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Ling Xu

Ling Xu, Shenzhen City CN

Patent application numberDescriptionPublished
20100115124Method for Improving Transmission Efficiency of Physical Layer Attributes in Wireless Communication System - A method for improving transmission efficiency of physical layer attributes in a wireless communication system is proposed, and the method comprises the following steps of: (a) defining one or more sets of physical layer channel basic attributes that must be supported, and each set being respectively represented by a value of a domain of attributes, that is, a value of Profile; (b) a transmitting apparatus sending a physical layer channel description information, wherein the value of Profile is used to represent the physical layer channel basic attributes supported by the apparatus; (c) after receiving the channel description information, based on the value of Profile within the information, a receiving apparatus judging whether a set of physical layer channel basic attributes corresponding to the value is supported.05-06-2010
20100195534METHOD FOR ACCELERATING TERMINAL OF WIRELESS COMMUNICATION SYSTEM ACCESSING NETWORK - A method for accelerating network accessing of a terminal in a wireless communication system, comprises: a wireless terminal receiving system parameter information, and after obtaining system information of a base station identifier (BS ID) and a network access provider identifier (NAP ID), immediately judging validity of the NAP ID, or validity of both the NAP ID and the BS ID; if a result of the judgment is “valid”, the terminal proceeding to a subsequent flow of the network discovery and selection according to information stored in the terminal, otherwise, carrying out a new flow of network discovery and selection. The method avoids continuing to perform processes such as message receiving and decoding in the case that a NAP ID or a BS ID is invalid according to a flow in the current protocol, thereby increasing the speed of network accessing of a terminal.08-05-2010
20110044228WIRELESS RESOURCE SCHEDULING METHOD AND OCCUPIED INFORMATION SENDING METHOD FOR MULTI BASE STATION MBS - The present invention discloses a method for scheduling wireless resources of a multi-base station MBS and a method for sending occupation information. The scheduling method comprises: dividing wireless resources of downlink sub-frames of all base stations in an MBS Zone into two parts, local service schedulers on the base stations scheduling one part for local services, and a multi-base station MBS resource scheduler in the MBS Zone scheduling the other part for the multi-base station MBS. The sending method comprises: a sender informing a receiver of multi-base station MBS wireless resource occupation situation through a message carrying multi-base station MBS wireless resource occupation information; content of the occupation information including a sending frame offset field, an index field and a resource unit quantity field; and the occupation information including configuration information and a scheduling result. When supporting the macro diversity multi-base station MBS, the present invention not only can avoid the conflict of unicast and MBS scheduling, but also can fully utilize the limited wireless resources of the system.02-24-2011

Ling Xu, Shenzhen CN

Patent application numberDescriptionPublished
20080247372Data Synchronization for Multicast/Broadcast Service in Wireless Relay Network - Wireless communication relay networks and techniques for providing data synchronization in Multicast Broadcast Services (MBS).10-09-2008
20100284369Optimization method of multiple service flows operation for WiMAX system - An optimization method of multiple service flows operation for a WiMAX system includes: adding a resource combination indication to a hand-off request message, a path pre-registration request message and a path registration request message; hand-off request processing: when multiple service flows are handed off by a mobile station from a current serving network to a target network, determining whether the mobile station is allowed to hand off to a target network according to the resource combination indication in the hand-off request message and whether the handoff of the multiple service flows is accepted by the target network; path pre-establishment processing and path establishment processing: when the mobile station is allowed to hand off multiple service flows from the current serving network to the target network, determining whether data paths between the target network and the network where a data management unit is located can be pre-established/established according to the resource combination indication in the path pre-registration request message and the path registration request message and whether the data path pre-registration/registration of the multiple service flows can be established.11-11-2010
20110212727METHOD FOR PROCESSING HANDOFF CONFIRM MESSAGES - The present invention provides a method for processing handoff confirm messages. The method includes the following steps: step S09-01-2011

Patent applications by Ling Xu, Shenzhen CN

Ling Xu, Guangdong Province CN

Patent application numberDescriptionPublished
20090280840METHOD FOR IMPROVING PERFORMANCE OF MOBILE BROADBAND WIRELESS ACCESS SYSTEM - A method for improving performance of mobile broadband wireless access system is disclosed. The method comprises the steps: first, a paging controller controls base stations to transmit paging broadcasting messages to mobile stations; the mobile stations respond to the paging controller through the base station which responds with the mobile stations; then, the paging controller transmits paging notice message to note that the base stations which do not respond with the mobile stations stop transmitting the paging broadcasting messages in the paging group; last, the base stations in the paging group immediately stop transmitting the paging broadcasting messages as to the mobile station, and delete the corresponding data, after they receive the paging notice message which the paging controller transmits. By use of the present method, the base station processing and the storing cost are not remarkably increased, legal-user's paging errors caused by non-legal accessing message are avoided, and the occupying of network wireless resources and system resources can be effectively reduced.11-12-2009
20100069041Method and System for Accelerating Page Accessing in the Wide Band Wireless System - An implementation method and system for accelerating the paging access of a mobile station in broadband wireless system are disclosed, and this system comprises base stations, mobile stations, an anchor access network gateway, an authenticator and a paging controller. The implementation method includes: (a) the anchor access network gateway sends to the base station a Paging Announce message including at least mobile station identifier and the authenticator identifier of the mobile station; (b) the base station keeps the corresponding relationship of the authenticator identifier and the mobile station, and sends a MOS-PAG-ADV message to the mobile station; (c) after the base station receives the RNG-REQ message from the mobile station, it interacts with the authenticator using the authenticator identifier to obtain the authentication key and perform the authentication; and acquire the information of mobile station from the paging controller; (d) before or after the base station requests the anchor access network gateway to establish a data channel, it sends a RNG-RES message to the mobile station; (e) after the anchor access network gateway receives the Data Channel Establishment Acknowledgement message, it informs the paging controller to delete the mobile station information thereon. The present invention can accelerate the process of paging access of the mobile station.03-18-2010
20100202322Method for Terminating Connection to Wireless Relay Station - A method for terminating connections to wireless relay stations (RS), applied in a system comprising a wireless communication network set, which comprises a base station (BS) and RSs subordinated to the base station. The method comprises: (a) a wireless RS, RS08-12-2010
20110188426METHOD FOR ENTERING AN IDLE MODE - A method for entering an idle mode, which is used in a Worldwide Interoperability for Microwave Access system, comprising: during the procedure of a terminal enter to idle mode from active mode, an paging agent of the terminal sending mobility restriction parameters of the terminal to a mobility restriction parameter storage network element; the mobility restriction parameter storage network element saving the mobility restriction parameters; the mobility restriction parameter storage network element being an anchor paging controller, or an anchor authenticator, or a function entity including a function of the anchor paging controller and a function of the anchor authenticator. to save the mobility restriction parameters of a terminal when the terminal enters an idle mode may be achieved by using the method of the present invention, so that a mobility restriction judgment is performed to the terminal in the subsequent process procedure, and the problem of erroneously allowing the terminal to quit from the idle mode and enter an active mode or to update its location when the terminal is in the non-authorized regions can be avoided.08-04-2011

Patent applications by Ling Xu, Guangdong Province CN

Ling Xu, Guangdong CN

Patent application numberDescriptionPublished
20100046396ADAPTIVE MANAGEMENT METHOD FOR WIRELESS TRANSFER NETWORK CONTAINING BASE STATION AND WIRELESS RELAY STATIONS - An adaptive management method for a wireless communication network comprising a base station and wireless relay stations is disclosed, and the method is applied in a wireless communication network group comprising a base station and wireless relay stations subordinated to the base station. The method comprises the following steps of: (a) a management node in the wireless communication network group constructing a wireless network topology information structure of the group; (b) the management node updating the wireless network topology information of the group when a network topology relationship of the wireless communication network group changes; (c) the management node utilizing the wireless network topology information of the group and a corresponding strategy to manage wireless relay stations and mobile terminals subordinated to the management node.02-25-2010
20100054155UPDATE METHOD OF WIRELESS RELAY STATION LINK RELATION - A method for updating a connection relationship of a wireless relay station, comprises the following steps of: (a) a wireless relay station RS03-04-2010
20100142405METHOD FOR JOINING A WIRELESS COMMUNICATION DEVICE TO A WIRELESS TRANSMISSION NETWORK - A method for a device to join a wireless communication network, after the device accesses to the wireless communication network group through a source node, the method comprising the following steps of: (a) if the device needs a handover, completes the handover successfully by accessing to a target node and establishes a service connection, proceeding to step (b), otherwise proceeding to step (c); (b) a management node of the wireless communication network group to which the target node accessed to by the device belongs updating a stored wireless network topology information of the wireless network group, to complete the joining of said wireless communication device, and the method ending; (c) a management node of the wireless communication network group to which the source node accessed to by the device belongs updating a stored wireless network topology information of the wireless communication network group, to complete the joining of said device.06-10-2010
20110122859Method for Sending a Paging Message - The present invention discloses a method for sending a paging message applied to a Worldwide Interoperability for Microwave Access system, wherein an anchoring paging controller sends the paging message only to base stations meeting mobility restrictive conditions, or to base stations which belong to a paging group to which a terminal to be paged belongs and meet the mobility restrictive conditions; and the paging message is a paging starting message or a paging stopping message. Using the method in accordance with the present invention, the paging message can be prevented from sending to the base stations which do not meet the restrictive conditions of the terminal, thus reducing the consumption of the system resources.05-26-2011

Ling Xu, Boyds, MD US

Patent application numberDescriptionPublished
20100129325SENECA VALLEY VIRUS BASED COMPOSITIONS AND METHODS FOR TREATING DISEASE - The present invention relates to a novel RNA picornavirus that is called Seneca Valley virus (“SVV”). The invention provides isolated SVV nucleic acids and proteins encoded by these nucleic acids. Further, the invention provides antibodies that are raised against the SVV proteins. Because SVV has the ability to selectively kill some types of tumors, the invention provides methods of using SVV and SVV polypeptides to treat cancer. Because SVV specifically targets certain tumors, the invention provides methods of using SVV nucleic acids and proteins to detect cancer. Additionally, due to the information provided by the tumor-specific mechanisms of SVV, the invention provides methods of making new oncolytic virus derivatives and of altering viruses to have tumor-specific tropisms.05-27-2010

Ling Xu, Louisville, KY US

Patent application numberDescriptionPublished
20090005623Solid Phosphoric Acid With Controlled Porosity - The present invention relates to a solid phosphoric acid catalyst and a process for conversion of hydrocarbons using a solid phosphoric acid catalyst. The solid phosphoric acid catalyst comprises silicon orthophosphate, and has a silicon orthophosphate to silicon pyrophosphate ratio of at least about 5:1. The total pore volume of the solid phosphoric acid catalyst is at least about 0.17 cm01-01-2009
20100069692Solid Phosphoric Acid with controlled porosity - The present invention relates to a solid phosphoric acid catalyst and a process for conversion of hydrocarbons using a solid phosphoric acid catalyst. The solid phosphoric acid catalyst comprises silicon orthophosphate, and has a silicon orthophosphate to silicon pyrophosphate ratio of at least about 5:1. The total pore volume of the solid phosphoric acid catalyst is at least about 0.17 cm03-18-2010

Ling Xu, Potomoc, MD US

Patent application numberDescriptionPublished
20090214588Vaccines against aids comprising cmv/r-nucleic acid constructs - The present disclosure provides compositions for eliciting an immune response, including a prophylactic immune response, against human immunodeficiency virus. The composition includes nucleic acid constructs encoding HIV antigenic polypeptides of multiple clades or strains. Methods for eliciting an immune response by administering the composition to a subject are also provided.08-27-2009

Ling Xu, Potomac, MD US

Patent application numberDescriptionPublished
20090110690Hiv Gp120 Crystal Structure and Its Use to Identify Immunogens - The present disclosure relates to stabilized forms of the HIV gp120 envelope protein in complex with the broadly neutralizing CD4-binding site antibody b12, to crystalline forms of the stabilized forms of the HIV gp120 envelope protein in complex with the broadly neutralizing CD4-binding site antibody b12, and to the high resolution structure obtained from these crystals by X-ray diffraction methods. Methods for identifying immunogenic polypeptides based on these structures are also disclosed.04-30-2009
20090191235CONFORMATIONALLY STABILIZED HIV ENVELOPE IMMUNOGENS AND TRIGGERING HIV-1 ENVELOPE TO REVEAL CRYPTIC V3-LOOP EPITOPES - Stabilized forms of gp120 polypeptide, nucleic acids encoding these stabilized forms, vectors comprising these nucleic acids, and methods of using these polypeptides, nucleic acids, vectors and host cells are disclosed. Crystal structures and computer systems including atomic coordinates for stabilized forms of gp120, and gp120 with an extended V3 loop, and methods of using these structures and computer systems are also disclosed.07-30-2009
20110200636METHOD FOR IMPROVING THE BREADTH OF THE IMMUNE RESPONSE TO DIVERSE STRAINS AND CLADES OF HIV - The present disclosure provides compositions for eliciting an immune response, including a prophylactic immune response, against human immunodeficiency virus. The composition includes nucleic acid constructs encoding HIV antigenic polypeptides of multiple clades or strains. Methods for eliciting an immune response by administering the composition to a subject are also provided.08-18-2011

Ling Xu, Beijing CN

Patent application numberDescriptionPublished
20110318644AMPHOTERIC ION EXCHANGE MEMBRANES - An amphoteric ion exchange membrane for use in a vanadium redox flow battery has a vanadium ion permeability of less than 10×1012-29-2011