Co-located SGW PGW PDR Linking for Throughput Optimization

The patent combines SGW and PGW into a single co-located entity, merging their functionalities to eliminate unnecessary hops between separate SGW and PGW nodes. This consolidation directly improves data transmission throughput by reducing latency and redundant processing while maintaining the distinct functional roles of SGW (mobility management) and PGW (packet routing) within the same physical infrastructure.

The patent implements preliminary action by pre-establishing PDR linking relationships between SGW and PGW before data transmission occurs. The PDRs are configured in advance to identify co-located SGW/PGW pairs and establish direct forwarding paths, eliminating the need for dynamic route discovery and redundant header operations during actual data transmission, thus optimizing throughput while managing processing complexity.

The patent extracts and eliminates unnecessary S5-U GTPU header operations from the data path when SGW and PGW are co-located. By identifying the co-location scenario, the system removes redundant encapsulation and decapsulation steps that would otherwise be required for inter-node communication, directly improving transmission efficiency while maintaining protocol compatibility through conditional application of optimization.

The patent merges checksum calculation operations by performing them once at the source node rather than redundantly at each intermediate hop. When SGW and PGW are co-located, the system identifies that intermediate checksum calculations are unnecessary since the data remains within the same physical infrastructure, thereby reducing processing time while maintaining data integrity through single-point verification.