Patents by Inventor E-Ling Lou
E-Ling Lou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8929256Abstract: Communication networks and associated methods are disclosed that provide third party charging for SIP sessions. A communication network of the invention comprises a session control function (e.g., an IMS CSCF), a network node (e.g., an IMS application server), and a charging system. The session control function serves a SIP session initiated between a first and second party. The network node identifies a third party to charge for the session. The network node includes a third party identifier for the third party in a SIP message for the session, and transmits the SIP message to the session control function. The session control function generates a charging message, maps the third party identifier to the charging message, and transmits the charging message that includes the third party identifier to the charging system. The charging system then initiates charging of the session to the third party based on the third party identifier.Type: GrantFiled: September 13, 2012Date of Patent: January 6, 2015Assignee: Alcatel LucentInventors: Yigang Cai, Tienyu Chiu, Eric H. Henrikson, E-Ling Lou, Bharat H. Patel
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Publication number: 20130010651Abstract: Communication networks and associated methods are disclosed that provide third party charging for SIP sessions. A communication network of the invention comprises a session control function (e.g., an IMS CSCF), a network node (e.g., an IMS application server), and a charging system. The session control function serves a SIP session initiated between a first and second party. The network node identifies a third party to charge for the session. The network node includes a third party identifier for the third party in a SIP message for the session, and transmits the SIP message to the session control function. The session control function generates a charging message, maps the third party identifier to the charging message, and transmits the charging message that includes the third party identifier to the charging system. The charging system then initiates charging of the session to the third party based on the third party identifier.Type: ApplicationFiled: September 13, 2012Publication date: January 10, 2013Inventors: Yigang Cai, Tienyu Chiu, Eric H. Henrikson, E-Ling Lou, Bharat H. Patel
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Patent number: 8289885Abstract: Communication networks and associated methods are disclosed that provide third party charging for SIP sessions. A communication network of the invention comprises a session control function (e.g., an IMS CSCF), a network node (e.g., an IMS application server), and a charging system. The session control function serves a SIP session initiated between a first and second party. The network node identifies a third party to charge for the session. The network node includes a third party identifier for the third party in a SIP message for the session, and transmits the SIP message to the session control function. The session control function generates a charging message, maps the third party identifier to the charging message, and transmits the charging message that includes the third party identifier to the charging system. The charging system then initiates charging of the session to the third party based on the third party identifier.Type: GrantFiled: October 27, 2006Date of Patent: October 16, 2012Assignee: Alcatel LucentInventors: Yigang Cai, Tienyu Chiu, Eric H. Henrikson, E-Ling Lou, Bharat H. Patel
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Patent number: 8126131Abstract: A communication network and method are disclosed that block calls from a calling party based on the network access type of a called party. The communication network of the invention includes a permission system, an access system, and a call control system. Based on a call from a calling party to a called party, the permission system identifies permissions associated with the calling party. The access system identifies a network access type for the called party, such as wireless, circuit-based, etc. The call control element determines if the network access type for the called party is permitted by the calling party based on the permissions associated with the calling party. If the network access type for the called party is not permitted by the calling party, then the call control system releases the call.Type: GrantFiled: June 15, 2005Date of Patent: February 28, 2012Assignee: Alcatel LucentInventors: Cynthia K. Florkey, Ruth S. Gayde, Victoria M. Halsell, Karla R. Hunter, E-Ling Lou
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Patent number: 7920523Abstract: The present invention provides a method of handing off a mobile unit that supports multiple quality-of-service (QoS) application layer clients that operate according to multiple wireless access technologies in a packet-switched communication system. The method includes receiving information indicating a request to hand off the mobile unit from a first access network that operates according to a first wireless access technology to a second access network that operates according to a second wireless access technology. The mobile unit established a first session according to the first wireless access technology at a first QoS level. The method also includes establishing, concurrently with the first session and in response to receiving the handoff request, a second session according to the second wireless access technology at the first QoS level. The method further includes communicating with the mobile unit at the first QoS level using the first and second sessions.Type: GrantFiled: January 7, 2008Date of Patent: April 5, 2011Assignee: Alcatel-Lucent USA Inc.Inventors: Edward Grinshpun, Chung Zin Liu, E-Ling Lou, Harinath Rachapalli, Lily Zhu
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Patent number: 7720474Abstract: A method and system for forwarding calls in telecommunication networks are provided. More particularly, control of late call forwarding logic and routing is placed at the home network Gateway MSC and HLR, thus removing the home network service provider's dependency on the visited network capabilities.Type: GrantFiled: April 18, 2006Date of Patent: May 18, 2010Assignee: Alcatel-Lucent USA Inc.Inventors: Sudha Gouthama, Robin J. Thompson, Mark A. Ristich, Angelica T. Remoquillo, Suzann Hua, E-Ling Lou
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Publication number: 20090175239Abstract: The present invention provides a method of handing off a mobile unit that supports multiple quality-of-service (QoS) application layer clients that operate according to multiple wireless access technologies in a packet-switched communication system. The method includes receiving information indicating a request to hand off the mobile unit from a first access network that operates according to a first wireless access technology to a second access network that operates according to a second wireless access technology. The mobile unit established a first session according to the first wireless access technology at a first QoS level. The method also includes establishing, concurrently with the first session and in response to receiving the handoff request, a second session according to the second wireless access technology at the first QoS level. The method further includes communicating with the mobile unit at the first QoS level using the first and second sessions.Type: ApplicationFiled: January 7, 2008Publication date: July 9, 2009Inventors: Edward Grinshpun, Chung Zin Liu, E-Ling Lou, Harinath Rachapalli, Lily Zhu
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Publication number: 20080103992Abstract: Communication networks and associated methods are disclosed that provide third party charging for SIP sessions. A communication network of the invention comprises a session control function (e.g., an IMS CSCF), a network node (e.g., an IMS application server), and a charging system. The session control function serves a SIP session initiated between a first and second party. The network node identifies a third party to charge for the session. The network node includes a third party identifier for the third party in a SIP message for the session, and transmits the SIP message to the session control function. The session control function generates a charging message, maps the third party identifier to the charging message, and transmits the charging message that includes the third party identifier to the charging system. The charging system then initiates charging of the session to the third party based on the third party identifier.Type: ApplicationFiled: October 27, 2006Publication date: May 1, 2008Inventors: Yigang Cai, Tienyu Chiu, Eric H. Henrikson, E-Ling Lou, Bharat H. Patel
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Publication number: 20070243875Abstract: A method and system for forwarding calls in telecommunication networks are provided. More particularly, control of late call forwarding logic and routing is placed at the home network Gateway MSC and HLR, thus removing the home network service provider's dependency on the visited network capabilities.Type: ApplicationFiled: April 18, 2006Publication date: October 18, 2007Inventors: Sudha Gouthama, Robin Thompson, Mark Ristich, Angelica Remoquillo, Suzann Hua, E-Ling Lou
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Publication number: 20070003049Abstract: A communication network and method are disclosed that block calls from a calling party based on the network access type of a called party. The communication network of the invention includes a permission system, an access system, and a call control system. Based on a call from a calling party to a called party, the permission system identifies permissions associated with the calling party. The access system identifies a network access type for the called party, such as wireless, circuit-based, etc. The call control element determines if the network access type for the called party is permitted by the calling party based on the permissions associated with the calling party. If the network access type for the called party is not permitted by the calling party, then the call control system releases the call.Type: ApplicationFiled: June 15, 2005Publication date: January 4, 2007Inventors: Cynthia Florkey, Ruth Gayde, Victoria Halsell, Karla Hunter, E-Ling Lou
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Publication number: 20060264199Abstract: A communication system is disclosed that includes a communication network and a billing system. The communication network connects a call between a calling device and a destination. During the call, the destination puts the calling device on hold. The destination tracks the time the subscriber is on hold, and generates hold information for the call. The communication network receives the hold information from the destination, and transmits the hold information to the billing system. The billing system bills for the call based on the hold information and other relevant information. The billing system may bill hold time for the call differently than active time for the call.Type: ApplicationFiled: May 19, 2005Publication date: November 23, 2006Inventors: Cynthia Florkey, Ruth Gayde, Victoria Halsell, Karla Hunter, E-Ling Lou
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Patent number: 7130619Abstract: Conditional reconnection of a suspended call occurs responsive to a mobile unit (108) sending a mobile-originated reconnect (MORC) message into the network (102). Reconnection does not occur not if the mobile unit does not send a MORC message or affirmatively declines reconnection within a designated waiting period.Type: GrantFiled: January 20, 2004Date of Patent: October 31, 2006Assignee: Lucent Technologies Inc.Inventors: Cynthia Florkey, Ruth Schaefer Gayde, Victoria Marie Halsell, Karla Rae Hunter, E-Ling Lou
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Patent number: 7107054Abstract: Reconnection of a mobile unit to a call session controlled by a first MSC is supported responsive to a network-initiated or mobile-originated reconnect attempt even in instances where the mobile unit has roamed to a border cell controlled by a second MSC. In a network-initiated reconnect attempt, the first MSC sends a suspended call page request to a second MSC. The second MSC pages the mobile unit, sets up a bearer channel to the mobile unit, and sends to the first MSC a suspended call page response including indicia of the bearer channel set up by the second MSC. The first MSC establishes a bearer channel to the second MSC thereby reconnecting the mobile unit to the call session. In a mobile-originated reconnect attempt, the mobile unit sends a mobile-originated reconnect message to the second MSC.Type: GrantFiled: January 20, 2004Date of Patent: September 12, 2006Assignee: Lucent Technologies Inc.Inventors: Cynthia Florkey, Ruth Schaefer Gayde, Victoria Marie Halsell, Karla Rae Hunter, E-Ling Lou
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Publication number: 20060072547Abstract: Systems and methods are disclosed for serving VoIP emergency calls. In one embodiment, a call control entity is placed between PSAPs of an emergency services network and the IP network transporting VoIP calls. When the call control entity receives a VoIP emergency call and its associated user ID, the call control entity assigns a TDN to the emergency call and associates the assigned TDN to the user ID. The emergency call and the TDN are then extended to a PSAP to handle the emergency call. If the emergency call is disconnected from the PSAP, the PSAP operator is able to dial the TDN to provide a call-back function. The call control entity receives the call-back attempt to the TDN from the PSAP, identifies the user ID associated with the TDN, and routes the call-back attempt to the user ID to reestablish a call between the PSAP and the user.Type: ApplicationFiled: September 29, 2004Publication date: April 6, 2006Applicant: Lucent Technologies Inc.Inventors: Cynthia Florkey, Ruth Gayde, Victoria Halsell, Karla Hunter, E-Ling Lou
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Publication number: 20050172141Abstract: This invention relates to a method and apparatus for wireless management of mobile entities. More particularly, the invention relates to an end user device which will allow a trusted entity, e.g., a service provider, to repair the end user device in the event that the end user device becomes inoperable. In addition, the method allows for the trusted entity to update the end user device. Notably, the trusted entity is able to accomplish these tasks from a remote location using an air interface, e.g., a wireless connection.Type: ApplicationFiled: January 30, 2004Publication date: August 4, 2005Inventors: Ruth Gayde, Victoria Halsell, Cynthia Florkey, Karla Hunter, E-Ling Lou
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Publication number: 20050159161Abstract: Reconnection of a mobile unit to a call session controlled by a first MSC is supported responsive to a network-initiated or mobile-originated reconnect attempt even in instances where the mobile unit has roamed to a border cell controlled by a second MSC. In a network-initiated reconnect attempt, the first MSC sends a suspended call page request to a second MSC. The second MSC pages the mobile unit, sets up a bearer channel to the mobile unit, and sends to the first MSC a suspended call page response including indicia of the bearer channel set up by the second MSC. The first MSC establishes a bearer channel to the second MSC thereby reconnecting the mobile unit to the call session. In a mobile-originated reconnect attempt, the mobile unit sends a mobile-originated reconnect message to the second MSC.Type: ApplicationFiled: January 20, 2004Publication date: July 21, 2005Inventors: Cynthia Florkey, Ruth Gayde, Victoria Halsell, Karla Hunter, E-Ling Lou
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Publication number: 20050159138Abstract: Conditional reconnection of a suspended call occurs responsive to a mobile unit (108) sending a mobile-originated reconnect (MORC) message into the network (102). Reconnection does not occur not if the mobile unit does not send a MORC message or affirmatively declines reconnection within a designated waiting period.Type: ApplicationFiled: January 20, 2004Publication date: July 21, 2005Inventors: Cynthia Florkey, Ruth Gayde, Victoria Halsell, Karla Hunter, E-Ling Lou
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Publication number: 20050043017Abstract: Systems and techniques for providing calling information and features to a wireless telephone are described. A server hosting directory information and commands used to implement calling features establishes a packet data connection to a wireless device. The wireless device uses the packet data connection to locate and retrieve desired calling information and commands. The calling information is used by the wireless device initiate a voice connection to a telephone identified by the calling information. The commands are executed by the wireless device in order to implement calling features provided by the system in which the wireless device is used.Type: ApplicationFiled: August 18, 2003Publication date: February 24, 2005Applicant: Lucent Technologies, Inc.Inventors: Daniel Esposito, Chung-Zin Liu, E-Ling Lou
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Patent number: 5623534Abstract: The system of the invention has particular application to a wide area network (WAN) where call routing information often changes in one local area network (LAN) (e.g. a switching system) while other LANs (e.g. cellular communication systems) are unaware of the changes. Because of the heavy flow of traffic in such networks, the minimization of administrative traffic data is desirable. The invention solves the need for constant updating and auditing of the LANs in the WAN. One LAN is considered the master LAN for a given parameter and contains an accurate directory of administrative data for that parameter. Each of the other LANs operate on the assumption that the administrative or directory information it contains is correct.Type: GrantFiled: April 7, 1995Date of Patent: April 22, 1997Assignee: Lucent Technologies Inc.Inventors: Bhupesh J. Desai, E-Ling Lou, Albert J. Sawyer, James J. Sowa