Patents by Inventor Hongzhuo Zhang

Hongzhuo Zhang 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).

  • Patent number: 8270371
    Abstract: A method and an apparatus for non-access stratum (NAS) message processing during handover in an evolved network are provided. The method includes the following steps. An evolved packet core (EPC) receives a message which indicates that a UE is being handed over sent by a source evolved NodeB (S-eNB), and stops sending an NAS message to the UE temporarily. The EPC receives a message which indicates that the UE returns to an S-eNB service area sent by the S-eNB. The EPC sends the NAS message to the UE through the S-eNB, if needed. With the method and the apparatus, the EPC can acquire a location of the UE in time in the case of a handover failure of the UE, a time limit of a retransmission timer is set precisely, and a specific implementation for forwarding an NAS message through an X2 interface is provided.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: September 18, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hongzhuo Zhang, Yong Qiu, Ying Huang, Qiang Wang
  • Publication number: 20120088457
    Abstract: Embodiments of the present invention provide a Minimizing Drive Test (MDT) logging measurement method and device. The method includes: generating MDT logging measurement configuration information; and sending the MDT logging measurement configuration information to an active User Equipment (UE) and/or an idle UE according to a predetermined rule. Through the solutions provided in the embodiments of the present invention, a commercial UE in an existing network may be utilized to assist in locating a network problem, thus reducing a Drive Test (DT) overhead.
    Type: Application
    Filed: December 16, 2011
    Publication date: April 12, 2012
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Johan Johansson, Hongzhuo Zhang, Dongmei Zhang, Lei Jin, Ying Huang
  • Publication number: 20120026893
    Abstract: A method and an apparatus for non-access stratum (NAS) message processing during handover in an evolved network are provided. The method includes the following steps. An evolved packet core (EPC) receives a message which indicates that a UE is being handed over sent by a source evolved NodeB (S-eNB), and stops sending an NAS message to the UE temporarily. The EPC receives a message which indicates that the UE returns to an S-eNB service area sent by the S-eNB. The EPC sends the NAS message to the UE through the S-eNB, if needed. With the method and the apparatus, the EPC can acquire a location of the UE in time in the case of a handover failure of the UE, a time limit of a retransmission timer is set precisely, and a specific implementation for forwarding an NAS message through an X2 interface is provided.
    Type: Application
    Filed: October 7, 2011
    Publication date: February 2, 2012
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hongzhuo ZHANG, Yong QIU, Ying HUANG, Qiang WANG
  • Publication number: 20120021749
    Abstract: A communication system, a network handover processing method and a network handover processing apparatus are disclosed. The method includes the following steps: receiving, by a target evolved NodeB (T-eNB), identity information sent from a user equipment (UE), the identity information being allocated to the UE by a source evolved NodeB (S-eNB); and sending, by the T-eNB, parameters to the UE if identity information, matching the received identity information sent from the UE, is available in the T-eNB, wherein the parameters are allocated to the UE. The apparatus includes a receiving module and a sending module. The communication system, network handover processing method and network handover processing apparatus can reduce the state change times of the UE in the network handover process and save the system resources.
    Type: Application
    Filed: September 29, 2011
    Publication date: January 26, 2012
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yong QIU, Min HUANG, Ying HUANG, Hongzhuo ZHANG
  • Publication number: 20110306363
    Abstract: The present invention relates to the field of mobile communication technologies, and discloses a method, an apparatus, and a system for optimizing a tracking area, and a method, an apparatus, and a system for updating a tracking area. The method for optimizing a tracking area includes the following steps: an Operation, Administration and Maintenance entity obtains an optimization threshold, and performs a tracking area optimization according to the optimization threshold. With the present invention, the Operation, Administration and Maintenance entity can optimize the tracking area automatically.
    Type: Application
    Filed: August 24, 2011
    Publication date: December 15, 2011
    Inventors: Xuelong WANG, Hongzhuo Zhang, Binsong Tang, Yang He, Xiaoli Shi, Shlai Zhu
  • Publication number: 20100142367
    Abstract: A method and an apparatus for non-access stratum (NAS) message processing during handover in an evolved network are provided. The method includes the following steps. An evolved packet core (EPC) receives a message which indicates that a UE is being handed over sent by a source evolved NodeB (S-eNB), and stops sending an NAS message to the UE temporarily. The EPC receives a message which indicates that the UE returns to an S-eNB service area sent by the S-eNB. The EPC sends the NAS message to the UE through the S-eNB, if needed. With the method and the apparatus, the EPC can acquire a location of the UE in time in the case of a handover failure of the UE, a time limit of a retransmission timer is set precisely, and a specific implementation for forwarding an NAS message through an X2 interface is provided.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 10, 2010
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hongzhuo ZHANG, Yong QIU, Ying HUANG, Qiang WANG
  • Publication number: 20100113033
    Abstract: A communication system, a network handover processing method and a network handover processing apparatus are disclosed. The method includes the following steps: receiving, by a target evolution NodeB (T-eNB), identity information sent from a user equipment (UE), the identity information being allocated to the UE by a source evolution NodeB (S-eNB); and sending, by the T-eNB, parameters to the UE if identity information, matching the received identity information sent from the UE, is available in the T-eNB, wherein the parameters are allocated to the UE. The apparatus includes a receiving module and a sending module. The communication system, network handover processing method and network handover processing apparatus can reduce the state change times of the UE in the network handover process and save the system resources.
    Type: Application
    Filed: January 7, 2010
    Publication date: May 6, 2010
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Yong Qiu, Min Huang, Ying Huang, Hongzhuo Zhang
  • Publication number: 20090219890
    Abstract: A method, apparatus and system for establishing S1 signaling connections in an evolved network are disclosed. A source evolved NodeB (eNodeB) sends a HANDOVER REQUEST message that carries original S1 signaling connection parameter information to a target eNodeB to initiate a process that a user equipment (UE) is handed over to the target eNodeB. When the UE enters the target cell, the target eNodeB allocates a new S1 signaling connection parameter and sends a HANDOVER COMPLETE message that carries the original S1 signaling connection parameter and the new S1 signaling connection parameter of the new eNodeB to an evolved packet core (EPC). The EPC receives the HANDOVER COMPLETE message that carries the new S1 signaling connection parameter and the original S1 signaling connection parameter. With the present disclosure, the inability of the target eNodeB to establish an S1 signaling connection with the EPC in the related art is effectively solved.
    Type: Application
    Filed: May 15, 2009
    Publication date: September 3, 2009
    Inventors: Hongzhuo ZHANG, Yong Qui