公开(公告)号：US09888368B1

公开(公告)日：2018-02-06

申请号：US15481016

申请日：2017-04-06

Applicant: Sprint Spectrum L.P.

Inventor： Lyle T. Bertz ,  William J. Routt ,  Ihab A. Guirguis ,  Ronald E. Lewis ,  Christopher R. Melus

IPC: H04W4/00 ,  H04W4/14 ,  H04L29/06 ,  H04L29/12 ,  H04L12/58 ,  H04M1/253 ,  H04M7/00 ,  H04M15/00 ,  H04M1/725 ,  H04W8/26 ,  H04M3/42

CPC classification number: H04W4/14 ,  H04L51/066 ,  H04L51/38 ,  H04L61/1511 ,  H04L61/1529 ,  H04L61/1588 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/1033 ,  H04M1/2535 ,  H04M1/72547 ,  H04M3/42068 ,  H04M7/0045 ,  H04M15/8228 ,  H04W8/26

Abstract: An Internet Protocol Multimedia Subsystem (IMS) network uses the Session Initiation Protocol (SIP) to provide communication services to mobile nodes. A short message service gateway (SMS-GW) in the IMS network receives a request to deliver a message to a mobile node. The SMS-GW determines whether the mobile node is IMS registered. If the mobile node is IMS registered, the SMS-GW may transmit a SIP MESSAGE request to a call session control function (CSCF) serving the mobile node in order to deliver the message to the mobile node. If the mobile node is SIP-capable but is not IMS registered, the SMS-GW may instead transmit a SIP MESSAGE request to the mobile node's IP address. To obtain the mobile node's IP address, the SMS-GW may query a domain name server (DNS) that stores associations between hostnames and IP addresses of mobile nodes.

公开(公告)号：US09648473B1

公开(公告)日：2017-05-09

申请号：US14033921

申请日：2013-09-23

Applicant: Sprint Spectrum L.P.

Inventor： Lyle T. Bertz ,  William J. Routt ,  Ihab A. Guirguis ,  Ronald E. Lewis ,  Christopher R. Melus

IPC: H04W4/00 ,  H04W4/14 ,  H04M1/253 ,  H04M15/00 ,  H04M1/725 ,  H04W8/26 ,  H04M7/00 ,  H04M3/42

CPC classification number: H04W4/14 ,  H04L51/066 ,  H04L51/38 ,  H04L61/1511 ,  H04L61/1529 ,  H04L61/1588 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/1033 ,  H04M1/2535 ,  H04M1/72547 ,  H04M3/42068 ,  H04M7/0045 ,  H04M15/8228 ,  H04W8/26

Abstract: An Internet Protocol Multimedia Subsystem (IMS) network uses the Session Initiation Protocol (SIP) to provide communication services to mobile nodes. A short message service gateway (SMS-GW) in the IMS network receives a request to deliver a message to a mobile node. The SMS-GW determines whether the mobile node is IMS registered. If the mobile node is IMS registered, the SMS-GW may transmit a SIP MESSAGE request to a call session control function (CSCF) serving the mobile node in order to deliver the message to the mobile node. If the mobile node is SIP-capable but is not IMS registered, the SMS-GW may instead transmit a SIP MESSAGE request to the mobile node's IP address. To obtain the mobile node's IP address, the SMS-GW may query a domain name server (DNS) that stores associations between hostnames and IP addresses of mobile nodes.