Patents by Inventor Huarui Liang

Huarui Liang 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).

  • METHOD FOR SUPPORTING INDICATION OF A FAILURE EVENT TO A SOURCE ACCESS SYSTEM
    Publication number: 20190191340
    Abstract: A method for supporting indication of a failure event to a source access system is provided. The method includes notifying, by the source access system, information of a source cell to a target access system, routing, by the target access system, a message to the base station or the base station controller of the source access through a core network by use of the information of the source cell received from the source access system when the target access system needs to transmit a message to the source access system. By use of the method provided by the present disclosure, a problem of mobility robustness optimization (MRO) among different radio access technology (RAT) may be notified to the source access system, so as to avoid impact for a terminal, reduce operator configuration.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Inventors: Lixiang XU, Hong WANG, Huarui LIANG
  • User plane for fifth generation cellular architecture
    Patent number: 10306579
    Abstract: Apparatuses, systems, and methods to perform attachment of a wireless device to a next generation gateway via either a base station of a next generation radio access network (RAN) or a mobility management entity of a legacy RAN. An apparatus may be configured to receive an attachment request from a wireless device, determine authentication information via communication with a home subscriber server, determine, based at least in part on the authentication information, whether the wireless device is capable of communicating via the next generation RAT, and send, in response to determining the wireless device is capable, a connection request to a gateway of the next generation RAN. The authentication information may include subscription information associated with the wireless device.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: May 28, 2019
    Assignee: Apple Inc.
    Inventors: Dawei Zhang, Haijing Hu, Huarui Liang
  • METHOD AND SYSTEM FOR SUPPORTING FAST RECOVERY OF USER EQUIPMENT
    Publication number: 20190159079
    Abstract: A method for supporting fast recovery of a User Equipment (UE) includes performing, by a serving base station, UE context synchronization for one or more other base stations in a related small cell cluster when a UE accesses the serving base station, performing, by a base station that the UE performs a radio resource control (RRC) connection re-establishment, the RRC connection re-establishment for the UE according to UE context saved in a synchronization process. The present also discloses another method and system for supporting UE fast recovery. By applying the technical solution disclosed by the present disclosure, when the UE moves in a small cell scenario, the UE can be recovered quickly in the case of a failure, so as to avoid the UE returns to an idle mode, avoid data loss, guarantee business continuity, and improve UE experience.
    Type: Application
    Filed: January 22, 2019
    Publication date: May 23, 2019
    Inventors: Lixiang XU, Hong Wang, Huarui Liang
  • Self-optimizing method for the UE group
    Patent number: 10292083
    Abstract: The present application discloses a self-optimizing method for a UE group, which includes: a. a base station of a cell in the system adjusts mobility parameters of a specified UE group from the cell to another cell, and notifies the base station that the another cell belongs to of a relative value of mobility parameter change of the specified UE group in the cell; or, the base station of the cell requests base station of the another cell to adjust the mobility parameters of the specified UE group to the cell, and carry the relative value of mobility parameter change; b. the base station of the another cell determines which manner to take to adjust the mobility parameters of the specified UE group according to the relative value of the mobility parameter change received.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: May 14, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Lixiang Xu, Hong Wang, Huarui Liang, Xiaowan Ke
  • Network slice selection
    Patent number: 10278123
    Abstract: This disclosure relates to techniques for network slice selection. A network slice selection function of a cellular network may receive a network slice selection request from a radio access network node of the cellular network. The network slice selection request may be received by the radio access network node from a wireless device. A core network slice (and possibly a radio access network slice) of the cellular network may be selected for the service request. A network slice selection response may be provided to the radio access network node, indicating a control plane entry point address for the selected core network slice. The selected radio network slice may also be indicated in the network slice selection response.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: April 30, 2019
    Assignee: Apple Inc.
    Inventors: Haining Wang, Huarui Liang, Haijing Hu, Dawei Zhang
  • Packet switched voice service registration techniques with reduced overhead
    Patent number: 10257239
    Abstract: This disclosure relates to techniques for reducing overhead associated with packet switched voice service registration. According to some embodiments, a cellular network entity associated with a cellular network may receive a request relating to packet switched voice service from a wireless device. It may be determined whether subscription information for the wireless device indicates that packet switched voice service from the cellular network is permitted to the wireless device. A response to the request indicating whether packet switched voice service from the cellular network is available to the wireless device may be provided to the wireless device. The response may be generated based at least in part on the subscription information.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: April 9, 2019
    Assignee: Apple Inc.
    Inventors: Huarui Liang, Zhiwei Wang, Dawei Zhang
  • Method enabling an RN to support multiple wireless access systems
    Patent number: 10243644
    Abstract: A method enabling an relay node (RN) to support multiple wireless access techniques is provided, which includes: a mobility management element (MME) requests a DeNB to establish evolved radio access bearers (ERAB) of EUTRAN and indicates access network information that will be transmitted by each of the ERABs; the DeNB requests an RN to establish radio bearers (RB) and indicates the access network information that will be transmitted by each of the RBs. The above method makes fewer modifications to conventional networks and techniques, guarantees service quality provided for a UE accessing an LTE system, and enables an RN to support access of UEs using multiple access techniques.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Lixiang Xu, Hong Wang, Huarui Liang
  • Method for determining access control
    Patent number: 10237790
    Abstract: Examples of the present disclosure provide a method for determining access control, applied in a handoff procedure of a UE. The method include receiving, from a source base station, a first message including a first local home network (LHN) identifier (ID) and an address of a local gateway; receiving, from a target base station, a second message including a second LHN ID; determining whether a LHN ID is changed based on the first LHN ID and a second LHN ID; and disconnecting a selected IP traffic offload (SIPTO) service if the LHN ID is changed. According to a technical solution provided by the present disclosure, service continuity of the LIPA service or the SIPTO service can be maintained correctly.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: March 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huarui Liang, Hong Wang, Lixiang Xu
  • Systems and methods for carrier aggregation deployment and organization in unlicensed bands
    Patent number: 10230505
    Abstract: Described herein are systems and methods for carrier aggregation deployment and organization in unlicensed bands. A method may comprise scanning, by a transceiver within a base station, channels in a band of interest, reporting, by the transceiver, signal measurement information to the base station, cell searching, by the transceiver, channels in the band of interest, determining channel information for neighboring each channel, and transmitting, by the transceiver, the channel information to the base station.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: March 12, 2019
    Assignee: APPLE INC.
    Inventors: Huarui Liang, Tarik Tabet, Dawei Zhang
  • Method for supporting indication of a failure event to a source access system
    Patent number: 10219185
    Abstract: A method for supporting indication of a failure event to a source access system is provided. The method includes notifying, by the source access system, information of a source cell to a target access system, routing, by the target access system, a message to the base station or the base station controller of the source access through a core network by use of the information of the source cell received from the source access system when the target access system needs to transmit a message to the source access system. By use of the method provided by the present disclosure, a problem of mobility robustness optimization (MRO) among different radio access technology (RAT) may be notified to the source access system, so as to avoid impact for a terminal, reduce operator configuration.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: February 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Lixiang Xu, Hong Wang, Huarui Liang
  • METHOD AND SYSTEM FOR SUPPORTING FAST RECOVERY OF USER EQUIPMENT
    Publication number: 20190028936
    Abstract: A method for supporting fast recovery of a User Equipment (UE) includes performing, by a serving base station, UE context synchronization for one or more other base stations in a related small cell cluster when a UE accesses the serving base station, performing, by a base station that the UE performs a radio resource control (RRC) connection re-establishment, the RRC connection re-establishment for the UE according to UE context saved in a synchronization process. The present also discloses another method and system for supporting UE fast recovery. By applying the technical solution disclosed by the present disclosure, when the UE moves in a small cell scenario, the UE can be recovered quickly in the case of a failure, so as to avoid the UE returns to an idle mode, avoid data loss, guarantee business continuity, and improve UE experience.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Inventors: Lixiang XU, Hong Wang, Huarui Liang
  • Method and system for supporting fast recovery of user equipment
    Patent number: 10136365
    Abstract: A method for supporting fast recovery of a User Equipment (UE) includes performing, by a serving base station, UE context synchronization for one or more other base stations in a related small cell cluster when a UE accesses the serving base station, performing, by a base station that the UE performs a radio resource control (RRC) connection re-establishment, the RRC connection re-establishment for the UE according to UE context saved in a synchronization process. The present also discloses another method and system for supporting UE fast recovery. By applying the technical solution disclosed by the present disclosure, when the UE moves in a small cell scenario, the UE can be recovered quickly in the case of a failure, so as to avoid the UE returns to an idle mode, avoid data loss, guarantee business continuity, and improve UE experience.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: November 20, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Lixiang Xu, Hong Wang, Huarui Liang
  • Method for synchronizing encryption information between SCell and UE
    Patent number: 10129742
    Abstract: The present application discloses a method for synchronizing encryption information between a SCell and UE, which includes that: the SCell transmits a COUNT value of RB established for the UE to a PCell; the PCell transmits the COUNT value received from the SCell to the UE; and the PCell receives a COUNT value of RB established on the SCell that is saved by the UE from the UE. Or, the SCell and the UE may directly exchange the COUNT value of RB. By the present application, the security and correctness of data can be ensured.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: November 13, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong Wang, Lixiang Xu, Huarui Liang
  • Uplink transmission on unlicensed radio frequency band component carriers
    Patent number: 10110355
    Abstract: Methods and apparatus for using an unlicensed radio frequency band component carrier for uplink transmission are disclosed. A wireless communication device receives a carrier aggregation configuration, which can include at least one licensed radio frequency band component carrier and at least one unlicensed radio frequency band component carrier. The wireless communication device establishes a set of radio bearers and associates an unlicensed radio frequency band permission level with each of the radio bearers. The wireless communication device multiplexes uplink traffic for the radio bearers on the at least one licensed radio frequency band component carrier and the at least one unlicensed radio frequency band component carrier based at least in part on the unlicensed radio frequency band permission levels associated with the radio bearers.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: October 23, 2018
    Assignee: Apple Inc.
    Inventors: Farouk Belghoul, Tarik Tabet, Dawei Zhang, Huarui Liang
  • METHOD FOR DETERMINING ACCESS CONTROL
    Publication number: 20180288661
    Abstract: Examples of the present disclosure provide a method for determining access control, applied in a handoff procedure of a UE. The method include receiving, from a source base station, a first message including a first local home network (LHN) identifier (ID) and an address of a local gateway; receiving, from a target base station, a second message including a second LHN ID; determining whether a LHN ID is changed based on the first LHN ID and a second LHN ID; and disconnecting a selected IP traffic offload (SIPTO) service if the LHN ID is changed. According to a technical solution provided by the present disclosure, service continuity of the LIPA service or the SIPTO service can be maintained correctly.
    Type: Application
    Filed: June 4, 2018
    Publication date: October 4, 2018
    Inventors: Huarui Liang, Hong Wang, Lixiang Xu
  • Apparatus, Systems and Methods for Enhancing Short Message Service Over Internet Protocol
    Publication number: 20180270626
    Abstract: Described herein are apparatuses, systems and methods for enhancing short message service (“SMS”) over Internet protocol (“IP”). The methods including at, a user equipment (“UE”) connected to a network, receiving an indication from the network, wherein the indication identifies whether the network supports an SMS over IP session, when the indication identifies that the network supports the SMS over IP session, registering the UE for voice communication and the SMS over IP session with the network, and when the indication identifies that the network does not support the SMS over IP session, registering the UE for voice communication without the SMS over IP session with the network.
    Type: Application
    Filed: August 28, 2015
    Publication date: September 20, 2018
    Applicant: Apple Inc.
    Inventors: Huarui LIANG, Zhiwei WANG, Dawei ZHANG
  • Device, System and Method for VoLTE Setup
    Publication number: 20180255594
    Abstract: A device, system, and method performs a Voice over Long Term Evolution (LTE) (VoLTE) call setup procedure. The device includes a transceiver establishing a connection with a LTE network and an Internet Protocol (IP) Multimedia Subsystem (IMS). The device includes a processor executing a VoLTE call application with a further user equipment, receiving an input to execute the VoLTE call application, and generating a data packet including an indication to trigger a dedicated bearer establishment procedure. The transceiver transmits the data packet to one of the LTE network and the IMS. The indication triggers the dedicated bearer establishment procedure to be performed during a Session Initiation Protocol (SIP) signal exchange procedure.
    Type: Application
    Filed: August 28, 2015
    Publication date: September 6, 2018
    Applicant: Apple Inc.
    Inventors: Huarui LIANG, Dawei ZHANG, Shangfeng LI, Hao SUN, Zhiwei WANG
  • METHOD FOR CONFIGURING AND TRANSMITTING KEY
    Publication number: 20180227753
    Abstract: The present application discloses a method for configuring and transmitting a key, which includes that: a) a serving cell (PCell) of UE determines a key (KeNB) used by a SCell and transmits the KeNB to the SCell; and b) the PCell transmits configuration information for configuring the SCell to the UE after receiving a response message from the SCell, and receives a response message from the UE. Or, the method includes that: a SCell of UE transmits a cell key request to a MME and receives key information from the MME; and the SCell transmits the key information received from the MME to the UE, and receives a response message from the UE. By the present application, data of the SCell is transmitted after being encrypted, so as to avoid a case that the data is decoded by other users, and further guarantee the security of the data.
    Type: Application
    Filed: March 16, 2018
    Publication date: August 9, 2018
    Inventors: Hong WANG, Huarui LIANG, Lixiang XU
  • RRC state transition techniques with reduced signaling overhead
    Patent number: 10009942
    Abstract: This disclosure relates to techniques for establishing radio resource control connections between wireless devices and cellular networks. According to some embodiments, a wireless device and a cellular base station may establish a radio resource control (RRC) connection. The wireless device may indicate to the cellular base station to store access stratum context information associated with the wireless device after the RRC connection is released. The wireless device may also store access stratum context information associated with the cellular base station. The stored access stratum context information may be used in conjunction with a subsequent RRC connection establishment procedure between the wireless device and the cellular base station.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: June 26, 2018
    Assignee: Apple Inc.
    Inventors: Haijing Hu, Huarui Liang, Dawei Zhang
  • Network Slice Selection
    Publication number: 20180176858
    Abstract: This disclosure relates to techniques for network slice selection. A network slice selection function of a cellular network may receive a network slice selection request from a radio access network node of the cellular network. The network slice selection request may be received by the radio access network node from a wireless device. A core network slice (and possibly a radio access network slice) of the cellular network may be selected for the service request. A network slice selection response may be provided to the radio access network node, indicating a control plane entry point address for the selected core network slice. The selected radio network slice may also be indicated in the network slice selection response.
    Type: Application
    Filed: July 4, 2016
    Publication date: June 21, 2018
    Inventors: Haining Wang, Huarui Liang, Haijing Hu, Dawei Zhang