Mobility Security Signaling for Layer 1/2 Triggered Cell Switching

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently securing signaling information for mobility management in mobile communication networks, particularly in environments with diverse device capabilities and network configurations.

Innovation Solution

Implementing a flexible signaling mechanism that adapts to various wireless device capabilities and network configurations, utilizing modular protocols and configurations that can be selectively applied based on criteria such as device category, traffic load, and initial system setup, ensuring secure and efficient mobility management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing wireless communication systems use fixed security protocols for mobility management, then implementation is simple, but they cannot accommodate diverse device capabilities and network configurations

Engineering Contradiction:

Improveadaptability to diverse device capabilitiesVSAvoidsignaling mechanism complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic security protocol selection where the signaling mechanism adapts its behavior based on device capabilities and network conditions. The system transitions from fixed protocols to dynamic protocol selection, allowing the security mechanism to adjust encryption methods, authentication procedures, and signaling parameters according to the specific device and network configuration, thereby resolving the contradiction between adaptability and complexity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes operational parameters of the security protocol based on device category and capability. Different security parameters (such as encryption strength, authentication methods, and signaling overhead) are adjusted according to the device type and network conditions, enabling the system to accommodate diverse capabilities while managing complexity through parameterization rather than structural changes.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If security protocols are made more robust to enhance security, then security improves, but signaling efficiency and network performance deteriorate

Engineering Contradiction:

ImprovesecurityVSAvoidmobility management efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent applies local quality by tailoring security measures to specific device categories and network conditions. Rather than applying uniform robust security to all devices, the system implements appropriate security levels locally for each device type and network scenario, optimizing the balance between security and efficiency for each specific context rather than sacrificing efficiency for universal robustness.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent employs partial security measures appropriate to the specific device capability and network conditions rather than applying maximum security universally. The system implements sufficient security for each device category without excessive overhead, adjusting the degree of security protection to match the actual risk and capability requirements, thereby avoiding unnecessary performance degradation.

Inventive Principle:

Principle #16Partial or excessive action

3Adaptability or versatility

If a unified security protocol is used for all devices, then implementation is straightforward, but it cannot accommodate diverse device capabilities and network configurations

Engineering Contradiction:

Improveaccommodation of diverse device capabilitiesVSAvoidprotocol implementation ease

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent creates a universal signaling mechanism that can handle multiple device types and network configurations through a single framework. The system implements multi-functionality by designing the protocol to automatically adapt to different device capabilities, allowing one unified mechanism to serve diverse purposes without requiring separate implementations for each device category, thus resolving the contradiction between universality and implementation ease.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260006511A1Signaling of Security Information for Mobility

Publication Date: 2026.01.01 OFINNO LLC

AI summary

A method can include transmitting, by a first base station to a wireless device, a radio resource control (RRC) message including a layer 1/layer 2 triggered mobility (LTM) configuration of a cell of a second base station. The method can also include receiving, by a distributed unit (DU) of the first base station from a central unit (CU) of the first base station, a message indicating a next hop chaining count (NCC) for deriving a key of the second base station and an identifier of the cell. The method can further include determining to execute the LTM, of the wireless device, to the cell. The method can additionally include transmitting, to the wireless device, an LTM cell switch medium access control (MAC) control element (CE) for the LTM, indicating the NCC, wherein the LTM cell switch MAC CE comprises an identifier of an LTM candidate configuration of the cell.