Data Transmission Packet Replication Through Dual Network Tunnels
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Solution Overview
Problem
Packet loss occurs during uplink and downlink data transmission in wireless communication systems, affecting data transmission reliability.
Innovation Solution
Implementing redundant data transmission by replicating data packets and sending them through separate tunnels, with sequence numbers to differentiate between original and replicated packets, allowing the receiving end to identify and discard or forward the appropriate packet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant transmission is implemented by replicating data packets and sending through separate tunnels, then data transmission reliability is improved, but device complexity and network resource consumption increase
Solution Approach 1:
The patent replicates the original data packet to create a copy packet, then transmits both the original and copy through separate tunnels. This copying mechanism ensures that if one packet is lost, the other can be received, thereby improving data transmission reliability without fundamentally changing the network architecture or device complexity
Solution Approach 2:
The patent segments the data transmission path by creating separate tunnels (first tunnel and second tunnel) for transmitting the original and replicated packets. This segmentation allows independent transmission paths, reducing the impact of single-point failures and improving overall transmission reliability
2Reliability
If redundant transmission is implemented by replicating data packets and sending through separate tunnels, then data transmission reliability is improved, but network resource consumption increases
Solution Approach 1:
The patent implements partial redundancy by sending one original packet and one replicated packet through separate tunnels. This partial redundancy approach provides sufficient protection against packet loss while avoiding the excessive resource consumption that would result from sending multiple copies through all possible paths
Solution Approach 2:
Instead of creating multiple independent transmissions, the patent creates a single copy of the data packet and transmits it through a separate tunnel. This copying approach minimizes additional network resource consumption while still providing the reliability benefit of redundant transmission paths
3Measurement precision
If sequence numbers are added to differentiate original and replicated packets, then packet identification accuracy is improved, but processing overhead increases
Solution Approach 1:
The patent changes the packet parameters by adding sequence numbers to differentiate between original and replicated packets. This parameter change enables accurate packet identification at the receiving end, allowing the receiver to correctly process and reassemble data packets even when received out of order or with duplicates
Data Source
AI summary
A data transmission method and apparatus are provided. One example method involves establishing two tunnels between an access network device and a user plane function network element, where the two tunnels may be tunnels used for downlink data transmission or tunnels used for uplink data transmission. When communicating with the user plane function network element, the access network device may transmit two data packets. In this way, when one data packet is lost, the receive end may further receive the other data packet.