Patents by Inventor Na Zhou
Na Zhou 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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Publication number: 20120320876Abstract: A method and system for terminal switching in a wireless communication system are disclosed. A terminal accesses a packet data network through a packet data network gateway, when the terminal switches between gateways, the target gateway to which the terminal switches allocates a new Routing Identifier (RID) to the terminal, and stores a mapping relationship between the Access Identifier (AID) and the new RID of the terminal. The target gateway or the target mobility management entity (MME) of the terminal initiates a registration update request including the new RID of the terminal to the home Identity Location Register (ILR) of the terminal. After receiving the request, the home ILR of the terminal updates the stored AID-RID mapping information of the terminal according to the new RID of the terminal, and initiates a notification for updating the RID of the terminal to the opposite gateway and/or the opposite MME.Type: ApplicationFiled: October 21, 2010Publication date: December 20, 2012Applicant: ZTE CORPORATIONInventors: Na Zhou, Qiang Wu, Tao Fu
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Publication number: 20120300638Abstract: The present invention discloses a method for controlling establishment of a local IP connection, and the method includes: when an access gateway determines that data or application of a terminal needs to be offloaded, informing the terminal that a local IP connection needs to be established via a mobility management entity and a radio side network element by a bearer modification, or informing a radio side network element or a local gateway of a routing policy via a mobility management entity. The present invention also discloses a system for controlling establishment of a local IP connection. The present invention enables the terminal to instantly acquire whether a local IP connection needs to be re-established, can realize dynamic adjustment of local IP data; meanwhile, the present invention can realize dynamic adjustment of local IP data and dynamic establishment of the local IP connection in the case of the local IP connection.Type: ApplicationFiled: January 26, 2011Publication date: November 29, 2012Applicant: ZTE CORPORATIONInventors: Na Zhou, Jing Wang, Shuang Liang, Zaifeng Zong, Yingzhe Wu
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Patent number: 8290265Abstract: A method for segmenting an object region of interest from an image includes detecting each corner in a captured image; acquiring edges of the object from the captured image based on the detected corners; clustering the detected corners based on corners on the acquired edges; and segmenting the image region in the captured image formed by the clustered corners as a region of interest that likely includes the object. With this method and apparatus for the method, an object region of interest may be segmented from an image without utilizing features such as an object shadow and edges.Type: GrantFiled: December 9, 2008Date of Patent: October 16, 2012Assignee: Alpine Electronics, Inc.Inventors: Feng Gao, Na Zhou, Wei Liu, Huai Yuan
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Publication number: 20120218974Abstract: The disclosure discloses a method and a device for managing Internet Protocol (IP) offload connection. The method comprises the steps of: determining that a target Mobility Management Entity (MME) supports IP offload or identifies information of two Serving Gateways (S-GWs); the target MME receiving IP offload connection information from an source MME; the target MME processing the IP offload connection according to the IP offload connection information, wherein the process comprises one of the following: establishing, updating and activating the IP offload connection. With the disclosure, the experience of the user is enhanced in the wireless communication system.Type: ApplicationFiled: October 18, 2010Publication date: August 30, 2012Applicant: ZTE CORPORATIONInventors: Na Zhou, Shuang Liang, Jing Wang, Zaifeng Zong, Yuzhen Huo
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Publication number: 20120207104Abstract: The disclosure discloses a method for implementing local access, which includes: after user terminal initiates a local access and a mobile management unit determines that the local connection can be established for the user terminal, the mobile management unit acquires local access gateway information through a Domain Name System (DNS) server. The disclosure further discloses a system for implementing local access, correspondingly. By providing a specific implementation solution of inquiring the local access gateway, the disclosure ensures selection between the core network gateway and the local access gateway according to a respective scenario, thus properly and effectively implementing the local access function implemented by the user terminal through the local access gateway.Type: ApplicationFiled: October 28, 2010Publication date: August 16, 2012Applicant: ZTE CORPORATIONInventors: Shuang Liang, Na Zhou, Yuzhen Huo, Jing Wang, Zaifeng Zong
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Publication number: 20120207137Abstract: Disclosed is a method for managing local IP access connection, wherein the method comprises: determining whether a local IP access connection supports mobility; if yes, then processing the local IP access connection, wherein the processing includes at least one of the following: activate, establish and update. According to the present invention, the source/target mobility management entity or source/target RAN node determines whether a local IP access connection supports mobility according to a CSG identifier or local gateway information, which thus achieves the management operation on the local IP access connection, avoids the waste of system resources and the increasing of system burden and improves the processing efficiency of the mobile communication system.Type: ApplicationFiled: November 2, 2010Publication date: August 16, 2012Applicant: ZTE CORPORATIONInventors: Na Zhou, Yuzhen Huo, Shuang Liang, Jing Wang
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Publication number: 20120170495Abstract: A method and apparatus for status transition are provided in the disclosure, which enable a wireless side network element to judge that a service request message is a paging response message after receiving the service request message, transmit an initial user equipment message to a mobility management entity, and indicate that the service request message is valid in the initial user equipment message. The method and apparatus of the disclosure solve the problem that the mobility management entity is unable to make a correct judgment and corresponding logical processing, and improve processing efficiency of the mobile communication system effectively.Type: ApplicationFiled: December 21, 2009Publication date: July 5, 2012Applicant: ZTE CORPORATIONInventors: Na Zhou, Shuang Liang, Jing Wang, Yuzhen Huo, Zaifeng Zong
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Publication number: 20120163300Abstract: The present invention discloses a method and system for acquiring routing strategy. In the solution of the present invention, a routing strategy provision unit sends routing strategies of local IP access to radio side network elements; the radio side network elements receive the routing strategies of local IP access. With the solution of the present invention, the radio side network elements are able to acquire the routing strategies of local IP access at the network element level or the user level, so that the radio side network elements transmit data according to the routing strategies, and the radio side network elements can effectively offload the data with the acquired routing strategies. Besides, in the solution of the present invention, the routing strategies might be for users, that is, different routing strategies might be made for different users, thereby improving the user experience and promoting generalization and popularization of services.Type: ApplicationFiled: August 13, 2010Publication date: June 28, 2012Applicant: ZTE CorporationInventors: Jing Wang, Yuzhen Huo, Na Zhou, Zaifeng Zong
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Publication number: 20120142311Abstract: The present invention provides a charging method, including: a mobility management network element obtaining charging policy information of a terminal from a user subscription data network element; an access network element obtaining the charging policy information of the terminal from the mobility management network element; and the access network element storing the charging policy information of the terminal, and charging for services of the terminal according to the charging policy information. Accordingly, the present invention also provides a charging system, an access network element and a mobility management network element. The technical scheme of the present invention can send the charging policy information to the radio side network element in the LIPA structure to realize the dynamic charging based on users of services; and it can cover the LTE network and the 3G network at the same time.Type: ApplicationFiled: April 22, 2010Publication date: June 7, 2012Applicant: ZTE CORPORATIONInventors: Tong Rui, Na Zhou, Zaifeng Zong
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Publication number: 20120142278Abstract: The present invention provides a method and system for indicating data offload, and a traffic offload network element, the method comprises: when a radio bearer is established or modified, a mobility management unit of a core network notifies a traffic offload network element of the bearer type of the bearer to determine whether to start the data offload. Through the present invention, the judgment operation of the core network is simplified. In addition, under the situation that the core network side determines whether to start local access function, the traffic offload network element also can correctly start an offload policy.Type: ApplicationFiled: July 30, 2010Publication date: June 7, 2012Inventors: Jing Wang, Na Zhou, Yuzhen Huo, Zalfeng Zong
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Publication number: 20120117257Abstract: The invention discloses a method for notifying connection attributes of local IP access, comprising in the procedure of establishing a PDN connection, a mobility management element notifying the user terminal of connection attributes of the PDN connection. The invention also discloses an apparatus for notifying connection attributes of local IP access, comprising: a determination unit for determining connection attributes of the PDN connection for user terminal in the process of establishing the PDN connection; a notification unit for notifying the user terminal of the connection attributes of the PDN connection. The mobility management element at the network side of the invention notifies the UE of the type and attribute information of the PDN connection at the same time after determining the PDN connection to be established for UE so as to facilitate the UE determining the corresponding access policy according to the attribute information of current PDN connection when moving.Type: ApplicationFiled: May 25, 2010Publication date: May 10, 2012Applicant: ZTE CORPORATIONInventors: Yuzhen Huo, Na Zhou
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Publication number: 20120023341Abstract: A power supply circuit includes a power controller and a switch. The power controller is connected to a Southbridge chip of a motherboard. The Southbridge chip outputs status signals of the motherboard. The power controller provides a +5V_SYS voltage or a +5V_SB voltage to a universal serial bus (USB) connector according to the status signals. The switch is connected to the USB connector, a USB controller, and the Southbridge chip. The switch connects or disconnects from the USB connector and the USB controller according to the status signals.Type: ApplicationFiled: October 20, 2010Publication date: January 26, 2012Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD.Inventors: PING-KUN LIN, NA ZHOU
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Publication number: 20090154808Abstract: A method for segmenting an object region of interest from an image includes detecting each corner in a captured image; acquiring edges of the object from the captured image based on the detected corners; clustering the detected corners based on corners on the acquired edges; and segmenting the image region in the captured image formed by the clustered corners as a region of interest that likely includes the object. With this method and apparatus for the method, an object region of interest may be segmented from an image without utilizing features such as an object shadow and edges.Type: ApplicationFiled: December 9, 2008Publication date: June 18, 2009Inventors: Feng Gao, Na Zhou, Wei Liu, Huai Yuan