5G • 5G-Advanced (Rel-18)
Multi-Access PDU (MAPDU) Phase 2
Seamless 5G and Wi-Fi 7 Multi-Path Session Aggregation
Bonds cellular 5G and home Wi-Fi 7 connections simultaneously into a single session, seamlessly switching packets between paths without dropping streams.
Technical Explanation
When a user walks from their living room out onto the street, active video calls or gaming sessions often stutter or drop as Wi-Fi disconnects. Rel-18 MAPDU Phase 2 employs Multi-Path QUIC (MP-QUIC) and ATSSS (Access Traffic Steering, Switching, and Splitting), bonding 5G cellular and Wi-Fi 7 into an aggregated, unbreakable data pipe.
Key Functions
- Bonds 5G cellular and Wi-Fi 7 radio links simultaneously into a single unified session
- Switches active packet flows dynamically between cellular and Wi-Fi based on link quality
- Aggregates bandwidth across both networks to boost peak download and upload speeds
- Eliminates video call and cloud gaming drops when users step outside home Wi-Fi range
Specifications
3GPP TS 23.501, TS 23.502 (Rel-18)
Interfaces
N3 (UPF)Y2 (N3IWF)Uu
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