US 11,889,589 B2 · Communications network

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.

Claims20

Dependent claims

A user equipment device comprising:

one or more antennas;
and
wireless circuitry configured to use the one or more antennas to:
transmit message data over a first communications link having a first bandwidth, and
while the first communications link is unavailable, transmit, over a second communications link, a compressed message that is free of Short Message Service (SMS) headers, the second communications link having a second bandwidth that is less than the first bandwidth.

2 more elements

A method of operating a communications network to convey message data from first user equipment to second user equipment, wherein the communications network comprises a network node, a wireless base station, and a proxy server, the method comprising:

with the wireless base station, receiving a first message from the first user equipment over a first communications link having a first bandwidth;
with the wireless base station, routing the first message to the network node;
with the network node, receiving the first message over a first network tunnel that runs from the first user equipment to the network node and through the wireless base station;
and
with the proxy server, while the first communications link is unavailable, receiving message data from the first user equipment over a second communications link, the second communications link having a second bandwidth that is less than the first bandwidth.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/958,031Filed 30 Sep 2022 · continuation

Priority

8 Jul 2019

Published

US 2023/0028723 A126 Jan 2023

Granted

30 Jan 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04W 80/10
Upper layer protocols: adapted for application session management, e.g. SIP [Session Initiation Protocol]
H04L 67/5651
Conversion or adaptation of application format or content: reducing the amount or size of exchanged application data
H04L 69/04
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…
H04W 4/14
Messaging; Mailboxes; Announcements: short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]

Family

Application62/871,585Us provisional application · filed 8 Jul 2019

Application16/595,260Parent of this continuation · filed 7 Oct 2019

US 2023/0028723 A1Pre-grant publication · published 26 Jan 2023

US 11,464,069 B2Parent of this continuation

US 2021/0014932 A1Published application

US 11,889,589 B2This patent

From the US filing history. Foreign family members aren’t listed.

Communications network

Life of this patent

Communications network

Life of this patent

Abstract

Claims20