EASDF Address Delivery During PDU Session Establishment
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Solution Overview
Problem
In edge computing scenarios, user equipment (UE) faces challenges in determining the address information of an edge application server discovery function (EASDF) before initiating a DNS query, as existing protocols do not effectively address how the UE learns of this information during PDU session establishment.
Innovation Solution
The SMF selects an EASDF based on a first identifier received from the UE during PDU session establishment, using geographic or network location to allocate an appropriate EASDF, and provides its address information to the UE, ensuring proper allocation based on the UE's current location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a user equipment supports multiple communication protocols and stores address books for each protocol, then the user can access address books according to different communication protocols, but the memory resource occupation and system complexity increase
Solution Approach 1:
The system segments address book data by associating each contact with specific communication protocols through protocol identifiers. This allows the address book to be divided into protocol-specific views without requiring separate physical storage for each protocol, reducing memory overhead while maintaining protocol compatibility.
Solution Approach 2:
A single address book structure is designed to serve multiple communication protocols simultaneously. The address book management module can present different views of the same contact data depending on the selected protocol, making one address book serve multiple functions and eliminating the need for separate address books for each protocol.
2Adaptability or versatility
If a user equipment supports multiple communication protocols and stores address books for each protocol, then the user can access address books according to different communication protocols, but the memory resource occupation increases
Solution Approach 1:
The system segments address book data by associating each contact with specific communication protocols through protocol identifiers. This allows the address book to be divided into protocol-specific views without requiring separate physical storage for each protocol, reducing memory overhead while maintaining protocol compatibility.
Solution Approach 2:
Instead of maintaining separate physical copies of address book data for each protocol, the system creates virtual copies or views of the same contact data filtered by protocol identifiers. This eliminates redundant data storage while allowing users to access protocol-specific contact lists.
3Reliability
If the address book is locked when the device is locked, then the security is improved, but the user cannot operate the address book when the device is locked
Solution Approach 1:
The system applies different security states to different portions of the address book based on protocol identifiers. When the device is locked, only certain protocol-specific sections remain locked while others can be accessed. This allows selective access to different parts of the address book depending on the communication protocol being used.
Data Source
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AI summary
This application discloses a method and apparatus for transmitting address information, a method and apparatus for obtaining address information, a device, and a medium, and belongs to the field of mobile communication. The method includes: receiving, by a session management function (SMF), a first identifier transmitted by user equipment (LTE) in a protocol data unit (PDU) session establishment process (320); selecting a first edge application server discovery function (EASDF) for the LTE according to the first identifier (340); and transmitting address information of the first EASDF to the UE (360).