Patents by Inventor Xiaoji Sun

Xiaoji Sun 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: 20230144855
    Abstract: The present disclosure provides methods for increasing the quantity and/or the ratios of erythroblasts, reticulocytes, and/or erythrocytes, or progenitors thereof, in which any of these cells express HbF (e.g. HbF+ and/or HbFhigh cells). The present disclosure further provides methods for treating diseases or disorders characterized by, for example, oxygen delivery deficiencies and/or reduced expression and/or activity of hemoglobin. Such diseases, without limitation, are mitigated by therapeutic reactivation of HbF.
    Type: Application
    Filed: September 1, 2022
    Publication date: May 11, 2023
    Inventors: Mauricio CORTES, Xiaoji SUN, Anthony Joseph MONTI, Nicholas McCartney PLUGIS
  • Publication number: 20220399129
    Abstract: Systems and methods for associating cellular constituents with a cellular process of interest are provided. Constituent vectors comprising abundances for a first plurality of cells representing annotated cell states are formed and used to obtain a latent representation of constituent modules having subsets of constituents. A constituent count data structure comprising abundances of the constituents for a second plurality of cells representing covariates of interest is obtained. An activation data structure is formed by combining the latent representation and the constituent count data structure, using constituents as a common dimension. A model is trained using a difference between the predicted and actual absence or presence of each covariate in each cellular constituent module represented in the activation data structure, thus adjusting covariate weights indicating a correlation between covariates and constituent modules across the activation data structure.
    Type: Application
    Filed: June 15, 2022
    Publication date: December 15, 2022
    Inventors: Fabian Alexander WOLF, Inna LIPCHINA, Xiaoji SUN, Nicholas McCartney PLUGIS
  • Patent number: 10952114
    Abstract: The present application discloses a method, device, and system for selecting a user plane functional entity supporting non-3GPP access ensure service continuity. When a user equipment (UE) performs access via a 3GPP network, subscription data of the UE are obtained by a CP functional entity. The subscription data include indication information that indicates whether the UE is allowed to connect to a non-3GPP network. If the indication information indicates that the UE is allowed to connect to the non-3GPP network, a target UP functional entity supporting the non-3GPP access is selected by the CP functional entity. The present application is applicable to the field of communications technologies.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: March 16, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Youyang Yu, Xiaoji Sun
  • Patent number: 10728949
    Abstract: Embodiments of the present invention provide an apparatus, a device, and a method. The method comprises: when it is detected that a position of user equipment changes, determining whether an area served by an anchor gateway through which the user equipment connects to a packet data network is consistent with an area served by a data forwarding gateway; sending, to the user equipment when a result of the determining is no, a packet data network connection release request that carries a reconnection indication; receiving a packet data network reconnection request sent by the user equipment; selecting an anchor gateway that serves an area consistent with the area served by the data forwarding gateway; connecting the user equipment to the packet data network by using the selected anchor gateway. Voice service experience of a user may be improved by using the method in the present invention.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: July 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Xiaoji Sun
  • Patent number: 10517121
    Abstract: Embodiments of the present invention provide a service processing method, a related apparatus, and a system. The method includes: UE adds a service type indication of a service initiated by the UE to an RRC connection request and sends the RRC connection request to a base station, and adds the service type indication of the service initiated by the UE to a non-access stratum NAS request and sends the NAS request to a mobility management network element. In this way, when a network side performs congestion control or overload control, the base station may determine, according to the service type indication, that the service initiated by the UE is a voice service, a video service, or a short message service, accept the RRC connection request. Similarly, the mobility management network element may accept, according to the service type indication, the NAS request.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: December 24, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lin Shu, Xiaoji Sun
  • Patent number: 10440616
    Abstract: Embodiments of the present invention provide a failure handling method, a packet data network, a mobility management entity, and a network system. The failure handling method includes: receiving, by a packet data network gateway P-GW, downlink data after detecting that a failure occurs in an associated first S-GW; and sending, by the P-GW, a notification message to a mobility management entity MME by using a second S-GW, where the notification message includes an identifier of the P-GW and an identifier of a user, so that when determining that the identifier of the P-GW included in the notification message is different from a P-GW identifier corresponding to a context identifier of the user, the MME refuses to initiate a procedure for recovering from the failure in the first S-GW. The embodiments of the present invention can prevent a failure recovery procedure from being executed multiple times, and lighten signaling load.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: October 8, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaoyan Shi, Xiaoji Sun
  • Patent number: 10405206
    Abstract: A service redundancy method and a related apparatus, where the method includes sending, by a mobility management entity (MME), a request message to a domain name system (DNS) server, receiving a request response message sent including MME codes (MMECs) of all MMEs in the MME pool, determining a backup MME of the MME according to the MMECs of all the MMEs in the MME pool, sending an interface request message to the DNS server, where the interface request message includes an MMEC of the backup MME and the pool identity of the MME pool, receiving an interface response message from the DNS server, where the interface response message includes interface information of the backup MME, and sending, according to the interface information of the backup MME, user information of user equipment UE attached to the MME to the backup MME.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: September 3, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yu Fan, Xiaoji Sun, Bo Chen
  • Publication number: 20190239133
    Abstract: The present application discloses a method, device, and system for selecting a user plane functional entity supporting non-3GPP access ensure service continuity. When a user equipment (UE) performs access via a 3GPP network, subscription data of the UE are obtained by a CP functional entity. The subscription data include indication information that indicates whether the UE is allowed to connect to a non-3GPP network. If the indication information indicates that the UE is allowed to connect to the non-3GPP network, a target UP functional entity supporting the non-3GPP access is selected by the CP functional entity. The present application is applicable to the field of communications technologies.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 1, 2019
    Inventors: Youyang YU, Xiaoji SUN
  • Publication number: 20180295666
    Abstract: Embodiments of the present invention provide an apparatus, a device, and a method. The method comprises: when it is detected that a position of user equipment changes, determining whether an area served by an anchor gateway through which the user equipment connects to a packet data network is consistent with an area served by a data forwarding gateway; sending, to the user equipment when a result of the determining is no, a packet data network connection release request that carries a reconnection indication; receiving a packet data network reconnection request sent by the user equipment; selecting an anchor gateway that serves an area consistent with the area served by the data forwarding gateway; connecting the user equipment to the packet data network by using the selected anchor gateway. Voice service experience of a user may be improved by using the method in the present invention.
    Type: Application
    Filed: June 13, 2018
    Publication date: October 11, 2018
    Inventor: Xiaoji Sun
  • Patent number: 10015834
    Abstract: Embodiments of the present invention provide an apparatus, a device, and a method. The method comprises: when it is detected that a position of user equipment changes, determining whether an area served by an anchor gateway through which the user equipment connects to a packet data network is consistent with an area served by a data forwarding gateway; sending, to the user equipment when a result of the determining is no, a packet data network connection release request that carries a reconnection indication; receiving a packet data network reconnection request sent by the user equipment; selecting an anchor gateway that serves an area consistent with the area served by the data forwarding gateway; connecting the user equipment to the packet data network by using the selected anchor gateway. Voice service experience of a user may be improved by using the method in the present invention.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: July 3, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Xiaoji Sun
  • Patent number: 9894582
    Abstract: The embodiments of the present invention provide a congestion control implementation method and apparatus, where the method includes: determining one or more user equipments for which single radio voice call continuity (SRVCC) offloading needs to be performed; sending an SRVCC offload message to an E-UTRAN NodeB serving the one or more user equipments, so that when triggering an SRVCC handover procedure, the E-UTRAN NodeB switches the one or more user equipments from a Long Term Evolution (LTE) domain to a circuit switched (CS) domain. When the SRVCC handover procedure is completed, the one or more user equipments can be switched from VoLTE user equipments to VoCS user equipments. In this way, LTE cell load can be alleviated and QoS of the one or more user equipments can be guaranteed.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: February 13, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xinyong Wang, Haopeng Zhu, Tao Jiang, Xiaobo Wu, Xiaoji Sun, Wei Tan
  • Publication number: 20180007720
    Abstract: Embodiments of the present invention provide a service processing method, a related apparatus, and a system. The method includes: UE adds a service type indication of a service initiated by the UE to an RRC connection request and sends the RRC connection request to a base station, and adds the service type indication of the service initiated by the UE to a non-access stratum NAS request and sends the NAS request to a mobility management network element. In this way, when a network side performs congestion control or overload control, the base station may determine, according to the service type indication, that the service initiated by the UE is a voice service, a video service, or a short message service, accept the RRC connection request. Similarly, the mobility management network element may accept, according to the service type indication, the NAS request.
    Type: Application
    Filed: September 12, 2017
    Publication date: January 4, 2018
    Inventors: Lin SHU, Xiaoji SUN
  • Publication number: 20170332257
    Abstract: A service redundancy method and a related apparatus, where the method includes sending, by a mobility management entity (MME), a request message to a domain name system (DNS) server, receiving a request response message sent including MME codes (MMECs) of all MMEs in the MME pool, determining a backup MME of the MME according to the MMECs of all the MMEs in the MME pool, sending an interface request message to the DNS server, where the interface request message includes an MMEC of the backup MME and the pool identity of the MME pool, receiving an interface response message from the DNS server, where the interface response message includes interface information of the backup MME, and sending, according to the interface information of the backup MME, user information of user equipment UE attached to the MME to the backup MME.
    Type: Application
    Filed: July 31, 2017
    Publication date: November 16, 2017
    Inventors: Yu Fan, Xiaoji Sun, Bo Chen
  • Publication number: 20160316402
    Abstract: Embodiments of the present invention provide a failure handling method, a packet data network, a mobility management entity, and a network system. The failure handling method includes: receiving, by a packet data network gateway P-GW, downlink data after detecting that a failure occurs in an associated first S-GW; and sending, by the P-GW, a notification message to a mobility management entity MME by using a second S-GW, where the notification message includes an identifier of the P-GW and an identifier of a user, so that when determining that the identifier of the P-GW included in the notification message is different from a P-GW identifier corresponding to a context identifier of the user, the MME refuses to initiate a procedure for recovering from the failure in the first S-GW. The embodiments of the present invention can prevent a failure recovery procedure from being executed multiple times, and lighten signaling load.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 27, 2016
    Inventors: Xiaoyan SHI, Xiaoji SUN
  • Publication number: 20160242087
    Abstract: The embodiments of the present invention provide a congestion control implementation method and apparatus, where the method includes: determining one or more user equipments for which single radio voice call continuity (SRVCC) offloading needs to be performed; sending an SRVCC offload message to an E-UTRAN NodeB serving the one or more user equipments, so that when triggering an SRVCC handover procedure, the E-UTRAN NodeB switches the one or more user equipments from a Long Term Evolution (LTE) domain to a circuit switched (CS) domain. When the SRVCC handover procedure is completed, the one or more user equipments can be switched from VoLTE user equipments to VoCS user equipments. In this way, LTE cell load can be alleviated and QoS of the one or more user equipments can be guaranteed.
    Type: Application
    Filed: September 2, 2015
    Publication date: August 18, 2016
    Inventors: Xinyong Wang, Haopeng Zhu, Tao Jiang, Xiaobo Wu, Xiaoji Sun, Wei Tan
  • Publication number: 20160242227
    Abstract: Embodiments of the present invention provide an apparatus, a device, and a method. The method comprises: when it is detected that a position of user equipment changes, determining whether an area served by an anchor gateway through which the user equipment connects to a packet data network is consistent with an area served by a data forwarding gateway; sending, to the user equipment when a result of the determining is no, a packet data network connection release request that carries a reconnection indication; receiving a packet data network reconnection request sent by the user equipment; selecting an anchor gateway that serves an area consistent with the area served by the data forwarding gateway; connecting the user equipment to the packet data network by using the selected anchor gateway. Voice service experience of a user may be improved by using the method in the present invention.
    Type: Application
    Filed: April 28, 2016
    Publication date: August 18, 2016
    Inventor: Xiaoji Sun
  • Publication number: 20150382267
    Abstract: The embodiments of the present invention provide a congestion control implementation method and apparatus, where the method includes: determining one or more user equipments for which single radio voice call continuity (SRVCC) offloading needs to be performed; sending an SRVCC offload message to an E-UTRAN NodeB serving the one or more user equipments, so that when triggering an SRVCC handover procedure, the E-UTRAN NodeB switches the one or more user equipments from a Long Term Evolution (LTE) domain to a circuit switched (CS) domain. When the SRVCC handover procedure is completed, the one or more user equipments can be switched from VoLTE user equipments to VoCS user equipments. In this way, LTE cell load can be alleviated and QoS of the one or more user equipments can be guaranteed.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 31, 2015
    Inventors: Xinyong Wang, Haopeng Zhu, Tao Jiang, Xiaobo Wu, Xiaoji Sun, Wei Tan
  • Publication number: 20150365851
    Abstract: Embodiments of the present invention provide a service control method, a mobility management entity, and a mobile switching center, and the method includes: determining one or more user equipments; in a scenario of unsolicited circuit switched fallback (CSFB) offloading, sending a notification message to the one or more user equipments, and when a registration request message or a combined registration request message is received, sending a registration accept message or a combined registration accept message to the one or more user equipments; or in a scenario of solicited circuit switched fallback (CSFB) offloading, when a registration request message or a combined registration request message sent by the one or more user equipments is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, so that a user equipment can communicate via a CS domain rather than suffering a voice call failure.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Inventors: Xinyong Wang, Haopeng Zhu, Tao Jiang, Xiaobo Wu, Xiaoji Sun, Wei Tan
  • Patent number: 8661137
    Abstract: An information processing method and system, and a mobility management network element are provided by the embodiments of the present invention. Wherein, the information processing method includes: receiving a message that includes data information of a user equipment UE; determining that the UE is a UE of low data usage; and sending the received data information of the UE to a machine type control server. By using the method, no bearer is activated, and the network side does not need to allocate bearer resources for data transmission of the UE. Therefore, the network load is reduced.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 25, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhongping Chen, Wenfu Wu, Xiaoji Sun
  • Publication number: 20120109800
    Abstract: A group charging method, a charging processing apparatus and a communication system are provided in the embodiments of the present invention, in which the group charging method includes: obtaining at least one of a group identifier and a field of a charging characteristic of a user equipment; generating a charging rule according to the obtained at least one of the group identifier and the field of the charging characteristic; and charging user equipments in a group according to the charging rules.
    Type: Application
    Filed: January 6, 2012
    Publication date: May 3, 2012
    Inventors: Han ZHOU, Wenfu WU, Zhongping CHEN, Xiaoji SUN