Patents by Inventor Xiaowu Zhao
Xiaowu Zhao 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: 8433806Abstract: A method for rejecting the 1× paging transferred in the High Rate Packet Data network is provided, in which the Secondary Color Code mechanism is applied so that the AN which a MS/AT registers transmits A13-paging request messages to the other neighboring ANs, these ANs page a cell phone together and some new messages are added to improve the rejection flow. When the SC/MM is in the AN of HRPD system, for the MS/AT on the multiple edges of AN, the invention can be ensured that the MS/AT in the idle or dormant state can effectively receive the service paging from 1× network in the multiple edge regions of AN in HRPD and can reject the 1× service according to selection of users, which ensures the ability of dual network operation.Type: GrantFiled: December 21, 2007Date of Patent: April 30, 2013Assignee: ZTE CorporationInventor: Xiaowu Zhao
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Publication number: 20130070684Abstract: The disclosure provides a system, end and method for transmitting 1x messages. The method comprises: when a sending terminal needs to send a plurality of 1x messages to a receiving terminal through a non-1x network, carrying the plurality of 1x messages in one message. With the technical solution of the disclosure, the problem that it is unable to ensure that a plurality of 1x Layer3 messages is transmitted synchronously under the related inter-working situation and the problem of the processing time sequence of messages are solved.Type: ApplicationFiled: April 22, 2011Publication date: March 21, 2013Applicant: ZTE CORPORATIONInventors: Yuanfang Yu, Xiaowu Zhao, Ting Lu, Yonggang Fang
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Publication number: 20130072236Abstract: Apparatuses, techniques, and systems for operating a mobile station with multiple subscriptions includes transmitting a paging message for a subscriber identity of two or more subscriber identities that are associated with a single mobile station over a wireless communication channel based on a paging cycle structure including multiple paging slots. The two or more subscriber identities can include a first subscriber identity and a second, different subscriber identity. Transmitting the paging message can include using, during a paging cycle based on the paging cycle structure, a single paging slot to transmit the paging message, where the single paging slot is associated with the two or more subscriber identities.Type: ApplicationFiled: September 14, 2012Publication date: March 21, 2013Applicant: ZTE (USA) INC.Inventors: Yonggang Fang, Xiaowu Zhao
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Publication number: 20130021957Abstract: Methods, apparatus and systems for group paging of wireless devices are described. A wireless device is associated with a member identifier (MID) that is a unique identifier for the wireless device. The wireless device is associated with a group identifier (GID) that is a unique identifier for a group of which the wireless device is a member. The wireless device is woken up from a sleep mode at a wake-up time based on the GID.Type: ApplicationFiled: July 18, 2012Publication date: January 24, 2013Applicants: ZTE (USA) INC., ZTE CORPORATIONInventors: Yonggang Fang, YuanFang Yu, Ting Lu, Xiaowu Zhao
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Publication number: 20130016640Abstract: Methods, apparatus and systems for enhanced slotted mode operation for wireless communication are disclosed. A first control message indicative of a first sleep cycle duration is received. When the first control message includes a first message field, a second control message that includes a second field indicative of a second sleep cycle duration that is greater than the first sleep cycle duration is transmitted.Type: ApplicationFiled: July 12, 2012Publication date: January 17, 2013Applicants: ZTE (USA) INC., ZTE CORPORATIONInventors: Yonggang Fang, YuanFang Yu, Ting Lu, Xiaowu Zhao
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Patent number: 8290518Abstract: Apparatuses, techniques, and systems for operating a mobile station with multiple subscriptions includes transmitting a paging message for a subscriber identity of two or more subscriber identities that are associated with a single mobile station over a wireless communication channel based on a paging cycle structure including multiple paging slots. The two or more subscriber identities can include a first subscriber identity and a second, different subscriber identity. Transmitting the paging message can include using, during a paging cycle based on the paging cycle structure, a single paging slot to transmit the paging message, where the single paging slot is associated with the two or more subscriber identities.Type: GrantFiled: February 5, 2010Date of Patent: October 16, 2012Assignee: ZTE (USA) Inc.Inventors: Yonggang Fang, Xiaowu Zhao
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Patent number: 8274982Abstract: A packet data session release method for ultra mobile broadband access network is disclosed, and which includes: S402, when releasing the packet data session, an access gateway sends a proxy mobile IP registration revocation message to the data attachment point of the ultra mobile broadband access network and the evolved base station which has one reverse proxy mobile IP tunnel to the access gateway, respectively; S404, after receiving the proxy mobile IP registration revocation message, the data attachment point and the evolved base station which has one reverse proxy mobile IP tunnel to the access gateway, delete their proxy mobile IP tunnels between them and the access gateway, respectively, and send a proxy mobile IP revocation ACK message to the access gateway, respectively, so as to confirm the reception of the registration request messages; and S406, the data attachment point notifies the session reference network controller that the packet data session has been released, via sending a IP tunnel notifiType: GrantFiled: March 26, 2008Date of Patent: September 25, 2012Assignee: ZTE CorporationInventors: Xiaowu Zhao, Kexue Lu, Yuanfang Yu
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Publication number: 20120236822Abstract: Techniques for the inter-operation of base station having different protocol revision numbers include broadcasting a first message that includes a protocol revision field indicating a same revision as a legacy network, transmitting a second message over a forward link common control channel, the second message indicating advanced radio configuration (RC) capabilities beyond radio control capabilities implied by the protocol revision field broadcast in the first message, receiving, in response to the second message, a third message from a mobile station, indicating that the mobile station supports the advanced RC capabilities and establishing, with the mobile station, a radio link having the advanced RC capabilities.Type: ApplicationFiled: March 13, 2012Publication date: September 20, 2012Applicants: ZTE (USA) INC., ZTE CORPORATIONInventors: Yonggang Fang, YuanFang Yu, Xiaowu Zhao, Ting Lu
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Publication number: 20120224561Abstract: Techniques for facilitating wireless communication include receiving a message from a mobile station, the message comprising a service option field indicative of an advanced radio configuration capability of the mobile station and establishing a radio link between the mobile station and the serving base station, by using the indicated advanced radio configuration capability. In some implementations, in a CDMA2000 network, a Revision E compliant mobile station is able to operate in Revision E mode with a Revision E base station and a legacy mode with a legacy base station, without being affected by a handoff and without a need to modify bit length of the revision field in the paging response message from the mobile station.Type: ApplicationFiled: March 1, 2012Publication date: September 6, 2012Applicants: ZTE (USA) INC., ZTE CORPORATIONInventors: Yonggang Fang, YuanFang Yu, Xiaowu Zhao, Ting Lu
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Patent number: 8224323Abstract: Techniques and systems that provide timer based registration for efficiently registering access terminals with a wireless network are described. A timer is provided for an access terminal to register with the network. When the timer expires, the access terminal performs a timer based registration process if a currently serving base station is not the same as a base station that serves the access terminal when the access terminal completes the last timer based registration process, and avoids performing another timer based registration process if the currently serving base station is the same as a base station that serves the access terminal when the access terminal completes the last timer based registration process. The access terminal resets the timer if the currently serving base station is the same as a base station that served the access terminal when the access terminal completes the last timer based registration process.Type: GrantFiled: May 9, 2008Date of Patent: July 17, 2012Assignee: ZTE (USA) Inc.Inventors: YuanFang Yu, Xiaowu Zhao, Rajesh Bhalla, Yonggang Fang
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Publication number: 20120176901Abstract: The present invention discloses a method for notifying a load-adjustment factor, including: a base station setting a load-adjustment factor of a sector and notifying a user terminal. The present invention also discloses a method for selecting and determining Data Rate Control (DRC) pointing, including: when selecting a sector which a DRC points towards, a user terminal calculating a difference value by deducting the received load-adjustment factor of the sector sent by a base station, from the measured signal measurement strength of the sector; the user terminal determining whether to point the DRC towards the sector according to the signal measurement strength resulted from the deduction.Type: ApplicationFiled: September 15, 2010Publication date: July 12, 2012Applicant: ZTE CORPORATIONInventors: Yonggang Fang, Ting Lu, Yuanfang Yu, Xiaowu Zhao
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Patent number: 8213364Abstract: The invention discloses a method for releasing a high rate packet data (HRPD) session, including the following steps: S302, in the case that the access network (AN) determines to reauthenticate the access terminal (AT), it authenticates the AT via the established connection with the AT; S304, in the case that the reauthentication of the AT is not passed, the AN or the AT initiates the release of the HRPD session; S306, the AN closes the HRPD session with the AT, and sends to the packet control function (PCF) entity a first releasing message indicating of releasing the resource and the connection and starts a first timer; S308, the PCF eneity sends to the packet data service node (PDSN) a second releasing message indicating of releasing the connection and starts a second timer; S310, the PDSN releases the connection and feeds back a second release response message to the PCF entity, and the PCF entity stops the second timer upon receiving the second release response message; S312, the PCF entity sends a firstType: GrantFiled: December 11, 2007Date of Patent: July 3, 2012Assignee: ZTE CorporationInventor: Xiaowu Zhao
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Publication number: 20120149373Abstract: Techniques, apparatuses, and systems for redirecting mobile services include generating a message with a redirection indication and transmitting the message to one or more mobile stations. A redirection indication can include an identifier for a wireless network operator and access information for a network associated with the wireless network operator.Type: ApplicationFiled: February 11, 2010Publication date: June 14, 2012Applicant: ZTE (USA) INC.Inventors: Wei Tian, Dazhong Liu, Zhihui Zhang, YuanFang Yu, Ting Lu, Xiaowu Zhao, Yonggang Fang
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Patent number: 8194650Abstract: The present invention discloses a method for establishing connections in IP flow mapping update in a HRPD network, comprising steps of: (1) when a PCF receives a request for establishing A8 connections that need to be re-mapped, if determining that there is A8 connection supported, sending an A11-registration request to a PDSN; (2) when the PDSN receives the information on A10 connections in the A11-registration request, if determining that there is A10 connection supported, establishing those A10 connections and sending an A11-registration reply; (3) when the PCF receives the reply message, establishing all the A8 connections corresponding to the A10 connections and sending an A9-connect-A8 to the AN; (4) an AT and the AN releasing and removing the IP flow that can not be mapped to any of the A8 connections or resource reserved by the IP flow according to the A9-connect-A8 received.Type: GrantFiled: January 2, 2008Date of Patent: June 5, 2012Assignee: ZTE CorporationInventors: Xiaowu Zhao, Dong Wei
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Publication number: 20120034910Abstract: Wireless communication techniques are provided to receive a service priority scheme selection and determine, during reception of a first service, whether or not to switch to a second service, based on the received service priority scheme selection. Devices, systems and methods can be configured to implement the techniques for service priority scheme selection.Type: ApplicationFiled: May 6, 2011Publication date: February 9, 2012Inventors: Yonggang Fang, Xiaowu Zhao, Ting Lu, YuanFang Yu
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Publication number: 20120028661Abstract: Techniques, apparatuses, and systems include mechanisms for interworking circuit service fallback. In one implementation, a system for wireless communications can include one or more first base stations forming a first radio access network to provide wireless communications based on a first wireless technology; one or more second base stations forming a second radio access network to provide wireless communications based on a second wireless technology which is different from the first wireless technology, and an interworking service (IWS) module that is configured to provide the interworking between the first and second radio access networks for communications to a wireless device served by the system via either the first wireless technology or the second wireless technology, and uses a signal adaptation protocol to encapsulate messages in communicating with a wireless device served by the system. Other implementations are also provided in this document.Type: ApplicationFiled: June 16, 2011Publication date: February 2, 2012Applicants: ZTE CORPORATION, ZTE (USA) INC.Inventors: Yonggang Fang, Rajesh Bhalla, Xiaowu Zhao, Ting Lu, YuanFang Yu
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Patent number: 8107976Abstract: An accounting method for an ultra mobile broadband access network, wherein the method includes: S402, when a data binding point or access gateway AGW triggers a session reference network controller SRNC to initiate the paging to an access terminal AT, the SRNC sends an inter-ANRI signaling paging message to each evolved base station eBS in the paging area of the AT; S404, corresponding to a request from the SRNC, each eBS in the paging area of the AT performs the paging to the AT; S406, the eBS successfully paged an AT establishes the route between the eBS and the AT, creates the Air Link Record for the AT, and sends the accounting request (start) message related to the AT to the AGW serving the AT; and S408, after receiving the accounting request message, the AGW sends an accounting response message to the eBS successfully paged an AT to confirm that the AGW has received the accounting request message.Type: GrantFiled: December 25, 2007Date of Patent: January 31, 2012Assignee: ZTE CorporationInventors: Wei Wang, Ri Yang, Xiaowu Zhao
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Publication number: 20120002667Abstract: The present invention discloses a method for establishing connections in IP flow mapping update in a HRPD network, comprising steps of: (1) when a PCF receives a request for establishing A8 connections that need to be re-mapped, if determining that there is A8 connection supported, sending an A11-registration request to a PDSN; (2) when the PDSN receives the information on A10 connections in the A11-registration request, if determining that there is A10 connection supported, establishing those A10 connections and sending an A11-registration reply; (3) when the PCF receives the reply message, establishing all the A8 connections corresponding to the A10 connections and sending an A9-connect-A8 to the AN; (4) an AT and the AN releasing and removing the IP flow that can not be mapped to any of the A8 connections or resource reserved by the IP flow according to the A9-connect-A8 received.Type: ApplicationFiled: January 2, 2008Publication date: January 5, 2012Applicant: ZTE CORPORATIONInventors: Xiaowu Zhao, Dong Wei
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Publication number: 20110274089Abstract: An active handover method and terminal based on the HRPD system are disclosed by the present invention. The method comprises that: a terminal receives an active handover command, wherein if a virtual connection has existed, the virtual connection is disconnected; and if a virtual connection is being established, the establishment process of the virtual connection is terminated; and High Rate Packet Data air interface connection is established. With the method, processing of the access terminal and the access network is specified, and the problem of long-time interruption in the service of the terminal is solved, processing efficiency of the access terminal and the access network can be improved, thereby improving the processing efficiency of the whole system.Type: ApplicationFiled: September 15, 2009Publication date: November 10, 2011Inventors: Yuanfang Yu, Xiaowu Zhao, Yonggang Fang
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Publication number: 20110261788Abstract: The present invention provides a virtual connection releasing method in an inter-operation network. In the inter-operation network between the Enhanced Universal Terrestrial Radio Access Network (E-UTRAN) and the evolved HRPD (eHRPD) Access Network, a PMIP indication is set for indicating whether the HRPD Serving Gateway HSGW needs to initiate the Proxy Mobile IP (PMIP) binding updating operation or not. When the virtual connection releasing is initiated, the evolved Access Network (eAN) sends the A9-releasing-A8 message, which carries the PMIP indication, to the evolved Packet Control Function (ePCF). After obtaining the PMIP indication through the ePCF, the HRPD Serving Gateway determines whether to initiate the PMIP binding updating operation according to the PMIP indication.Type: ApplicationFiled: September 24, 2009Publication date: October 27, 2011Applicant: ZTE CorporationInventors: Wei Wang, Xiaowu Zhao