Redundant UPF Transmission Using Packet Replication for Reliability
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Solution Overview
Problem
Existing wireless communication technologies fail to ensure high data transmission reliability, particularly in mobile communication systems, when network entities serving data sessions become unreliable.
Innovation Solution
Implementing redundant transmission by adding a redundant User Plane Function (UPF) entity and indicating Uplink Replication (UL RP) or Downlink Replication (DL RP) functions on network entities to enhance data transmission reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single UPF entity is used for data transmission, then device complexity is reduced, but data transmission reliability deteriorates when the network entity becomes unreliable
Solution Approach 1:
The patent creates a redundant copy of the UPF entity (first UPF and second UPF) to ensure data transmission reliability. When the primary UPF becomes unreliable, the system can switch to the redundant UPF, preventing transmission failures while maintaining manageable complexity through controlled duplication.
2Reliability
If redundant UPF entities are added, then data transmission reliability is improved, but device complexity increases
Solution Approach 1:
The system dynamically manages redundant UPF entities by establishing them only when needed (when reliability requirements are high or network conditions demand it) and removing them when not needed. This dynamic allocation optimizes the balance between reliability and complexity, avoiding permanent overhead of redundant entities.
Solution Approach 2:
The system performs preliminary actions by proactively adding redundant UPF entities before transmission failures occur, based on predicted reliability requirements or network conditions. This preventive approach ensures reliability is maintained while allowing controlled management of complexity through advance planning.
3Reliability
If data packets are replicated for redundant transmission, then data transmission reliability is improved, but loss of time increases due to replication overhead
Solution Approach 1:
The system creates copies of data packets for redundant transmission through the first and second UPF entities. This copying mechanism ensures that if one transmission path fails, the replicated packets can be transmitted through the alternative path, maintaining reliability while managing time loss through efficient replication processes.
Data Source
AI summary
The present disclosure is related to a method and apparatus for redundant transmission to support high data transmission reliability. A method for redundant transmission to support high data transmission reliability includes deciding to add a redundant entity for a first User Plane Function (UPF) entity, selecting a second UPF entity as the redundant entity of the first UPF entity, indicating an Uplink Replication (UL RP) function on a third network entity, and indicating Downlink Replication (DL RP) function on a fourth network entity or Data Network (DN). The present disclosure supports high data transmission reliability by redundant transmission wireless communication system.