Patents by Inventor Xiaoqin Duan
Xiaoqin Duan 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: 8989139Abstract: A Generic Access Network (GAN) and a method for implementing services by using the GAN are disclosed. The GAN is configured to connect a generic IP network with a target network, and includes a Generic Access Network Controller (GANC) configured to enable a User Equipment (UE) to access the target network via the generic IP network. The GANC includes: a user interface, configured to connect the UE; and a Policy and Charging Control (PCC) interface, configured to trigger a process of establishing bearers of the generic IP network.Type: GrantFiled: February 17, 2010Date of Patent: March 24, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Xiaobo Wu, Xiaoqin Duan, Jian Zhang, Yang Zhao, Qingyu Li
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Patent number: 8917710Abstract: A method for processing a service connection between a user terminal and a Wireless Local Area Network (WLAN) is provided. A WLAN interactive network includes at least a WLAN user terminal, a WLAN access unit, a service control unit and a user information storage unit. The method includes setting flags that represent the attached or detached status of the service connection between the user terminal and the WLAN in the WLAN user terminal and the service control unit respectively; and establishing or canceling the connection between the user terminal and the network through the interaction between the WLAN user terminal and the WLAN, meanwhile modifying the corresponding flags.Type: GrantFiled: May 20, 2013Date of Patent: December 23, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Wenlin Zhang, Zhiming Li, Xiaoqin Duan
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Patent number: 8817751Abstract: A handover method includes an evolved mobile switching center (eMSC) that receives a relocation request from a first network and forwards the relocation request to a second network requesting the second network to establish its own media plane association. The eMSC establishes a media plane association with the second network. The eMSC instructs a user equipment (UE) to access the second network. With the handover method, the UE may be handed over between different networks by using the eMSC. A method for reattaching a UE to the eMSC is also provided so that the UE can be reattached to a target eMSC when the eMSC to which the UE is attached is changed. A handover apparatus and a handover system are also provided.Type: GrantFiled: February 17, 2010Date of Patent: August 26, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Jian Zhang, Xiaobo Wu, Xiaoqin Duan, Qingyu Li
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Patent number: 8798575Abstract: A method for improving service data flow based charging and a system thereof are disclosed. A CRF may determine, according to input information provided by an AF or TPF, that the charging method for the current data flow service is an online or offline charging method, and provide the TPF with the charging rules with the corresponding mechanism. Moreover, the CRF may provide the TPF with the address information of an OCS or OFCS corresponding to the UE, to enable the TPF to address the corresponding OCS according to the address information of the OCS and trigger the following credit request procedure for the UE, or enable the TPF to address the corresponding OFCS according to address information of the OFCS and send collected charging data information of the UE to the OFCS. Therefore the charging procedure based on the FBC mechanism is more complete and more reasonable.Type: GrantFiled: November 10, 2006Date of Patent: August 5, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Xiaoqin Duan, Yajuan Wu
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Patent number: 8718677Abstract: The present invention discloses a method for processing location information request initiated by a User Equipment (UE), which comprises: a target UE requests a Central Network (CN) for location information; the CN obtains a location estimate of the target UE and sends the location estimate of the target UE to a Visited GMLC of the target UE. According to the present invention, when the target UE requests the network with the Location Service system for location information of the target UE, after receiving the location estimate of the target UE from the Radio Access Network, the CN provides the location estimate of the target UE to the V-GMLC at first, and the V-GMLC provides the location estimate to the target UE through the CN after processing the location request, so that the V-GMLC can obtain the processing information of the location information request initiated by the target UE, and furthermore V-GMLC can correctly charge the Mobile Original Location Request initiated by the target UE.Type: GrantFiled: January 10, 2005Date of Patent: May 6, 2014Assignee: Huawei Technologies Co., Ltd.Inventor: Xiaoqin Duan
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Publication number: 20130329713Abstract: A method for processing a service connection between a user terminal and a Wireless Local Area Network (WLAN) is provided. A WLAN interactive network includes at least a WLAN user terminal, a WLAN access unit, a service control unit and a user information storage unit. The method includes setting flags that represent the attached or detached status of the service connection between the user terminal and the WLAN in the WLAN user terminal and the service control unit respectively; and establishing or canceling the connection between the user terminal and the network through the interaction between the WLAN user terminal and the WLAN, meanwhile modifying the corresponding flags.Type: ApplicationFiled: May 20, 2013Publication date: December 12, 2013Applicant: Huawei Technologies Co., Ltd.Inventors: Wenlin ZHANG, Zhiming LI, Xiaoqin DUAN
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Patent number: 8605585Abstract: A method and system for establishing a Diameter session between a TPF and a CRF is disclosed. The Diameter session between the TPF and CRF can be established for each bearer of each subscriber. The Diameter session can also be established for the bearers with a same APN of each subscriber. The Diameter session can also be established with respect for all the bearers of a subscriber. The method and system improves the mechanism for establishing Diameter sessions and makes the implementation of the charging flow more integrated. Moreover, the multiple ways for establishing Diameter sessions between the TPF and the CRF provided in the present invention can be flexibly selected according to the practical charging applications.Type: GrantFiled: January 11, 2011Date of Patent: December 10, 2013Assignee: Huawei Technologies Co., Ltd.Inventor: Xiaoqin Duan
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Patent number: 8531971Abstract: A method for controlling the charging of packet data service is disclosed, which includes: monitoring a number of event triggers; and when one of the event triggers is met, a TPF requesting charging rules from a CRF. In this way, the timing that the TPF requests charging rules from the CRF becomes controllable, and redundant information caused by the unnecessary charging rule from the TPF becomes avoidable, which enables interaction between the TPF and the CRF more effective and the charging control of packet data service reasonable and perfect.Type: GrantFiled: October 20, 2011Date of Patent: September 10, 2013Assignee: Huawei Technologies Co., Ltd.Inventor: Xiaoqin Duan
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Patent number: 8503412Abstract: Disclosed is a method for processing the service connection between a user terminal and a Wireless Local Area Network (WLAN) applicable to a WLAN interactive network that at least comprises: a WLAN user terminal, a WLAN access unit, a service control unit and a user information storage unit. The method comprises: setting flags that represent the attached or detached status of the service connection between the user terminal and the WLAN in the WLAN user terminal and the service control unit respectively; establishing or canceling the connection between the user terminal and the network through the interaction between the WLAN user terminal and the WLAN, meanwhile modifying the corresponding flags.Type: GrantFiled: October 9, 2007Date of Patent: August 6, 2013Assignee: Huawei Technologies Co., Ltd.Inventors: Wenlin Zhang, Xiaoqin Duan
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Patent number: 8380211Abstract: A CS domain call terminating system, includes a routing-controlled determination module that determines a call which has been subject to routing control in accordance with information carried in a received call initiation message. The routing-controlled determination module sends routing-controlled information of the call to a subsequent call flow control module, and the subsequent call flow control module determines and executes a subsequent call flow of the call in accordance with the received routing-controlled information. A network entity can obtain the routing-controlled information of the call during CS domain call termination of the invention, thereby avoiding repeated routing control and an indefinite subsequent call flow in the CS domain call terminating flow.Type: GrantFiled: February 29, 2008Date of Patent: February 19, 2013Assignee: Huawei Technologies Co., Ltd.Inventors: Xiaoqin Duan, Dongming Zhu, Hai Zhang
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Patent number: 8311034Abstract: A method for making a terminating network domain selection, applied in a network system including a CS network and an IMS. The method includes: receiving an IMS service request destined to a served user; judging whether the service request is appropriate to be delivered to the CS network according to a service category of the IMS service request, making a terminating network domain selection according to terminating network domain selection related factors and performing subsequent delivering processes according to the determination of the terminating network domain selection if determining that the IMS service request is appropriate to be delivered to the CS network. The present disclosure also discloses a communication apparatus and a network system.Type: GrantFiled: July 3, 2008Date of Patent: November 13, 2012Assignee: Huawei Technologies Co., Ltd.Inventors: Dongming Zhu, Xiaoqin Duan
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Patent number: 8170565Abstract: A method of domain selection for routing control, applied to a communication system including a Circuit Switched (CS) network and an IP Multimedia Subsystem (IMS) includes: obtaining call status(es) of a user in any one or both of the CS network and the IMS; selecting a domain via which an incoming call is to be delivered according to the call status(es) upon receiving a routing decision query request from a routing decision query entity, and indicating the routing decision query entity to deliver the incoming call via the CS network or the IMS selected. The method provided by embodiments of the present invention selects the domain according to the call status(es) of the user in any one or both of the CS network and the IMS. Therefore, the problem that two calls are respectively delivered via the CS network and the IMS at the same time may be avoided.Type: GrantFiled: December 28, 2007Date of Patent: May 1, 2012Assignee: Huawei Technologies Co., Ltd.Inventors: Dongming Zhu, Hai Zhang, Xiaoqin Duan
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Publication number: 20120033560Abstract: A method for controlling the charging of packet data service is disclosed, which includes: monitoring a number of event triggers; and when one of the event triggers is met, a TPF requesting charging rules from a CRF. In this way, the timing that the TPF requests charging rules from the CRF becomes controllable, and redundant information caused by the unnecessary charging rule from the TPF becomes avoidable, which enables interaction between the TPF and the CRF more effective and the charging control of packet data service reasonable and perfect.Type: ApplicationFiled: October 20, 2011Publication date: February 9, 2012Inventor: Xiaoqin DUAN
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Publication number: 20110280192Abstract: A method for controlling the charging of packet data service is disclosed, which includes: monitoring a number of event triggers; and when one of the event triggers is met, a Traffic Plane Function (TPF) requesting charging rules from a Charging Rule Function (CRF). In the preferred embodiments of the preferred embodiments of the present invention, the event triggers, which the TPF is required for request charging rules from the CRF according to are set by the CRF and then are provided to the TPF. Charging-relevant input information is provided in the request, based on which the CRF determines proper charging rules and sends the determined charging rules to the TPF. In this way, the timing that the TPF requests charging rules from the CRF becomes controllable, and redundant information caused by the unnecessary charging rule from the TPF becomes avoidable, which enables interaction between the TPF and the CRF more effective and the charging control of packet data service reasonable and perfect.Type: ApplicationFiled: July 26, 2011Publication date: November 17, 2011Inventor: Xiaoqin DUAN
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Patent number: 8055275Abstract: Disclosed is an interactive method for reporting location reports by a target UE in an LCS. The method comprises: the target UE receiving a location request initiated by an applicant and reporting a location report to the LCS system after detecting the occurrence of an event triggering a location report; the LCS system returning to the target UE a location report acknowledgement after receiving the location report submitted by the target UE. Further, while submitting the location report to the LCS system, the target UE starting a timer designating a time period and judging whether it has received a location report acknowledgement returned by the LCS system within the designated time period, if yes, stopping the timer designating the time period; otherwise, reporting once again the location report to the LCS system and re-starting the timer designating the time period at the same time.Type: GrantFiled: June 14, 2004Date of Patent: November 8, 2011Assignee: Huawei Technologies Co., Ltd.Inventor: Xiaoqin Duan
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Publication number: 20110251936Abstract: The present invention discloses a method for selecting a charging rule in connection with a subscriber. The method comprises: an AF providing a CRF with service information and user information used for selecting a charging rule; the CRF selecting a charging rule for the subscriber according to the user information and service information. The present invention also provides a system for selecting a charging rule in connection with subscriber. By this invention, the CRF, when selecting a charging rule, can select a charging rule in connection with different subscribers according to the user information and implement diversified charging based on different using situations of the same packet data service, which will attract subscribers to use packet data service, increase the using frequency of packet data service, and be conducive to the promotion and application of packet data service.Type: ApplicationFiled: June 17, 2011Publication date: October 13, 2011Applicant: Huawei Technologies Co., Ltd.Inventors: Wenlin ZHANG, Xiaoqin DUAN, Yajuan WU
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Patent number: 8036210Abstract: The present invention discloses a method for providing an online-charging to solve a problem that a related charging can not be processed correctly for a service involving simultaneously a CS domain and an IMS. The method includes: not invoking an online charging for the user in the CS domain when the user, who subscribes for the service involving simultaneously the CS domain and the IMS and the online charging service, originates or terminates a call in the CS domain; and performing the credit control in the CS domain and/or the IMS for the user in the IMS when the call of the user is processed through the IMS. The present invention also discloses a device and a system for an online credit control.Type: GrantFiled: March 5, 2008Date of Patent: October 11, 2011Assignee: Huawei Technologies Co., Ltd.Inventors: Dongming Zhu, Xiaoqin Duan
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Publication number: 20110217991Abstract: An embodiment handling method after the update of privacy profile of a target UE is disclosed. When LCS system is aware that the privacy profile of a target UE was updated, for every outstanding Location Request against the target UE, the LCS system performs a new privacy check based on the updated privacy profile. If the location request passes the privacy check, the LCS continues to handle the location request; if the location request fails in the privacy check, the LCS initiates a cancellation procedure to the location request. The LCS system can perform a new privacy check for the location request based on the updated privacy profile of the target UE, and implement corresponding processing depending on the result of the privacy check, e.g., for a location request that fails in the privacy check, the LCS system initiates a cancellation procedure.Type: ApplicationFiled: May 16, 2011Publication date: September 8, 2011Applicant: Huawei Technologies Co., Ltd.Inventors: Xiaoqin Duan, Zhengkai Ge
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Patent number: 8009573Abstract: A method for controlling the charging of packet data service includes: monitoring a number of event triggers; and when one of the event triggers is met, a Traffic Plane Function (TPF) requesting charging rules from a Charging Rule Function (CRF). In the preferred embodiments, the event triggers, which the TPF is required for request charging rules from the CRF according to are set by the CRF and then are provided to the TPF. Charging-relevant input information is provided in the request, based on which the CRF determines proper charging rules and sends the determined charging rules to the TPF. In this way, the timing that the TPF requests charging rules from the CRF becomes controllable, and redundant information caused by the unnecessary charging rule from the TPF becomes avoidable, which enables effective interaction between the TPF and the CRF and reasonable charging control of packet data service.Type: GrantFiled: August 11, 2006Date of Patent: August 30, 2011Assignee: Huawei Technologies Co., LtdInventor: Xiaoqin Duan
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Patent number: 7962158Abstract: The present invention discloses a handling method after updating of privacy profile of a target user equipment (UE). When the location service (LCS) system is aware that the privacy profile of a target UE was updated, for every outstanding Location Request against that UE, the location service (LCS) system perform a new privacy check based on the updated privacy profile. If the said location request passes the privacy check, the location service system continues to handle the said location request until the handling process is ended; if the location request fails in the privacy check, the location service system initials a cancellation procedure to the said location request.Type: GrantFiled: October 9, 2004Date of Patent: June 14, 2011Assignee: Huawei Technologies Co., Ltd.Inventors: Xiaoqin Duan, Zhengkai Ge