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：US09210621B1

公开(公告)日：2015-12-08

申请号：US14033951

申请日：2013-09-23

Applicant: Sprint Spectrum L.P.

Inventor： Lyle T. Bertz ,  C. Brent Hirschman ,  Trevor D. Shipley

IPC: H04W36/00

CPC classification number: H04W36/0022

Abstract: A method and corresponding system to help maintain continuity of service level for a client device, such as where the client device is being served by an access network in accordance with a set of policy rules and the client device is going to stop being served by that access network and may then be served by another network. To help provide service continuity, the serving access network may detect that the client device is going to stop being served by the access network, and, responsively but before the client device stops being served by the access network, the access network or another entity may provision the client device with one or more service policy rules that the client device itself may then apply when the client device is no longer being served by the access network, such as when the client device is being served by another network instead.

Abstract translation: 一种方法和相应的系统，以帮助维持客户端设备的服务水平的连续性，例如客户端设备根据一组策略规则被接入网络服务的位置，并且客户端设备将停止由该服务器的服务级别 接入网络，然后由另一个网络服务。 为了提供服务连续性，服务接入网络可以检测到客户端设备将停止被接入网络服务，并且响应地但是在客户端设备停止接入网络服务之前，接入网络或另一个实体可以 向客户端设备提供当客户端设备不再被接入网络服务时客户端设备本身可以应用的一个或多个服务策略规则，例如当客户端设备被另一个网络服务时。