Edge Computing Roaming Traffic Offloading via H-SMF
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Solution Overview
Problem
There is a need for an effective method and device to support traffic offloading of a user plane function (UPF) controlled by a home session management function (H-SMF) in a roaming environment within wireless communications systems, particularly in the context of edge computing services.
Innovation Solution
A method and device that involve selecting a user plane function (UPF) entity for user equipment (UE) in a visited public land mobile network (VPLMN) region, transmitting a request message for N4 session establishment, and receiving DNS server information, enabling efficient traffic offloading of edge computing roaming services through a home session management function (H-SMF) entity in a home public land mobile network (HPLMN) region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traffic offloading of edge computing roaming service is supported in a wireless communication system, then service delivery efficiency is improved, but network operation complexity increases
Solution Approach 1:
The patent introduces a home session management function (H-SMF) entity as an intermediary that coordinates between the home public land mobile network (HPLMN) and visited public land mobile network (VPLMN). The H-SMF selects appropriate user plane function (UPF) entities and manages N4 session establishment, acting as a mediator that simplifies the complexity for individual network elements while enabling efficient traffic offloading across networks.
Solution Approach 2:
The patent segments the edge computing roaming service into distinct functional components: H-SMF entity for control and coordination, UPF entities for user plane processing, and separate network domains (HPLMN and VPLMN). This segmentation allows each component to perform its specific function efficiently while reducing overall system complexity through modular design.
2Adaptability or versatility
If UPF entity selection and N4 session establishment are performed for roaming UE, then traffic offloading capability is improved, but signaling overhead increases
Solution Approach 1:
The patent performs UPF entity selection and N4 session establishment in advance before actual data transmission begins. The H-SMF selects the appropriate UPF entity and establishes the N4 session during the initial roaming setup phase, which reduces the need for repeated signaling during subsequent data transmissions and improves traffic offloading capability efficiently.
Data Source
AI summary
The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting higher data rates. A method of processing a control signal in a wireless communication system includes receiving a first control signal transmitted from a BS, processing the received first control signal, and transmitting, to the BS, a second control signal generated based on the processing.