Patents by Inventor Cheng P. Liu
Cheng P. Liu 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: 9119060Abstract: Service continuity is provided when a user equipment (UE), employing local breakout mechanisms at a femto access point (FAP) for a communication session, moves out of the femto coverage area. In particular, a network change detection component can be employed to detect when the UE, attached to the FAP, changes its connection from the femto network to the macro network. Further, an active communication session can exist between the UE and a device/service/application on a local Area network (LAN) connected to a FAP, and/or the Internet, which utilizes local breakout at the FAP. When the UE moves out of the femto network, a context management component can be employed to seamlessly resume the communication session, via the macro network.Type: GrantFiled: July 15, 2014Date of Patent: August 25, 2015Assignees: AT&T INTELLECTUAL PROPERTY I, L.P., AT&T MOBILITY II LLCInventors: Cheng P. Liu, Kurt Huber, Alireza Faryar, Sangar Dowlatkhah
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Patent number: 9107063Abstract: Local breakout mechanisms can be performed by a femto access point (FAP) to facilitate efficient utilization of backhaul and/or macro networks. In particular, a slave Gateway GPRS Support Node (GGSN) can be integrated within the FAP to directly route the incoming traffic from a user equipment (UE) at the FAP. In one example, Internet bound traffic can be directly routed to the Internet, without employing macro network resources. Further, the system can avoid hairpinning by routing traffic between the UE and a home Local Area Network (LAN) by a anchoring a call or a session in the slave GGSN and facilitate integration of UEs with home applications by employing a UE Digital Home Agent. In addition, the FAP can perform UE-to-UE CS media breakout to facilitate communication between UEs attached to the FAP, without routing the traffic through the core macro network.Type: GrantFiled: June 13, 2014Date of Patent: August 11, 2015Assignees: AT&T Intellectual Property I, L.P., AT&T MOBILITY II LLCInventors: Cheng P. Liu, Alireza Faryar, Kurt Huber
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Patent number: 9100707Abstract: System(s), method(s), and device(s) providing converged wireline and wireless services in part by employing a set-top box (STB) with machine-to-machine (M2M) communication are presented. The STB, associated with an access point, such as a femtocell, can be used to send/receive messages, including video, to/from user equipment (UE) via a core network. A monitoring system includes a sensor component that is triggered under specified conditions, and the STB records events in response to the trigger, where a recorded event can be sent as a message to the UE. The STB or associated remote control can indicate a received message to a user, who can view the message on the STB, remote control, or associated television. A meter component is associated with the STB via the femtocell or other desired connection. The STB can receive and store utility meter readings for validation or dispute by the user.Type: GrantFiled: June 11, 2010Date of Patent: August 4, 2015Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: James Fan, Jennifer K. Lam, Cheng P. Liu
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Publication number: 20150141013Abstract: A user equipment device cell reselection procedure includes scaling factors that are based on cell-types of a camping cell and neighbor cells and a mobility state of the user equipment device. The scaling factors can be received in a system information block message. During an idle mode cell selection/reselection procedure, the user equipment device can apply the appropriate scaling factor to the hysteresis during the cell selection/reselection procedure.Type: ApplicationFiled: November 19, 2013Publication date: May 21, 2015Applicants: AT&T Mobility II LLC, AT&T Intellectual Property I, L.P.Inventors: Zhi Cui, Ye Chen, Hongyan Lei, Cheng P. Liu, Yonghui Tong
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Publication number: 20150111594Abstract: A mobile device mobility state is included in device reporting to a radio access network for mobility event and load balancing purposes. Respective load conditions and respective coverage areas of a first set of devices of a first network and a second set of devices of a second network are analyzed. In addition, a mobility state of a mobile device, a first signal strength associated with the first set of devices, and a second signal strength associated with the second set of devices are also analyzed. The mobility state is a function of a movement pattern of the mobile device and a speed at which the mobile device is being moved. Network traffic of the mobile device is routed to a set of network devices selected from the first set of devices and the second set of devices, as a result of the analysis.Type: ApplicationFiled: October 21, 2013Publication date: April 23, 2015Applicants: AT&T Mobility II LLC, AT&T Intellectual Property I, L.P.Inventors: Zhi Cui, Arthur Richard Brisebois, Ye Chen, Hongyan Lei, Cheng P. Liu, Yonghui Tong
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Publication number: 20140342698Abstract: Management services are provided during local breakout at a femto access point (FAP). In an aspect, the FAP facilitates policy management and employs a policy component to perform an analysis and enforce a set of policies for dynamically selecting an optimal route for traffic received at the FAP based on a decision-making process. Typically, the set of policies can specify different routes based on various factors, such as, but not limited to, type of traffic, current and/or future network resource availability, current time, day and/or date, location of the FAP, location of a UE sending/receiving the traffic, a lowest cost route, and/or route based on cost-benefit, etc. Further, a monitoring component is employed to observe the route employed by that traffic, which can be utilized by various services, such as, billing, Quality of Service, security management, address management, failure management and/or provisioning.Type: ApplicationFiled: August 1, 2014Publication date: November 20, 2014Inventors: Cheng P. Liu, Alireza Farid Faryar, Kurt Huber, Henry Jackson Fowler, Robert C. Streijl
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Publication number: 20140329531Abstract: Service continuity is provided when a user equipment (UE), employing local breakout mechanisms at a femto access point (FAP) for a communication session, moves out of the femto coverage area. In particular, a network change detection component can be employed to detect when the UE, attached to the FAP, changes its connection from the femto network to the macro network. Further, an active communication session can exist between the UE and a device/service/application on a local Area network (LAN) connected to a FAP, and/or the Internet, which utilizes local breakout at the FAP. When the UE moves out of the femto network, a context management component can be employed to seamlessly resume the communication session, via the macro network.Type: ApplicationFiled: July 15, 2014Publication date: November 6, 2014Inventors: Cheng P. Liu, Kurt Huber, Alireza Faryar, Sangar Dowlatkhah
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Publication number: 20140295854Abstract: Local breakout mechanisms can be performed by a femto access point (FAP) to facilitate efficient utilization of backhaul and/or macro networks. In particular, a slave Gateway GPRS Support Node (GGSN) can be integrated within the FAP to directly route the incoming traffic from a user equipment (UE) at the FAP. In one example, Internet bound traffic can be directly routed to the Internet, without employing macro network resources. Further, the system can avoid hairpinning by routing traffic between the UE and a home Local Area Network (LAN) by a anchoring a call or a session in the slave GGSN and facilitate integration of UEs with home applications by employing a UE Digital Home Agent. In addition, the FAP can perform UE-to-UE CS media breakout to facilitate communication between UEs attached to the FAP, without routing the traffic through the core macro network.Type: ApplicationFiled: June 13, 2014Publication date: October 2, 2014Inventors: Cheng P. Liu, Alireza Faryar, Kurt Huber
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Patent number: 8831566Abstract: A system and methodology that provides management services during local breakout at a femto access point (FAP) is provided. In particular, the FAP facilitates policy management and employs a policy component to perform an analysis and enforce a set of policies for dynamically selecting an optimal route for traffic received at the FAP based on a decision-making process. Typically, the set of policies can specify different routes based on various factors, such as, but not limited to, type of traffic, current and/or future network resource availability, current time, day and/or date, location of the FAP, location of a UE sending/receiving the traffic, a lowest cost route, and/or route based on cost-benefit, etc. Further, a monitoring component is employed to observe the route employed by that traffic, which can be utilized by various services, such as, billing, Quality of Service, security management, address management, failure management and/or provisioning.Type: GrantFiled: November 20, 2009Date of Patent: September 9, 2014Assignees: AT&T Intellectual Property I, L.P., AT&T Mobility II LLCInventors: Cheng P Liu, Alireza Farid Faryar, Kurt Huber, Henry Jackson Fowler, Robert C. Streijl
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Patent number: 8817699Abstract: A system and methodology that facilitates service continuity when a user equipment (UE), employing local breakout mechanisms at a femto access point (FAP) for a communication session, moves out of the femto coverage area is provided. In particular, a network change detection component can be employed to detect when the UE, attached to the FAP, changes its connection from the femto network to the macro network. Further, an active communication session can exist between the UE and a device/service/application on a local Area network (LAN) connected to a FAP, and/or the Internet, which utilizes local breakout at the FAP. When the UE moves out of the femto network, a context management component can be employed to seamlessly resume the communication session, via the macro network.Type: GrantFiled: November 20, 2009Date of Patent: August 26, 2014Assignees: AT&T Intellectual Property I, L.P., AT&T Mobility II LLCInventors: Cheng P Liu, Alireza Faryar, Kurt Huber, Sangar Dowlatkhah
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Publication number: 20140235261Abstract: System(s), apparatus(es), and method(s) are provided to for providing femtocell service through a secondary connection to a network gateway node that is part of a service provider network. The secondary connection can be established in response to at least one telecommunication performance condition of a primary connection to the network gateway node; the at least one performance condition includes connectivity state of the primary connection or quality of traffic delivery through the primary connection. The secondary connection can be established, in part, via a home gateway node that is alternative to a home gateway node associated with a femtocell access point (AP) that enables, in part, the femtocell wireless service. The main home gateway node or the femtocell AP can initiate establishment of the secondary connection. Home gateway node(s) or femtocell AP(s) that can provide femtocell service through the secondary connection can manage connectivity with the network gateway node.Type: ApplicationFiled: April 28, 2014Publication date: August 21, 2014Applicant: AT&T Intellectual Property I, L.P.Inventors: James Fan, Jennifer K. Lam, Cheng P. Liu
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Patent number: 8798017Abstract: A system and methodology that facilitates home services integration by employing a local breakout mechanism at a femto access point (AP) is provided. In particular, the system can perform mapping to provide home functions to an authorized user equipment (UE) attached to the femto AP and provide integration with one or more home services. Further, a monitoring component is employed for home monitoring and facilitates monitoring and/or controlling devices on the home Local Area Network (LAN) via the UE. Furthermore, an access management component is utilized to set, manage and implement access privileges associated with UEs authorized to access the DH LAN. In addition, shared location data is determined and utilized for location based management and/or location assistance services.Type: GrantFiled: November 20, 2009Date of Patent: August 5, 2014Assignees: AT&T Intellectual Property I, L.P., AT&T Mobility II LLCInventors: Cheng P Liu, Alireza Faryar, Kurt Huber
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Patent number: 8787331Abstract: A system and methodology that employs local breakout mechanisms at a femto access point (FAP) to facilitate efficient utilization of backhaul and/or macro networks is provided. In particular, a slave Gateway GPRS Support Node (GGSN) can be integrated within the FAP to directly route the incoming traffic from a user equipment (UE) at the FAP. In one example, Internet bound traffic can be directly routed to the Internet, without employing macro network resources. Further, the system can avoid hairpinning by routing traffic between the UE and a home Local Area Network (LAN) by a anchoring a call or a session in the slave GGSN and facilitate integration of UEs with home applications by employing a UE Digital Home Agent. In addition, the FAP can perform UE-to-UE CS media breakout to facilitate communication between UEs attached to the FAP, without routing the traffic through the core macro network.Type: GrantFiled: November 20, 2009Date of Patent: July 22, 2014Assignee: AT&T Intellectual Property I, L.P.Inventors: Cheng P Liu, Alireza Faryar, Kurt Huber
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Patent number: 8750098Abstract: System(s), apparatus(es), and method(s) are provided to for providing femtocell service through a secondary connection to a network gateway node that is part of a service provider network. The secondary connection can be established in response to at least one telecommunication performance condition of a primary connection to the network gateway node; the at least one performance condition includes connectivity state of the primary connection or quality of traffic delivery through the primary connection. The secondary connection can be established, in part, via a home gateway node that is alternative to a home gateway node associated with a femtocell access point (AP) that enables, in part, the femtocell wireless service. The main home gateway node or the femtocell AP can initiate establishment of the secondary connection. Home gateway node(s) or femtocell AP(s) that can provide femtocell service through the secondary connection can manage connectivity with the network gateway node.Type: GrantFiled: July 28, 2010Date of Patent: June 10, 2014Assignee: AT&T Intellectual Property I, L.P.Inventors: James Fan, Jennifer K. Lam, Cheng P. Liu
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Patent number: 8526913Abstract: Systems, methods, and computer program products are for managing access to a femtocell coverage area. An exemplary method includes storing in a memory component a first identifier corresponding to a subscribed service of a communication device and a second identifier corresponding to a user of the communication device, and granting access to the femtocell coverage area using the second identifier.Type: GrantFiled: October 8, 2012Date of Patent: September 3, 2013Assignee: AT&T Intellectual Property I, L.P.Inventors: James Fan, Richard Kuo, Cheng P Liu
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Publication number: 20120329472Abstract: A method for adapting quality of service to dynamics of a wireless telecommunications network is provided. The method includes collecting data relating to operation of an element in the network, wherein the collected data comprises radio-frequency (RF) data relating to operation of the network. The method also includes pre-calculating, from the collected data, a dynamic operational characteristic of the network, wherein the pre-calculating includes pre-calculating from the collected data to obtain a geometrical determination based on a geographical location of a wireless communications device within the network.Type: ApplicationFiled: August 31, 2012Publication date: December 27, 2012Inventors: Jeffrey Aaron, Cheng P. Liu
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Patent number: 8295882Abstract: Systems, methods, and computer program products are for managing access to a femtocell coverage area. An exemplary method includes storing in a memory component a first identifier corresponding to a subscribed service of a communication device and a second identifier corresponding to a user of the communication device, and granting access to the femtocell coverage area using the second identifier.Type: GrantFiled: October 18, 2010Date of Patent: October 23, 2012Assignee: AT&T Intellectual Property I, LPInventors: James Fan, Richard Kuo, Cheng P. Liu
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Patent number: 8270315Abstract: A method for adapting quality of service to dynamics of a wireless telecommunications network is provided. The method includes collecting data relating to operation of an element in the network, wherein the collected data comprises radio-frequency (RF) data relating to operation of the network. The method also includes pre-calculating, from the collected data, a dynamic operational characteristic of the network, wherein the pre-calculating includes pre-calculating from the collected data to obtain a geometrical determination based on a geographical location of a wireless communications device within the network.Type: GrantFiled: September 7, 2010Date of Patent: September 18, 2012Assignee: AT&T Intellectual Property I, LPInventors: Jeffrey Aaron, Cheng P. Liu
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Patent number: 8180385Abstract: System(s) and method(s) that, periodically or when dynamically triggered, adapt data rates associated with user equipment (UE) in a network are presented. When the UE uses an application or a service, data traffic associated with the UE is inspected to obtain information relating to the application or service, which is used to determine an application/service margin. Current and historical information relating to communication conditions associated with the UE and an associated user is obtained to facilitate determining expected values of Quality-of-Service factors and communication condition metrics associated with the UE and thereby a volatility margin. For each adaptation time interval, the data rate can be adapted by determining a preliminary data rate and adjusting the preliminary data rate using the application/service margin and volatility margin to obtain the adapted data rate to be used for data communications between a node and the UE in the network.Type: GrantFiled: June 30, 2009Date of Patent: May 15, 2012Assignee: AT&T Intellectual Property I, L.P.Inventors: Jeffrey A. Aaron, Cheng P. Liu
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Publication number: 20120094648Abstract: Systems, methods, and computer program products are for managing access to a femtocell coverage area. An exemplary method includes storing in a memory component a first identifier corresponding to a subscribed service of a communication device and a second identifier corresponding to a user of the communication device, and granting access to the femtocell coverage area using the second identifier.Type: ApplicationFiled: October 18, 2010Publication date: April 19, 2012Inventors: James Fan, Richard Kuo, Cheng P. Liu