Patents by Inventor Yazhu Ke

Yazhu Ke 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: 20130136070
    Abstract: Disclosed are a terminal and a grant processing method therefor. The method includes: when a terminal carries out the 16 quadrature amplitude modulation (16QAM) operation, if an absolute grant is mapped by using absolute grant value mapping relationship table 1, then scheduling grant table 1 will be utilized to update a serving grant; and if the absolute grant is mapped by using absolute grant value mapping relationship table 2, then scheduling grant table 2 will be utilized to update the serving grant. By way of the present invention, the boundaries of various tables match each other as far as possible, thereby the performance problem appearing during the engineering application can be solved, improving the performance of high speed uplink packet access (HSUPA) technology during engineering application.
    Type: Application
    Filed: June 13, 2011
    Publication date: May 30, 2013
    Applicant: ZTE CORPORATION
    Inventors: Xiang Cheng, Yazhu Ke, Lin Liu
  • Patent number: 8452007
    Abstract: A security key generating method, device and system are provided, wherein, the method is used for generating a security key in the process of the handover to an EUTRAN network from other network, the method includes: an MME generates a security key based on a root key KASME of the EUTRAN network, a specific value and/or other parameters and transmits a handover request message carrying the security key to a target evolved Node B, i.e. eNB; a UE generates the security key which used by the target eNB based on the root key KASME of the EUTRAN network, the specific value and/or other parameters. The application of the present invention adopts a specific value, KASME and/or other parameters to output a security key, which can solve the problem existed in the related technology, the problem is that the middle security key used by access layer while handover between different access system can not be generated, and then it can not realize the security protection of the access layer.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: May 28, 2013
    Assignee: ZTE Corporation
    Inventors: Lu Gan, Zhongda Du, Xiang Cheng, Yazhu Ke
  • Publication number: 20130128827
    Abstract: A method and a system for configuring an enhanced dedicated channel transmission bearer mode are provided by the present invention. The method comprises: in a situation that a first radio network controller (RNC) establishes an enhanced dedicated channel cell over a non-main carrier frequency layer in a predetermined network element, the first RNC configuring an enhanced dedicated channel transmission bearer mode of the predetermined network element, wherein the predetermined network element comprises at least one of the following: a node B connected to the first RNC and a second RNC connected to the first RNC. The present solution solves the problem in the related art that: the radio network controller cannot distinguish the received data from a main carrier and the received data from an auxiliary carrier.
    Type: Application
    Filed: July 22, 2010
    Publication date: May 23, 2013
    Applicant: ZTE CORPORATION
    Inventors: Xiang Cheng, Lin Liu, Yazhu Ke
  • Publication number: 20130107815
    Abstract: A method and a system for controlling a compressed mode in a macro-diversity state are provided by the disclosure, wherein the method comprises that a terminal and a serving node B determine a compressed mode, wherein the compressed mode comprises: transmission gap pattern sequence information; the terminal and the serving node B start or stop the compressed mode, the terminal or the serving node B indicates a current compressed mode state to a related node B, and the related node B performs compressed mode operation according to the current compressed mode state. According to the disclosure, the problem that the execution state of the compressed mode of the terminal and a network side cannot be synchronized is solved, normal operation of the compressed mode of the terminal is guaranteed, and the service quality of the terminal and the performance of the system are improved.
    Type: Application
    Filed: May 12, 2011
    Publication date: May 2, 2013
    Inventors: Lin Liu, Xiang Cheng, Yazhu Ke
  • Patent number: 8374598
    Abstract: The present invention discloses a method for a drift radio network controller (DRNC) to report that the transmission interval is not supported, in which, the DRNC reports the information that the cell does not support enhanced-dedicated channel (E-DCH transmission interval to the service radio network controller (SRNC) through signaling when the DRNC detects that its administrative cell does not support E-DCH transmission interval. By reporting the information that the administrative cell of the DRNC does not support E-DCH 2 ms transmission interval to the SRNC by the DRNC, the present invention enables the SRNC to obtain the information and accordingly to take part in making decision of stopping a user equipment from using the E-DCH 2 ms transmission interval or deleting the cell link that does not support the E-DCH 2 ms transmission interval, thus ensures normal communication of the user equipment.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: February 12, 2013
    Assignee: ZTE Corporation
    Inventor: Yazhu Ke
  • Patent number: 8374151
    Abstract: A method and system for acquiring continuous packet connectivity technology support capability information.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: February 12, 2013
    Assignee: ZTE Corporation
    Inventor: Yazhu Ke
  • Publication number: 20120314684
    Abstract: The present invention discloses a method, a system and a C-RNC for determining the support capability of a local cell, the method comprising the following steps of: a controlling radio network controller (C-RNC) receiving from a node B capability support information about the local cell of the node B, wherein the capability support information comprises uplink multi-carrier capability support information and shared interconnection of type B (IUB) transport bearer capability support information; and the C-RNC determining by default that the local cell supports a separate IUB transport bearer, and determining an uplink multi-carrier support capability and a shared IUB transport bearer support capability of the local cell according to the capability support information. The present invention accelerates the processing of the C-RNC, thereby improving the system performance.
    Type: Application
    Filed: August 22, 2012
    Publication date: December 13, 2012
    Inventors: Xiang CHENG, Lin Liu, Yazhu Ke
  • Patent number: 8320311
    Abstract: A method and system for establishing high-speed downlink shared channel, wherein the method comprises the following steps: RNC indicates Node B to establish high-speed downlink shared channel between the Node B and terminal; in response to the indication of the RNC, the Node B establishes high-speed downlink shared channel between the Node B and the terminal by using the preset high-speed downlink shared channel physical layer category; the terminal establishes radio resource control connection between the terminal and the RNC and returns information on the actual high-speed downlink shared channel physical layer category of the terminal to the RNC; and the RNC judges whether the actual high-speed downlink shared channel physical layer category of the terminal is identical with the preset high-speed downlink shared channel physical layer category, and if not, the RNC indicates the Node B to reestablish high-speed downlink shared channel between the Node B and the terminal by using the actual high-speed downli
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: November 27, 2012
    Assignee: ZTE Corporation
    Inventors: Xiang Cheng, Yazhu Ke
  • Publication number: 20120294242
    Abstract: The disclosure provides a method for identifying the transport bearer capacity of the IUR interface, in which a serving radio network controller (RNC) identifies a cell as supporting “separated IUR transport bearer” and “shared IUR transport bearer” when determining the cell supports “uplink multi-carrier”, and identifies the cell as supporting the “separated IUR transport bearer” and not supporting the “shared IUR transport bearer” when determining the cell does not support the “uplink multi-carrier”. The disclosure also provides a system for identifying the transport bearer capacity of the IUR interface.
    Type: Application
    Filed: August 23, 2010
    Publication date: November 22, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xiang Cheng, Lin Liu, Yazhu Ke
  • Publication number: 20120287873
    Abstract: A method for data transmission in a communication system is disclosed in the present invention. The method includes: after the radio access network and the core network finish the initialization, the core network initiates a public bearer establishment or the radio access network requests to establish the public bearer, and the radio access network and the core network establish the public bearer there between; and the radio access network and the core network transmit uplink data and/or downlink data of multiple machine type communication (MTC) equipment by using the public bearer. A system for data transmission in a communication system is also disclosed in the present invention.
    Type: Application
    Filed: August 31, 2010
    Publication date: November 15, 2012
    Applicant: ZTE CORPORATION
    Inventors: Lin Liu, Xiang Cheng, Yazhu Ke
  • Publication number: 20120269119
    Abstract: A method for transmitting multi-carrier enhanced dedicated channel data, comprising a first sending step and a first receiving step, wherein the first sending step comprises: when a node B only has an enhanced dedicated channel cell of a single carrier frequency layer in the multi-carrier, setting “uplink multiplexing information” in an enhanced dedicated channel uplink data frame as “null” and sending it to a serving radio network controller; the first receiving step comprises: the serving radio network controller receiving the enhanced dedicated channel uplink data frame sent by the node B of sender which only has the enhanced dedicated channel cell of a single carrier frequency layer in the multi-carrier, and distinguishing which carrier in the multi-carrier is the carrier for receiving data carried in the enhanced dedicated channel uplink data frame based on carrier identifier information corresponding to carrier frequency of the enhanced dedicated channel cell recorded.
    Type: Application
    Filed: August 19, 2010
    Publication date: October 25, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xiang Cheng, Lin Liu, Yazhu Ke
  • Publication number: 20120224520
    Abstract: The invention provides a method and a device for confirming a downlink inner loop power control mode by a Node B in an idle mode and in a CELL_FACH state. The method includes that: when the Node B detects that there is User Equipment (UE) using an E-DCH in the idle mode or in the CELL_FACH state, confirming to use a mode 0 to receive Transmit Power Control (TPC) bit information sent on a Dedicated Physical Control Channel (DPCCH) by the UE, and performing downlink inner loop power control on a Fractional Dedicated Physical Channel (F-DPCH). The method and device provided in the invention enable the inner loop power control mode for the F-DPCH made by the Node B to be consistent with the TPC bit information mode fed back by the UE, and enable the F-DPCH to use proper transmit power to transmit.
    Type: Application
    Filed: August 17, 2010
    Publication date: September 6, 2012
    Applicant: ZTE CORPORATION
    Inventors: Yazhu Ke, Xiang Cheng, Lin Liu
  • Publication number: 20120218940
    Abstract: A method for determining a slot format of an F-DPCH is disclosed in the present disclosure, including: a Node B using No.0 slot format of the F-DPCH as the slot format for transmitting information over the F-DPCH when detecting that a UE in CELL_FACH state or idle mode is using an E-DCH. An apparatus for determining a slot format of an F-DPCH is also disclosed. The present disclosure ensures that the slot format of the F-DPCH transmitted by the Node B is identical with that of the F-DPCH received by the UE, so that the UE can correctly receive the TPC bits carried on the F-DPCH, and thus the UE can use the TPC bits to implement inner loop power control. Therefore, the Node B can correctly receive the data information transmitted over an E-DPDCH.
    Type: Application
    Filed: November 9, 2009
    Publication date: August 30, 2012
    Applicant: ZTE CORPORATION
    Inventors: Yazhu Ke, Xiang Cheng
  • Publication number: 20120170527
    Abstract: The present invention discloses a method and an apparatus for obtaining the Hybrid Automatic Repeat Request (HARQ) information of a CCCH, wherein the method for obtaining the HARQ information of the CCCH comprises: a base station receiving a request message from a Radio Network Controller (RNC), wherein the request message is used to indicate the HARQ information used by the CCCH; the base station obtaining the HARQ information used by the CCCH according to the request message.
    Type: Application
    Filed: August 10, 2010
    Publication date: July 5, 2012
    Applicant: ZTE CORPORATION
    Inventors: Yazhu Ke, Xiang Cheng
  • Publication number: 20120170544
    Abstract: The present invention discloses a method and system for transmitting multi-carrier uplink data at a network side. The method comprises: whenever setting up or adding a multi-carrier enhanced dedicated channel cell, a radio network controller notifying a NodeB dominating the multi-carrier enhanced dedicated channel cell of carrier identifier information of a carrier corresponding to the multi-carrier enhanced dedicated channel cell; and whenever receiving data transmitted by a terminal using a multi-carrier high-speed uplink packet access technique in the multi-carrier enhanced dedicated channel cell via the carrier, the NodeB carrying the carrier identifier information of the carrier bearing the data in enhanced dedicated channel uplink data frames when constructing the enhanced dedicated channel uplink data frames, and transmitting the constructed enhanced dedicated channel uplink data frames to the radio network controller.
    Type: Application
    Filed: August 17, 2010
    Publication date: July 5, 2012
    Applicant: ZTE Corporation
    Inventors: Xiang Cheng, Lin Liu, Yazhu Ke
  • Publication number: 20120163308
    Abstract: The present disclosure discloses a method for mapping a logical channel to a Media Access Control (MAC) flow, the method includes: a Radio Network Controller (RNC) informs a User Equipment (UE) of corresponding relationship between a Common Control Channel (CCCH) and an Enhanced-Dedicated Channel (E-DCH) MAC flow through signaling; the UE receives the signaling, and obtains the corresponding relationship between the CCCH and the E-DCH MAC flow. The present disclosure further discloses a system for mapping a logical channel to an MAC flow. Through the method and system disclosed in the present disclosure, it is convenient for both a Node B (NodeB) and UE can accurately obtain the corresponding relationship between the CCCH and the E-DCH MAC flow, which ensures the NodeB decodes correctly, thus improving the success rate in receiving signaling and data.
    Type: Application
    Filed: January 14, 2010
    Publication date: June 28, 2012
    Applicant: ZTE CORPORATION
    Inventors: Yazhu Ke, Jianwu Dou
  • Publication number: 20110310997
    Abstract: A method for user equipment entering discontinuous reception status, wherein the process of the user equipment side includes: the user equipment starts a timer for entering the discontinuous reception status when the user equipment receives downlink data or uplink grant; the user equipment enters the discontinuous reception status when the timer expires; wherein before the timer expires, if the user equipment receives new downlink data or uplink grant, the user equipment restarts the timer.
    Type: Application
    Filed: April 3, 2008
    Publication date: December 22, 2011
    Inventors: Yazhu Ke, Zhongda Du
  • Publication number: 20110033053
    Abstract: A security key generating method, device and system are provided, wherein, the method is used for generating a security key in the process of the handover to an EUTRAN network from other network, the method includes: an MME generates a security key based on a root key KASME of the EUTRAN network, a specific value and/or other parameters and transmits a handover request message carrying the security key to a target evolved Node B, i.e. eNB; a UE generates the security key which used by the target eNB based on the root key KASME of the EUTRAN network, the specific value and/or other parameters. The application of the present invention adopts a specific value, KASME and/or other parameters to output a security key, which can solve the problem existed in the related technology, the problem is that the middle security key used by access layer while handover between different access system can not be generated, and then it can not realize the security protection of the access layer.
    Type: Application
    Filed: December 30, 2008
    Publication date: February 10, 2011
    Applicant: ZTE CORPORATION
    Inventors: Lu Gan, Zhongda Du, Xiang Cheng, Yazhu Ke
  • Publication number: 20100278074
    Abstract: A method for configuring an absolute grant mapping relationship table for a base station, comprises: a radio network controller notifying the base station of the absolute grant mapping relationship table used by an enhanced dedicated channel absolute grant channel (E-AGCH) through a signaling, and the base station returning a response message to the radio network controller after storing the configured information. The present invention allows the absolute grant mapping relationship table used by the base station to be consistent with an absolute grant mapping relationship table of which a user equipment is notified via the air interface to use, so as to ensure that the absolute grant values corresponding to the base station and the user equipment are obtained from the same absolute grant mapping relationship table, and allocation and use of the power resource by the base station and the user equipment are consistent.
    Type: Application
    Filed: December 10, 2007
    Publication date: November 4, 2010
    Applicant: ZTE CORPORATION
    Inventors: Yazhu Ke, Qiang You
  • Publication number: 20100260104
    Abstract: A method for configuring an absolute grant mapping relationship table for a drift radio network controller, comprises: a serving radio network controller informing the drift radio network controller of the absolute grant mapping relationship table used by an enhanced-dedicated channel absolute grant channel (E-AGCH) by signaling; and the drift radio network controller returning a response message to the serving radio network controller after storing the information configured. The present invention guarantees that absolute grant values corresponding to the Node B and the user equipment are obtained from the same absolute grant mapping relationship table, i.e. from the same table of relationships between absolute grant values and indexes, and the allocation and use of the power resource by them are consistent, so that efficient use of resources and security of the system are guaranteed.
    Type: Application
    Filed: December 10, 2007
    Publication date: October 14, 2010
    Applicant: ZTE CORPORATION
    Inventors: Yazhu Ke, Qiang You