Minimal GAN RTP packet length via multi-level header compression
US8488582B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Jun 12, 2008 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Mar 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention involves a method for IP header compression for Real-Time Transport Protocol (RTP) packets that includes header compression for the outer IP layer that carries IPsec ESP tunnel traffic. The preferred embodiment of the invention involves a method of producing minimal VoIP packet size in a GAN user plane by defining an ESP/UDP/IP profile for ROHC; using the ESP/UDP/IP profile to compress the outer layers carrying IPsec ESP tunnel traffic in the GAN user plane; and using a ROHC RTP/UDP/IP profile between IPsec ESP tunnel endpoints for additional compression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.