Secure Configuration Sharing via Phase Authentication

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Solution Overview

Problem

Existing wireless communication systems lack secure and reliable methods for sharing configuration parameters over physical layer (PHY) reference signals, making them vulnerable to malicious attacks and impairing the reliability of subsequent communications functions.

Innovation Solution

The proposed solution involves a method where a first network node transmits a signal conveying a phase to a second network node, which responds with a phase based on the initial phase and an authentication parameter common to both nodes. This authentication process ensures that only authenticated devices can extract a signature parameter for secure communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If configuration parameters are shared over PHY reference signals without authentication, then communication efficiency is improved, but security is worsened making systems vulnerable to malicious attacks

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidsecurity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements authentication procedures before configuration parameter sharing occurs. Network nodes perform mutual authentication using authentication parameters exchanged in advance, ensuring that only authorized nodes can receive and process configuration parameters. This preliminary security check prevents malicious attacks while maintaining efficient communication once authentication is established.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces authentication parameters as an intermediary mechanism between network nodes during configuration sharing. These authentication parameters act as a mediator that verifies the legitimacy of configuration parameter reception, allowing efficient parameter sharing while maintaining security through the intermediary authentication layer.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If authentication mechanisms are implemented for configuration sharing, then security is improved, but device complexity is worsened

Engineering Contradiction:
ImprovesecurityVSAvoidauthentication process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges authentication procedures with the existing configuration parameter sharing process. Instead of implementing separate, complex authentication protocols, the authentication mechanisms are integrated into the reference signal transmission and configuration sharing workflow, reducing overall system complexity while maintaining security.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Network nodes perform self-authentication using authentication parameters that are already present in the system. The nodes independently verify each other's legitimacy without requiring complex external authentication infrastructure, simplifying the authentication process while ensuring security.

Inventive Principle:
Principle #25Self-service

3Reliability

If phase-based authentication is used for configuration sharing, then security against malicious attacks is improved, but measurement precision requirements are worsened

Engineering Contradiction:
Improvesecurity against attacksVSAvoidphase measurement precision
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent transforms security verification from direct configuration parameter matching to phase difference measurement. By changing the authentication parameter from configuration data to phase information, the system achieves security through physical layer characteristics that are harder to spoof, though this requires precise phase measurement capabilities.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12302099B2Secure configuration sharing over reference signals
Publication Date: 2025.05.13 QUALCOMM INC
  • US12302099B2 patent drawing
  • US12302099B2 patent drawing
  • US12302099B2 patent drawing

AI summary

Methods, systems, and devices for wireless communications are described. Disclosed techniques provide for reliable and secure sharing of configuration parameters over physical layer reference signals. A first network node may transmit a first signal conveying a first phase to a second network node. The second network node may transmit a second signal conveying a second phase, the second phase based on the first phase and an authentication parameter common to the first and second network nodes. The first network node may determine that the second phase is based on the first phase and the authentication parameter. Based on determining that the second phase is based on the authentication parameter, the first network node may transmit a third signal conveying a third phase to the second network node, the third phase indicating a signature parameter. The first network node and the second network node may communicate based on the signature parameter.