Malicious UE Deterrence via Delayed Resource Allocation
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Solution Overview
Problem
Wireless communication networks are vulnerable to advanced cyber-attacks from malicious User Equipment (UE) that manipulate air interface protocol stacks, leading to disruptions and denial of service, as existing protection measures are inadequate against stealthier and more targeted attacks.
Innovation Solution
A method and network node that identify malicious UE, deter or delay their communication without termination, by controlling resource allocation and employing techniques such as delayed responses, anonymous messages, and controlled resource scheduling, allowing the malicious UE to maintain radio communication while mitigating attacks without affecting legitimate users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network terminates radio communication with malicious UE, then service disruption is prevented, but network security and integrity are compromised due to inability to detect and mitigate attacks
Solution Approach 1:
The patent introduces an intermediary mechanism where the network node delays response messages to malicious UEs, creating a temporal buffer that allows the network to detect and mitigate attacks without immediately terminating communication. This intermediary delay mechanism enables the network to observe malicious behavior patterns while maintaining the radio connection, thus preventing service disruption while enhancing security through continuous monitoring.
Solution Approach 2:
The patent implements a feedback mechanism where the network node monitors UE behavior and adjusts response timing dynamically. By providing delayed feedback responses to malicious UEs, the network can identify attack patterns and adapt its mitigation strategy in real-time, maintaining both security and service continuity without requiring immediate termination of radio communication.
2Reliability
If the network delays serving malicious UE without termination, then attack mitigation is achieved, but resource allocation complexity increases
Solution Approach 1:
The patent applies partial action by implementing delayed responses only for suspected malicious UEs while maintaining normal service for legitimate users. The network node selectively applies delay mechanisms based on detection algorithms, avoiding unnecessary complexity in resource allocation for benign traffic while focusing mitigation efforts only where needed, thus reducing overall system complexity.
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting response timing parameters based on UE behavior patterns. The network node modifies response delays based on detected malicious characteristics, allowing flexible resource allocation that adapts to different attack scenarios without requiring complex predetermined rules for every possible malicious behavior pattern.
3Ease of manufacture
If static controls relying on QoS are used, then implementation is simple, but effectiveness against evolving attacks is insufficient
Solution Approach 1:
The patent transforms static QoS controls into dynamic behavior-based controls. Instead of relying on fixed threshold values, the network node continuously monitors UE communication patterns and adjusts response timing dynamically. This dynamic approach allows the system to adapt to evolving attack techniques while maintaining implementation simplicity through a unified delay mechanism that handles multiple attack types.
Solution Approach 2:
The patent applies preliminary action by detecting potential malicious behavior before it causes significant network disruption. The network node analyzes UE patterns in advance and applies delayed responses proactively, preventing attacks from escalating while maintaining simple implementation through early detection algorithms that trigger mitigation before critical service impact occurs.
Data Source
AI summary
A method is disclosed for handling a radio communication of a malicious user equipment, UE, in a wireless communication network. The method is performed by at least one network node in the wireless communication network. The method includes obtaining information identifying the malicious UE attached to the wireless communication network. The method includes performing at least one action to deter or delay serving the malicious UE without terminating the radio communication of the malicious UE with the wireless communication network. Further, the method includes controlling allocation of resources to the malicious UE to allow the malicious UE to retain the radio communication with the wireless communication network. Corresponding network node, and computer program products are also disclosed.