Methods of mitigation of trombone routing in an IMS/MMD network
US8565186B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 31, 2007 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Jun 19, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention advantageously provides several systems and methods for solving the trombone routing issues within an IMS/MMD network. These approaches avoid trombone routing, speed up handoff, and increase the efficiency of signaling and overall performance of an IMS/MMD network. These solutions can broadly be divided into the following categories. Piggy-backing SIP registration over MIP (Split at FA); Selective Reverse Tunneling and Tunneling between FA and P-CSCF; the SIP-based mobility protocol; use of CoA during SIP registration and call up in MIPv6; Piggy-backing SIP registration when HA and S-CSCF Co-exist; Using Dynamic Home Agents in MIPv4 FA-CoA; and the Interceptor-Caching Approach.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.