Protocol and method of VIA field compression in session initiation protocol signaling for 3G wireless networks
US8644314B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2006 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
As SIP usage becomes prolific in 3G wireless communications, challenges are presented to using the current SIP protocols for real-time communications due to the limited signaling compression offered via SIP become. Signaling introduces unwanted delays on limited bandwidth and increases the call setup time. Additionally, SIP messages are large—from a few hundred bytes to several kilobytes—and compression is not offered on all available fields. The invention provides for compression of the VIA field of SIP messages through several techniques and thereby achieves lower signaling delays that reduce complex call setup delays and reduce the loss of bandwidth to necessary in-call signaling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.