发明Voice service in evolved packet system

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申请号 US201113244744 申请日 2011年09月26日 最早公开日 2012年01月19日 所属国家/地区 美国
公开号及公开日 US2012014324A1   2012年01月19日
US8879503B2   2014年11月04日
授权日 2014年11月04日 说明书附图
申请人 DWYER JOHANNA LISA (加拿大)  
BURBIDGE RICHARD CHARLES (英国)  
FACCIN STEFANO (美国)  
CHIN CHEN HO (比利时)  
发明人 DWYER JOHANNA LISA   BURBIDGE RICHARD CHARLES   FACCIN STEFANO   CHIN CHEN HO  
优先权 US20090183935P   20090603US20100793670   20100603US201113244744   20110926
专利分类号 H04W36/22   H04W60/00   H04W80/10   H04W40/00   H04L12/66  
代理机构 HANLEY FLIGHT & ZIMMERMAN LLC   代理人

名称及摘要

Voice service in evolved packet system
Methods and apparatus to manage voice service in evolved packet systems are disclosed. An example method in a User Equipment (UE) includes receiving a Non Access Stratum (NAS) protocol response message with a first indicator, the first indicator provided by lower layers of the UE to upper layers of the UE, responsive to the first indicator, initiating an IMS registration if the UE is not already registered with the IMS, and responsive to the UE having registered with the IP Multimedia (IM) Core Network (CN) Subsystem (IMS), determining availability of voice services over the IP Multimedia (IM) Core Network (CN) Subsystem (IMS).
Voice service in evolved packet system
Methods and apparatus to manage voice service in evolved packet systems are disclosed. An example method in a User Equipment (UE) includes receiving a Non Access Stratum (NAS) protocol response message with a first indicator, the first indicator provided by lower layers of the UE to upper layers of the UE, responsive to the first indicator, initiating an IMS registration if the UE is not already registered with the IMS, and responsive to the UE having registered with the IP Multimedia (IM) Core Network (CN) Subsystem (IMS), determining availability of voice services over the IP Multimedia (IM) Core Network (CN) Subsystem (IMS).

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同族专利 (13) 引用其他专利(16) 被其他专利引用(159)

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