Tunnel Mapping for Mobile Core Network Load Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The current one-to-one mapping of tunnels between an eNodeB and an S-GW, and subsequently between the S-GW and a P-GW, leads to alternate routing of service data packets, increasing network load, transmission delay, and negatively impacting quality of service (QoS) in mobile communication core networks.
Innovation Solution
A method and apparatus for processing service data that involves receiving an uplink or downlink service flow, determining tunnel mapping tables, searching for matching service addresses, and allocating or replacing tunnel identifiers to optimize tunnel routing, allowing for more efficient transmission to service anchors or terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If one-to-one mapping of tunnels between eNodeB and S-GW, and between S-GW and P-GW is implemented, then tunnel switching function is achieved, but network load increases and transmission delay increases
Solution Approach 1:
The patent segments the tunnel mapping relationship from a strict one-to-one mapping to a one-to-many mapping model. The first tunnel mapping table establishes multiple second tunnel identifiers corresponding to a single first tunnel identifier, allowing one radio bearer to map to multiple service data tunnels. This segmentation enables flexible routing choices and reduces unnecessary network load while maintaining switching efficiency.
Solution Approach 2:
The patent introduces dynamic tunnel selection based on destination address matching. Instead of fixed one-to-one mapping, the system dynamically determines which second tunnel identifier to use by searching for matching service addresses in the tunnel mapping table. This dynamic approach allows the network to adapt routing decisions in real-time, reducing transmission delay and optimizing network load distribution.
2Device complexity
If one-to-one mapped tunnels are used for service data packet forwarding, then routing is simplified, but transmission delay increases and QoS deteriorates
Solution Approach 1:
The patent performs preliminary action by pre-establishing multiple second tunnel identifiers in the first tunnel mapping table before data transmission occurs. When a service data packet arrives, the system searches for matching service addresses in the pre-configured mapping table and selects an appropriate second tunnel identifier in advance. This preliminary preparation eliminates the need for complex real-time routing calculations, reducing transmission delay while maintaining manageable routing complexity.
3Ease of manufacture
If service data packets are forwarded via one-to-one mapped tunnels through P-GW, then routing is standardized, but network load increases and QoS is negatively affected
Solution Approach 1:
The patent applies universality by enabling a single first tunnel identifier to serve multiple second tunnel identifiers through the one-to-many mapping relationship. This multi-functional approach allows the same radio bearer to be routed through different service data tunnels depending on destination address matching, providing routing flexibility that improves QoS while maintaining standardized GTP protocol implementation.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
Embodiments of the present disclosure provide a method and an apparatus for processing service data. The method includes: receiving an uplink service flow, wherein the uplink service flow includes a first tunnel identifier and a destination address; determining a first tunnel mapping table corresponding to the first tunnel identifier, wherein the first tunnel mapping table includes the first tunnel identifier, one or more second tunnel identifiers corresponding to the first tunnel identifier, and one or more service addresses corresponding to each of the second tunnel identifiers; searching a service address the same as the destination address from the first tunnel mapping table; determining the second tunnel identifier of the uplink service flow based on the destination address if the searching is failed; and transmitting the uplink service flow to a service anchor corresponding to the second tunnel identifier of the uplink service flow. Through the embodiment of the present disclosure, the problem of adding load of transmission network caused by alternate routing due to failure of allocating a preferred path to an uplink service flow is solved, delay of service transmission is reduced, and quality of service is improved.