Patents by Inventor Yuan Xia

Yuan Xia 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: 20200204976
    Abstract: Embodiments of this application disclose an offloading method and a related device in a roaming scenario, to prevent traffic of a subscribed service of a roaming subscriber from looping back to a home location, thereby reducing inter-network traffic consumption. The method in this embodiment of this application includes: receiving, by a visited core network control plane V-CP, a first message from a home core network control plane H-CP, where the first message includes a local breakout LBO policy based on a subscribed service, and the subscribed service is a service on which local breakout needs to be performed and that is of a user; and sending, by the V-CP, the LBO policy to a visited core network user plane V-UP, so that the LBO policy is installed on the V-UP to implement local breakout processing for the subscribed service.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventors: Xiang HU, Yuan XIA, Han ZHOU, Quan ZHU
  • Patent number: 10674535
    Abstract: A system and method of subframe configuration in licensed-assisted access using long-term evolution (LAA-LTE) with carrier aggregation (CA). A wireless device such as an eNodeB (eNB) may transmit control information in a subframe from a secondary cell (SCell) in downlink control information (DCI) to a user equipment (UE). The SCell may operate in an unlicensed band. The control information may indicate at least one of a non-ending subframe in a data burst, an ending subframe, and a duration of the ending subframe. The duration may be one of a predefined number of orthogonal frequency-division multiplexing (OFDM) symbol durations, and the ending subframe may be a partial or full subframe. A partial ending subframe may use a time slot structure in a time division duplexing (TDD) scheme, e.g., downlink pilot time slots (DwPTS). The eNB may then transmit to the UE data in the subframe according to the control information.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: June 2, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jialing Liu, Weimin Xiao, Yuan Xia
  • Patent number: 10650236
    Abstract: A road detection method and apparatus. A specific embodiment of the method includes: acquiring an image of a predetermined region; semantically segmenting the image to acquire a first probability that a region corresponding to each pixel in the image is a road region; acquiring a historical position information set of a target terminal; correcting, in response to historical position information existing in the historical position information set, the historical position information indicating a historical position located in the predetermined region, the first probability according to the historical position information to obtain a second probability; and determining a region corresponding to a pixel having the second probability greater than a preset threshold as a road region. Such an embodiment improves the road detection accuracy.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: May 12, 2020
    Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Yuan Xia, Yehui Yang, Haishan Wu, Jingbo Zhou, Chao Li
  • Publication number: 20200112392
    Abstract: The method includes: learning, by a terminal, a first CQI index according to a first CQI table, and sending the first CQI index to a base station; receiving, by the base station, the first CQI index sent by the terminal device, determining a first MCS index according to the first CQI table, a first MCS table, and the received first CQI index, and sending the determined first MCS index to the terminal device; and receiving, by the terminal, the first MCS index sent by the base station, and determining a modulation order and a code block size according to the first MCS table and the received first MCS index, where the first CQI table includes an entry in which a modulation scheme is higher than 64QAM, and the first MCS table includes an entry in which a modulation scheme is higher than 64QAM.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 9, 2020
    Inventors: Liang XIA, Yuan XIA
  • Patent number: 10608798
    Abstract: Method and device for notifying reference signal configuration information are disclosed. Channel state information-reference signal (CSI-RS) configuration information is coded, to obtain one or more CSI-RS configuration codes. The CSI-RS configuration codes are sent to a terminal device. The terminal device determines, based on CSI-RS configuration codes, CSI-RS configuration information such as a quantity of antenna ports for transmitting a CSI-RS, a CSI-RS pattern, a CSI-RS period and an offset corresponding to the CSI-RS period.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: March 31, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: David Mazzarese, Yuan Xia, Liang Xia
  • Patent number: 10572754
    Abstract: The present disclosure provides an area of interest boundary extracting method and apparatus, a device and a computer storage medium, wherein the area of interest boundary extracting method comprises: obtaining a satellite image and a road network base map including an area of interest; merging the obtained satellite image and road network base map to obtain merged data; using a binarizing model to perform binarization for the merged data to obtain a binarized image, wherein the binarizing model is obtained by training according to training data in advance; extracting a boundary of the binarized image as the boundary of the area of interest.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: February 25, 2020
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Yehui Yang, Yuan Xia, Haishan Wu, Chao Li
  • Publication number: 20200045770
    Abstract: The present disclosure relates to implementing policy control. In one example communication system, a core network exposes a service policy to an application server, and the application server authorizes user equipment with the service policy. Before accessing a service provided by the application server, the user equipment pushes, to the core network, the service policy that needs to be used to access the application server. A core network device performs policy control such as charging, QoS, routing, gating control, or redirection on a service flow or a data packet between the user equipment and the application server according to the service policy pushed by the user equipment.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Inventors: Xiang HU, Yuan XIA, Zhongping CHEN, Han ZHOU, Quan ZHU
  • Patent number: 10542438
    Abstract: Embodiments of the present invention disclose a method for detecting a signal on an unlicensed spectrum channel, user equipment, and a base station. The method includes: receiving, by user equipment, instruction information sent by a base station; and starting, by the user equipment according to the instruction information, to detect a signal on an unlicensed spectrum channel. According to the present invention, only when receiving the instruction information sent by the base station, the user equipment detects the signal on the unlicensed spectrum channel according to the instruction information. This reduces power consumption of the user equipment.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: January 21, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zuomin Wu, David Jean-Marie Mazzarese, Qiang Li, Sha Ma, Yuan Xia
  • Patent number: 10541779
    Abstract: A method is provided, including: learning, by a terminal, a first CQI index according to a first CQI table, and sending the first CQI index to a base station; receiving, by the base station, the first CQI index sent by the terminal device, determining a first MCS index according to the first CQI table, a first MCS table, and the received first CQI index, and sending the determined first MCS index to the terminal device; and receiving, by the terminal, the first MCS index sent by the base station, and determining a modulation order and a code block size according to the first MCS table and the received first MCS index, where the first CQI table includes an entry in which a modulation scheme is higher than 64QAM, and the first MCS table includes an entry in which a modulation scheme is higher than 64QAM.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: January 21, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Liang Xia, Yuan Xia
  • Publication number: 20190386894
    Abstract: A service management method and an apparatus thereof are disclosed. The method includes: obtaining, by user equipment, a communication address of a gateway user plane, and establishing a communication link to the gateway user plane by using the communication address; sending a session connection create request message to the gateway user plane by using the communication link; receiving, by using the communication link, a session connection create response message sent by the gateway user plane; and when the authentication result is that the authentication succeeds, performing service management based on service policy information that is sent by the gateway user plane by using the communication link. According to the embodiments of the present disclosure, a participation level of the user equipment can be increased, and a service management capability of the user equipment can be improved.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 19, 2019
    Inventors: Xiang HU, Yuan XIA, Quan ZHU
  • Publication number: 20190387397
    Abstract: This application relates to the field of communications technologies, and discloses a lawful interception method, apparatus, and system for performing lawful interception on local offloaded service data of user equipment. The method includes: receiving, by a centralized gateway device, an interception instruction sent by a lawful interception gateway device, where the interception instruction carries an identifier of to-be-intercepted user equipment; sending, by the centralized gateway device to a remote gateway device, an offloading disabling instruction, where the offloading disabling instruction instructs the remote gateway device to disable a local offloading function of the user equipment; and receiving, by the centralized gateway device, service data of the user equipment sent by the remote gateway device, and reporting the service data to a lawful interception center.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 19, 2019
    Inventors: Longyu CAO, Yuan XIA, Xiaodong SUN, Junping ZHOU
  • Patent number: 10496748
    Abstract: A method and apparatus for outputting information are provided. A specific embodiment of the method comprises: retrieving at least one medical entity keyword and at least one attribute keyword from a target medical text; then generating a set of keyword pairs, each of the keyword pairs including the retrieved medical entity keyword and the retrieved attribute keyword; then retrieving, for each of the keyword pairs in the set of keyword pairs, a text characteristic of the each of the keyword pairs in the target medical text, and introducing the retrieved text characteristic into a pre-trained association-relationship determination model to obtain an association result corresponding to the each of the keyword pairs; and finally outputting the keyword pairs having the association relationship in the set of keyword pairs. The embodiment improves the abundance of outputted information contents.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: December 3, 2019
    Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Jingbo Zhou, Yuan Xia, Hongliang Fei, Chaochun Liu, Weishan Dong, Wei Fan
  • Patent number: 10455563
    Abstract: Embodiments disclose a method, a device, and an apparatus for determining a downlink parameter. The method may include: receiving category information and modulation information that are reported by UE, where the category information includes a UE category of the UE, and the modulation information includes a highest order modulation scheme supported by the UE; and determining, as a downlink parameter of the UE, a downlink parameter that corresponds to the UE category of the UE and the highest order modulation scheme supported by the UE, where the downlink parameter of the UE is determined according to a correspondence from a UE category of the UE and a highest order modulation scheme supported by the UE to a downlink parameter of the UE as well as the UE category of the UE and the highest order modulation scheme supported by the UE.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: October 22, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Liang Xia, Yuan Xia, Brian Classon, Vipul Desai
  • Publication number: 20190289447
    Abstract: A method and an apparatus for communication between user equipment (UEs) is disclosed. The method comprises: receiving a data packet from a first UE, the data packet including data and an IP address of a second UE; obtaining a context record for the second UE, the context record including the IP address of the second UE and an identifier of a second user plane; sending the data packet to the second user plane according to the identifier of the second user plane in order to enable the second user plane to send the data packet to the second UE.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 19, 2019
    Inventors: Han Zhou, Yuan Xia, Qi Yao
  • Patent number: 10417274
    Abstract: A method and apparatus for pushing information. A specific embodiment of the searching method comprises: analysing, based on a second search operation sequentially performed to a map application installed on a client by a user, a search term corresponding to the second search operation; matching the analysed search term with a first search term in a first search term sequence to determine whether the matching is successful; acquiring log data of the map application installed on the client, in response to the matching being successful; determining a vehicle demand probability of the user based on the log data, acquired feature information of the user and a pre-trained vehicle demand probability model; and pushing information to the client in response to the determined vehicle demand probability being greater than a preset vehicle demand probability threshold.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: September 17, 2019
    Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Yuan Xia, Jingbo Zhou, Haishan Wu
  • Patent number: 10356809
    Abstract: Embodiments of the present invention relate to the field of communications technologies, and provide a method for transmission by using scheduling signaling, and an apparatus, which can avoid a problem of insufficient processes, increase a quantity of processes that can be supported by scheduling signaling, and increase HARQ processes or transport blocks in a HARQ process that can be used in single-subframe scheduling or multi-subframe scheduling, without increasing scheduling signaling overheads. The method specifically includes: receiving, by user equipment UE, scheduling signaling sent by a base station, where the scheduling signaling includes a HARQ process number field; acquiring a subframe number of a subframe scheduled by using the scheduling signaling; determining a transport block according to the HARQ process number field and the subframe number; and processing data in the transport block. The present invention is applied to scheduling signaling transmission.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: July 16, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Liang Xia, Yuan Xia, Bo Li
  • Publication number: 20190149296
    Abstract: Method and device for notifying reference signal configuration information are disclosed. Channel state information-reference signal (CSI-RS) configuration information is coded, to obtain one or more CSI-RS configuration codes. The CSI-RS configuration codes are sent to a terminal device. The terminal device determines, based on CSI-RS configuration codes, CSI-RS configuration information such as a quantity of antenna ports for transmitting a CSI-RS, a CSI-RS pattern, a CSI-RS period and an offset corresponding to the CSI-RS period.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
    Inventors: David Mazzarese, Yuan Xia, Liang Xia
  • Publication number: 20190114318
    Abstract: A method and apparatus for outputting information are provided. A specific embodiment of the method comprises: retrieving at least one medical entity keyword and at least one attribute keyword from a target medical text; then generating a set of keyword pairs, each of the keyword pairs including the retrieved medical entity keyword and the retrieved attribute keyword; then retrieving, for each of the keyword pairs in the set of keyword pairs, a text characteristic of the each of the keyword pairs in the target medical text, and introducing the retrieved text characteristic into a pre-trained association-relationship determination model to obtain an association result corresponding to the each of the keyword pairs; and finally outputting the keyword pairs having the association relationship in the set of keyword pairs. The embodiment improves the abundance of outputted information contents.
    Type: Application
    Filed: September 18, 2018
    Publication date: April 18, 2019
    Applicant: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Jingbo Zhou, Yuan Xia, Hongliang Fei, Chaochun Liu, Weishan Dong, Wei Fan
  • Publication number: 20190095432
    Abstract: The present disclosure provides a method and apparatus for building a text classification model, and a text classification method and apparatus. The method of building a text classification model comprises: obtaining a training sample; obtaining a vector matrix corresponding to the text, after performing word segmentation for the text based on an entity dictionary; using the vector matrix corresponding to the text and a class of the text to train a first classification model and a second classification model respectively; during the training process, using a loss function of the first classification model and a loss function of the second classification model to obtain a loss function of the text classification model, and using the loss function of the text classification model to adjust parameters for the first classification model and the second classification model, to obtain the text classification model formed by the first classification model and the second classification model.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 28, 2019
    Inventors: Yuan Xia, Jingbo Zhou, Weishan Dong, Wei Fan
  • Publication number: 20190090142
    Abstract: A reference signal sequence configuration method includes: selecting, by a network device and from candidate IDs, an ID used for generating a reference signal initialization sequence for a terminal, where the candidate IDs include at least two IDs, and the selected ID does not include a scrambling ID; and generating a reference signal initialization sequence for the terminal according to the selected ID. An implementation manner of the present invention further provides a network device. In the reference signal sequence configuration method and the network device, a reference signal initialization sequence is generated according to the selected ID, thereby providing a manner of generating a reference signal initialization sequence different from the manner in the prior art.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Kunpeng LIU, Liang Xia, Yuan Xia