Method and system for scalable downlink data load distribution between data processing units for mobile packet data gateway using network address translation
US10873851B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2018 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Jan 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Each UE in a mobile data network is assigned two different addresses, one a common IP address used downstream of the P-GW and the other a new IP address used upstream with the router and unique to the data processing node. The node changes the IP address of the UE in either direction as a packet passes through the P-GW. The use of an IP range unique to each node or data processing unit allows the upstream router to route downlink packets directly to the node containing the UE context, so that forwarding of packets between nodes is greatly reduced, if not eliminated. By getting rid of this inter-node forwarding, the data plane can scale to much greater limits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.