Ethernet PDU Session Addressing for Reliable Wireless Communication
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Solution Overview
Problem
Wireless communications systems face challenges in providing Ethernet over wireless communications due to insufficient information about the wireless device, hindering the delivery of desired services.
Innovation Solution
A data network provides addresses and Ethernet packet filter sets to a session management function, which are then applied by a user plane function to establish an Ethernet PDU session for the wireless device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless communications system attempts to provide Ethernet over wireless communications, then service capability is improved, but system reliability deteriorates due to insufficient information about the wireless device
Solution Approach 1:
The patent applies preliminary action by having the wireless device provide Ethernet packet filter sets and address information to the session management function before the Ethernet PDU session is established. This advance preparation ensures that all necessary device-specific information is available in advance, allowing the system to reliably provide Ethernet over wireless communications services without encountering information deficiencies during session establishment or operation
2Device complexity
If network devices operate without wireless device specific information, then device complexity is reduced, but service quality deteriorates due to inability to serve Ethernet over wireless communications
Solution Approach 1:
The patent introduces the session management function as an intermediary between the wireless device and the user plane function. The session management function collects and manages wireless device specific information (Ethernet packet filter sets, addresses) and makes this information available to network devices that need it. This intermediary approach allows network devices to operate with reduced complexity while still accessing necessary device-specific information through the session management function, thereby maintaining high service quality for Ethernet over wireless communications
3Reliability
If Ethernet PDU session establishment requires device specific information, then service reliability is improved, but information loss increases due to insufficient initial information availability
Solution Approach 1:
The patent applies preliminary action by requiring the wireless device to provide Ethernet packet filter sets and address information to the session management function before the Ethernet PDU session is established. This advance preparation ensures that all necessary device-specific information is available in advance, preventing information loss during session establishment and ensuring service reliability throughout the session lifecycle
Data Source
AI summary
Systems, apparatuses, and methods are described for wireless communications. A network function device, such as a policy control function device, may send a policy and charging control rule that is based on one or more Ethernet medium access control (MAC) addresses. For example, the policy control function device may send the policy and charging control rule to a session management function device to provide a packet data unit (PDU) session for a wireless device.