公开(公告)号：US09955422B2

公开(公告)日：2018-04-24

申请号：US15027552

申请日：2013-10-31

Applicant: Nokia Technologies Oy

Inventor： Jari Kalevi Mutikainen

IPC: H04W52/02 ,  H04J3/06 ,  H04W8/24 ,  H04W74/00

CPC classification number: H04W52/0216 ,  H04J3/0638 ,  H04W4/80 ,  H04W8/24 ,  H04W52/0229 ,  H04W74/006 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/166 ,  Y02D70/24

Abstract: Methods and apparatus, including computer program products, are provided for power optimization. In one aspect there is provided a method. The method may include receiving, at a user equipment, configuration information including an active time wherein the active time is less than an allowed clock drift of a clock at the user equipment; and receiving, at the user equipment, data sent in advance by an application server, wherein the advance comprises a time based on at least the allowed clock drift. Related apparatus, systems, methods, and articles are also described.

公开(公告)号：US10425795B2

公开(公告)日：2019-09-24

申请号：US15501131

申请日：2014-08-22

Applicant: Nokia Technologies Oy

Inventor： Jari Kalevi Mutikainen ,  Miikka Poikselka

IPC: H04M11/04 ,  H04W4/90 ,  H04W36/00 ,  H04L29/06

Abstract: A method, apparatus and computer program product are provided to facilitate the handover from a packet switched network to a circuit switched network while an Internet protocol (IP) multimedia subsystem (IMS) session is ongoing. In the context of a method, a notification is received of the handover from a packet switched network to a circuit switched network while an IMS session is ongoing. The method also receives an indication that an emergency call service is active in the IMS session and determines that media resources in the circuit switched network are required to support the emergency call service, as supplemented by a minimum set of emergency related data, that is active in the IMS session. The method may further include causing the media resources to be reserved in the circuit switched network to support the emergency call service that is active in the IMS session.

公开(公告)号：US20170223515A1

公开(公告)日：2017-08-03

申请号：US15501131

申请日：2014-08-22

Applicant: Nokia Technologies Oy

Inventor： Jari Kalevi Mutikainen ,  Miikka Poikselka

IPC: H04W4/22 ,  H04L29/06 ,  H04W36/00

Abstract: A method, apparatus and computer program product are provided to facilitate the handover from a packet switched network to a circuit switched network while an Internet protocol (IP) multimedia subsystem (IMS) session is ongoing. In the context of a method, a notification is received of the handover from a packet switched network to a circuit switched network while an IMS session is ongoing. The method also receives an indication that an emergency call service is active in the IMS session and determines that media resources in the circuit switched network are required to support the emergency call service, as supplemented by a minimum set of emergency related data, that is active in the IMS session. The method may further include causing the media resources to be reserved in the circuit switched network to support the emergency call service that is active in the IMS session.

公开(公告)号：US20170078957A1

公开(公告)日：2017-03-16

申请号：US15123493

申请日：2014-03-06

Applicant: Nokia Technologies Oy

Inventor： Jari Kalevi Mutikainen ,  Sami Kekki

IPC: H04W48/18 ,  H04L29/06 ,  H04W48/08 ,  H04W8/02

CPC classification number: H04W48/18 ,  H04L65/1016 ,  H04W8/02 ,  H04W48/08 ,  H04W84/042 ,  H04W84/12

Abstract: A method, apparatus and computer program product are provided for determining IMS connectivity through non-3GPP access networks. A method is provided for receiving, in response to an access network query, an available public land mobile network (PLMN) list; wherein the PLMN list comprises an IP multimedia subsystem access point name (IMS APN) indication for the respective PLMNs with IMS connectivity; determining, using a processor, if a connection to a home PLMN (HPLMN) can be established using an IMS APN associated with a PLMN from the PLMN list; and prioritizing available wireless local area networks (WLAN) based on the determining if a connection to the HPLMN can be established using the IMS APN for the respective PLMNs of the PLMN list associated with the respective WLANs.

Abstract translation: 提供了一种用于确定通过非3GPP接入网络的IMS连接性的方法，装置和计算机程序产品。 提供了一种用于响应于接入网络查询接收可用的公共陆地移动网络（PLMN）列表的方法; 其中所述PLMN列表包括具有IMS连接性的各个PLMN的IP多媒体子系统接入点名称（IMS APN）指示; 使用处理器确定是否可以使用与PLMN列表中的PLMN相关联的IMS APN来建立到家庭PLMN（HPLMN）的连接; 以及基于确定是否可以使用与相应WLAN相关联的PLMN列表的相应PLMN的IMS APN建立到HPLMN的连接来对可用无线局域网（WLAN）进行优先级排序。