent segments the authentication process from the RRC connection setup process, allowing them to proceed in parallel rather than requiring strict sequential completion. This segmentation enables earlier service initiation while maintaining connection reliability

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9949125B2Method for authenticating terminal in wireless communication system, and device for same
Publication Date: 2018.04.17 LG ELECTRONICS INC
  • US9949125B2 patent drawing
  • US9949125B2 patent drawing
  • US9949125B2 patent drawing

AI summary

A method for performing authentication by a base station with a terminal in a wireless communication system, according to an embodiment of the present invention, comprises the steps of: receiving from a terminal a radio resource control (RRC) connection setup request message; determining, on the basis of the RRC connection setup request message, whether or not the terminal requested fast authentication; if the terminal requested fast authentication, transmitting an international mobile subscriber identity (IMSI) of the terminal to a mobility management entity (MME) before the RRC connection setup of the terminal is complete; and authenticating the terminal on the basis of the control of the MME, wherein, in the step for authenticating the terminal, non-access stratum (NAS) security setup and access stratum (AS) security key setup of the terminal are simultaneously performed.