Patents by Inventor Zaifeng Zong

Zaifeng Zong 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).

  • Publication number: 20130203414
    Abstract: A mobile terminal registration method in a radio network includes: a. A mobile terminal sending a non-access stratum message and identifier information of last registration to a radio access network unit, and the identifier information comprising the Serving CN Node identifier, Serving CN Node pool identifier and Public Land Mobile Network Identifier; b. If the radio access network unit determines that the identifier information is invalid, the radio access network unit allocating a Serving CN Node to the mobile terminal and sending the non-access stratum message to the Serving CN Node; c. After the Serving CN Node receives the non-access stratum message, if determining that a registration request of mobile terminal can be accepted, the Serving CN Node sending a success response message to the mobile terminal, and the message carrying identifier information of current Serving CN Node; d. The mobile terminal saving the new identifier information.
    Type: Application
    Filed: December 29, 2007
    Publication date: August 8, 2013
    Applicant: ZTE CORPORATION
    Inventors: Zaifeng Zong, Jinguo Zhu
  • Patent number: 8463889
    Abstract: The present invention provides a method for provisioning and installing event triggers, which is applied to an evolved packet system. The method comprises: a policy and charging rules function entity provisions event triggers to a bearer binding and event reporting function entity based on gateway control session level; after receiving the provisioned event triggers, the BBERF installs or updates the event triggers. An evolved packet system is further provided.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: June 11, 2013
    Assignee: ZTE Corporation
    Inventors: Xiaoyun Zhou, Zaifeng Zong
  • Publication number: 20130145038
    Abstract: A method for establishing a session is disclosed, in which the first policy server sends a request message to the second policy server when needing to establish the session with the second policy server, for requesting the second policy server to initiate and establish a session with the first policy server; the second policy server initiates and establishes the session with the first policy server, based on the request message. A system for establishing a session is also disclosed. With the disclosure, even if the first policy server cannot establish a session with the second policy server, it may send a request to the second policy server, for requesting the second policy server to establish the session. Therefore, the session is established more flexibly. In addition, in the case that the session established by the second policy server is applicable to policy control, the effectiveness of session establishment is improved.
    Type: Application
    Filed: August 1, 2011
    Publication date: June 6, 2013
    Applicant: ZTE CORPORATION
    Inventors: Xiaoyun Zhou, Zaifeng Zong
  • Publication number: 20130115914
    Abstract: A control method for H(e)NB access and a H(e)NB gateway are provided in the present invention. The method includes the following steps: a H(e)NB gateway interacting with a Broadband Policy Control Framework (BPCF) through a H(e)NB policy function, and requesting for the admission control of a fixed broadband access network; the BPCF returning the result of the admission control to the H(e)NB gateway through the H(e)NB policy function. The present invention performs policy control for the service access of the User Equipment (UE) accessing via the H(e)NB.
    Type: Application
    Filed: June 23, 2011
    Publication date: May 9, 2013
    Applicant: ZTE CORPORATION
    Inventors: Xiaoyun Zhou, Zaifeng Zong
  • Patent number: 8438290
    Abstract: A method for selecting a policy and charging rules function entity in the non-roaming scenario includes the following steps: when a diameter routing agent DRA receives an indication message of the IP connectivity access network IP-CAN session establishment, the indication message is forwarded to a PCRF according to the related relationship which is set up and saved for allocating the policy and charging rules function PCRF entity to the IP-CAN session; and the corresponding policy and charging control PCC policy, which is made for the IP-CAN session by the PCRF, is forwarded to the provider's IP application function AF and the network element, which has policy and charging enforcement function, corresponding to the IP-CAN session.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: May 7, 2013
    Assignee: ZTE Corporation
    Inventors: Tong Rui, Zaifeng Zong, Xiaoyun Zhou, Jinguo Zhu, Jun Song
  • Publication number: 20130058312
    Abstract: The disclosure discloses a method, an apparatus and a system for processing local address in an offload connection. The method includes the following steps: a local gateway or a mobility management entity sends a local gateway identifier to a wireless side network element (S702); the wireless side network element obtains the local address of the local gateway by using the local gateway identifier (S704). The disclosure avoids potential safety hazard.
    Type: Application
    Filed: April 1, 2011
    Publication date: March 7, 2013
    Applicant: ZTE Plaza
    Inventors: Na Zhou, Zaifeng Zong, Shuang Liang, Jing Wang
  • Publication number: 20130021916
    Abstract: The disclosure provides a method and system for obtaining network loads, comprising: a Load Detection Function (LDF) detects the user plane data of User Equipment (UE) and reports the load condition of a network which the UE currently accesses to a policy server according to the detected congestion indication. With the method in the disclosure, the policy server obtains the network loads condition, so that the quality of service is guaranteed.
    Type: Application
    Filed: March 14, 2011
    Publication date: January 24, 2013
    Applicant: ZTE Corporation
    Inventors: Xiaoyun Zhou, Zaifeng Zong
  • Patent number: 8326263
    Abstract: A method for selecting a policy and charging rules function. When a UE accesses a 3GPP system through a roaming architecture, upon receiving a session establishment request message sent by a PCC client located in the visited network, the DRA in the visited network forwards the message to a selected PCRF of the visited network according to the records stored locally or instructs the PCC client to transmit the session establishment request message to the selected PCRF of the visited network; and the PCRF of the visited network forwards the session establishment request message to a DRA of a home network, then the DRA of the home network forwards the message to the selected PCRF of the home network according to the records stored locally or instructs the PCRF of the visited network to transmit the session establishment request message to the selected PCRF of the home network.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: December 4, 2012
    Assignee: ZTE Corporation
    Inventors: Xiaoyun Zhou, Zaifeng Zong, Tong Rui, Jinguo Zhu
  • Publication number: 20120300638
    Abstract: 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: Application
    Filed: January 26, 2011
    Publication date: November 29, 2012
    Applicant: ZTE CORPORATION
    Inventors: Na Zhou, Jing Wang, Shuang Liang, Zaifeng Zong, Yingzhe Wu
  • Publication number: 20120233337
    Abstract: The disclosure discloses a method for Policy and Charging Control (PCC) based on a time period, which comprises: when a Policy and Charging Rule Function (PCRF) entity provides Quality of Service (QoS) rules to a Bearer Binding and Event Reporting Function (BBERF) entity, a time indication of activation and/or deactivation of the QoS rules is provided at the same time. The disclosure also discloses a system for PCC based on a time period, which comprises: a providing unit located in the PCRF entity and configured to provide QoS rules and a time indication of activation and/or deactivation of the QoS rules to the BBERF entity at the same time. The disclosure ensures the consistency between the time of activating the QoS rules by the BBERF entity and the time of activating the PCC rules by the Policy and Control Enforcement Function (PCEF) entity, and the technical scheme is simple and practical.
    Type: Application
    Filed: May 20, 2010
    Publication date: September 13, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xiaoyun Zhou, Zaifeng Zong, Jinhua Wu
  • Publication number: 20120233325
    Abstract: The present disclosure discloses a method for implementing usage monitoring control, a total allowanced usage is prestored in a Subscription Profile Repository (SPR), the SPR sets an allowanced usage threshold according to a request from a Policy and Charging Rules Function (PCRF) and distributes the set allowanced usage threshold to the PCRF; the PCRF makes a usage monitoring policy according to the obtained allowanced usage threshold; after receiving a usage report of the PCRF, the SPR deducts a consumed usage from the total allowanced usage shared by multiple users. The present disclosure also provides a system for implementing usage monitoring control. Through the solution of the present disclosure, when multiple users share a total allowanced usage, PCRF simultaneously monitors the usage on the multiple users according to the total allowanced usage, thereby avoiding conflicts in policy and charging controls.
    Type: Application
    Filed: November 15, 2010
    Publication date: September 13, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xiaoyun Zhou, Zaifeng Zong, Jinhua Wu
  • Publication number: 20120218974
    Abstract: 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: Application
    Filed: October 18, 2010
    Publication date: August 30, 2012
    Applicant: ZTE CORPORATION
    Inventors: Na Zhou, Shuang Liang, Jing Wang, Zaifeng Zong, Yuzhen Huo
  • Publication number: 20120207104
    Abstract: 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: Application
    Filed: October 28, 2010
    Publication date: August 16, 2012
    Applicant: ZTE CORPORATION
    Inventors: Shuang Liang, Na Zhou, Yuzhen Huo, Jing Wang, Zaifeng Zong
  • Publication number: 20120185576
    Abstract: The present invention discloses a method and an apparatus for acquiring machine type communication device group identification. This method comprises: acquiring the MTC device group identification from a user database by a mobility management network element after the user database subscribes to the MTC device group identification. With the present invention, the problem for transmitting the MTC device group identification in the network in related art is solved.
    Type: Application
    Filed: September 25, 2010
    Publication date: July 19, 2012
    Applicant: ZTE CORPORATION
    Inventors: Aiyan Qu, Zhijun Li, Zaifeng Zong
  • Publication number: 20120170495
    Abstract: 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: Application
    Filed: December 21, 2009
    Publication date: July 5, 2012
    Applicant: ZTE CORPORATION
    Inventors: Na Zhou, Shuang Liang, Jing Wang, Yuzhen Huo, Zaifeng Zong
  • Publication number: 20120163300
    Abstract: 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: Application
    Filed: August 13, 2010
    Publication date: June 28, 2012
    Applicant: ZTE Corporation
    Inventors: Jing Wang, Yuzhen Huo, Na Zhou, Zaifeng Zong
  • Publication number: 20120142311
    Abstract: 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: Application
    Filed: April 22, 2010
    Publication date: June 7, 2012
    Applicant: ZTE CORPORATION
    Inventors: Tong Rui, Na Zhou, Zaifeng Zong
  • Publication number: 20120124220
    Abstract: A method for performing policy and charging control in different roaming scenarios includes: establishing multiple Packet Data Network (PDN) connections to the same Access Point Name (APN), and performing relocation of a Bearer Binding and Event Report Function (BBERF) after establishing multiple PDN connections to the same APN. This method implements the policy and charging control on multiple PDN connections established to one APN in the roaming scenarios of the home routed and local breakout.
    Type: Application
    Filed: December 3, 2009
    Publication date: May 17, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xiaoyun Zhou, Zaifeng Zong, Tong Rui
  • Publication number: 20120117251
    Abstract: The invention provides a method for a Bearer Binding and Event Report Function (BBERF) relocation, which is used in a process of the BBERF relocation after establishing a first Internet Protocol (IP) Connectivity Access Network (IP-CAN) session for User Equipment (UE) and establishing a first gateway control session, a first Gx session, an S9 session and a first subsession of the S9 session which are used to perform policy control to said first IP-CAN session in an Evolved Packet System. In the process of the BBERF relocation, a subsession of the S9 session established before handover of UE is linked to the gateway control session established between the destination BBERF and the visited PCRF and the corresponding Gx session according to the session identity information, thereby achieving deferred linking of policy and charging sessions in roaming scenarios of home routed and local breakout.
    Type: Application
    Filed: December 3, 2009
    Publication date: May 10, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xiaoyun Zhou, Zaifeng Zong
  • Publication number: 20120110193
    Abstract: The present invention discloses a method for a bearer binding and event report function relocation so as to implement deferred linking of the policy and charging control session in the roaming scenario. The present invention implements the deferred linking of the policy and charging control session in roaming scenarios of home roaming and local breakout by establishing a new subsession of the S9 session between a visited PCRF and a home PCRF in a process of the BBERF relocation, and linking the new subsession of the S9 session to the Gxx session established between the destination BBERF and the visited PCRF and the corresponding Gx session.
    Type: Application
    Filed: December 7, 2009
    Publication date: May 3, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xiaoyun Zhou, Zaifeng Zong