Communications network
US11464069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2019 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Oct 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/182
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communications network may be used to convey Short Message Service (SMS) messages using the Internet Protocol (IP). User equipment may transmit an SMS-over-IP Session Initiation Protocol (SIP) message to wireless equipment over a high-bandwidth communications link. The wireless equipment may route the SMS-over-IP SIP message to the ePDG. When the high-bandwidth link is unavailable, the user equipment may transmit a compressed message to the proxy server over a low-bandwidth communications link. The proxy server may convert the compressed message into an SMS-over-IP SIP message that is transmitted to the ePDG. The proxy server may serve as a proxy for the first user equipment from the perspective of the ePDG. This may allow SMS message data to continue to be conveyed through the communications network even when the high-bandwidth communications link becomes unavailable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.