Wireless Capability Exchange for Ethernet PDU Session Handover

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Solution Overview

Problem

Wireless communications systems often fail to provide Ethernet over wireless communications due to a lack of information about the wireless device, hindering the device's ability to obtain desired services.

Innovation Solution

A base station requests capability information from a wireless device for an Ethernet type packet data unit session, which the device provides, allowing the base station and/or the access and mobility management function to determine and facilitate the instantiation of an Ethernet type packet data unit session, potentially using compressed headers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the base station requests capability information from the wireless device, then the Ethernet type packet data unit session can be established, but the device complexity increases due to additional capability reporting requirements

Engineering Contradiction:
ImproveEthernet session establishmentVSAvoidcapability reporting
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The base station requests capability information from the wireless device before establishing the Ethernet type packet data unit session. This preliminary action ensures that all necessary capability parameters are known in advance, enabling reliable session establishment without requiring complex runtime negotiations or retries.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the base station facilitates handover to a target base station, then the wireless device can maintain connectivity, but the loss of information may occur during the handover process

Engineering Contradiction:
Improveconnectivity maintenanceVSAvoidcapability information
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

During the handover process, the base station transmits the capability information to the access and mobility management function, which then forwards it to the target base station. This feedback mechanism ensures that the target base station receives accurate capability information about the wireless device, preventing information loss and enabling seamless connectivity maintenance.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12526347B2Wireless device capability information
Publication Date: 2026.01.13 COMCAST CABLE COMM LLC
  • US12526347B2 patent drawing
  • US12526347B2 patent drawing
  • US12526347B2 patent drawing

AI summary

Systems, apparatuses, and methods are described for wireless communications. A base station and wireless device may communicate capability information associated with a wireless device. The capability information may include information indicating support for an Ethernet type packet data unit session or header parameter compression. An Ethernet type packet data unit session may be instantiated based on the capability information.