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1. 发明公开

EP2255570A2 METHODS OF CHANGING VOCODER TECHNOLOGY DURING VOICE-OVER-INTERNET PROTOCOL HANDOFF 有权
标题翻译：方法有交换VOCODERTECHNIK期间的VoIP协议的HANDOVER
公开(公告)号：EP2255570A2
公开(公告)日：2010-12-01
申请号：EP09712200.6
申请日：2009-02-18
申请人： Alcatel-Lucent USA Inc.
发明人： LASSERS, Harold, Aaron , LIU, Chung-zin
IPC分类号： H04W28/18
CPC分类号： H04W88/181 , H04W36/0033
摘要： The present invention provides a method for supporting handoffs of a first mobile unit in a wireless communication system that supports multiple vocoder technologies. The method includes allocating, prior to completion of a handoff of the first mobile unit, a transcoder function to the first mobile unit. The method also includes detecting a change in a format of at least one packet received from the first mobile unit. The change indicates that the vocoder technology used by the first mobile unit to form packets has changed. The method also includes transcoding packets in response to detecting the change in the format.

2. 发明公开

EP2294806A1 ONLINE CHARGING FOR ROAMING USERS IN A PROXY ONLINE CHARGING SYSTEM OF A VISITED NETWORK 有权
标题翻译：在线 - VERGEBÜHRUNGFÜRROAMENDE BENUTZER在EINEM PROXY-ONLINE-VERGEBÜHRUNGSSYSTEMEINES BESUCHTEN NETZES
公开(公告)号：EP2294806A1
公开(公告)日：2011-03-16
申请号：EP09732654.0
申请日：2009-03-26
申请人： Alcatel-Lucent USA Inc.
发明人： CAI, Yigang , LIU, Chung-zin
IPC分类号： H04M17/02 , H04W4/24
CPC分类号： H04W4/24 , H04L12/1403 , H04L12/1446 , H04L12/1453
摘要： Communication networks and methods are disclosed for performing online charging credit control in a visited network when a user is roaming. The visited network which is providing service to a roaming user includes a proxy online charging system (OCS) that communicates with a home OCS in a home network of the user. The proxy OCS transmits an online charging request message to a home OCS in a home network for the roaming user requesting charging information for the roaming user. The proxy OCS receives an online charging response message from the home OCS that includes the charging information for the roaming user. The proxy OCS then processes the charging information to perform credit control for one or more network elements in the visited network that is serving the session.
摘要翻译：公开了当用户漫游时在访问网络中执行在线计费信用控制的通信网络和方法。向漫游用户提供服务的访问网络包括与用户家庭网络中的家庭OCS通信的代理在线计费系统（OCS）。代理OCS向家庭网络中的家庭OCS发送在线计费请求消息，用于漫游用户请求用于漫游用户的计费信息。代理OCS从家庭OCS接收包括漫游用户的计费信息的在线计费响应消息。代理OCS然后处理计费信息以对正在服务会话的拜访网络中的一个或多个网络元件执行信用控制。

3. 发明公开

EP2289254A1 CHARGING IN LTE/EPC COMMUNICATION NETWORKS 失效转让
标题翻译：帐单LTE / EPC通信网络
公开(公告)号：EP2289254A1
公开(公告)日：2011-03-02
申请号：EP09733839.6
申请日：2009-03-26
申请人： Alcatel-Lucent USA Inc.
发明人： CAI, Yigang , LIU, Chung-zin
IPC分类号： H04W4/24 , H04L12/14
CPC分类号： H04W4/24 , G06Q30/04 , H04L12/14 , H04L12/1403 , H04L12/1425 , H04M15/64 , H04M15/66
摘要： Communication networks and methods are disclosed for performing charging in LTE/EPC communication networks (100). In an LTE/EPC communication network (100), a PCRF (110) stores charging rules for online and offline charging. To perform charging for a session, LTE network elements (112-114) that are serving the session request charging rules from the PCRF (110). The PCRF (110) identifies the charging rules, and assigns a unique LTE charging identifier for the session across all network elements in the LTE/EPC communication network (100). The LTE network elements (112-114) receive the charging rules from the PCRF (110) along with the LTE charging identifier for the session. The LTE network elements (1 12-114) generate charging messages for the session, and insert the LTE charging identifier in the charging messages. The LTE network elements (112-114) then transmit the charging messages to a charging system (118-119), such as an OCS or an OFCS. The OCS/OFCS may then correlate the charging messages for the session based on the LTE charging identifier.

4. 发明授权

EP2335389B1 DETECTION OF BEARER LOSS IN AN IP-BASED MULTIMEDIA SESSION 有权
标题翻译：载体在IP为基础的多媒体会话的丢失检测
公开(公告)号：EP2335389B1
公开(公告)日：2013-06-19
申请号：EP09789116.2
申请日：2009-08-12
申请人： Alcatel-Lucent USA Inc.
发明人： LIU, Chung-zin , MATHAI, Stinson, Samuel
IPC分类号： H04L29/06
CPC分类号： H04L69/28 , H04L65/1016 , H04L65/1069 , H04L69/40

5. 发明授权

EP2294806B1 ONLINE CHARGING FOR ROAMING USERS IN A PROXY ONLINE CHARGING SYSTEM OF A VISITED NETWORK 有权
公开(公告)号：EP2294806B1
公开(公告)日：2019-07-24
申请号：EP09732654.0
申请日：2009-03-26
申请人： Alcatel-Lucent USA Inc.
发明人： CAI, Yigang , LIU, Chung-zin
IPC分类号： H04W4/24 , H04L12/14

6. 发明公开

EP2335389A2 DETECTION OF BEARER LOSS IN AN IP-BASED MULTIMEDIA SESSION 有权
标题翻译：载体在IP为基础的多媒体会话的丢失检测
公开(公告)号：EP2335389A2
公开(公告)日：2011-06-22
申请号：EP09789116.2
申请日：2009-08-12
申请人： Alcatel-Lucent USA Inc.
发明人： LIU, Chung-zin , MATHAI, Stinson, Samuel
IPC分类号： H04L29/06
CPC分类号： H04L69/28 , H04L65/1016 , H04L65/1069 , H04L69/40
摘要： The present invention provides a method for detecting bearer loss in an IP-based multimedia session. A multimedia session is initiated by an access terminal. A Policy and Charging Rules Function (PCRF) communicates the Session setup information and the bearer characteristics to a Signaling Gateway (SGW). The SGW uses this information to adjust the dormancy timers on the originating side so that the originating access link remains active during the call setup.

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