Patents by Inventor Yu-Syuan Jheng

Yu-Syuan Jheng 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).

  • Patent number: 10623149
    Abstract: Blockage detection in a wireless transmit receive unit includes performing a radio link measurement on one or more reference signals. The radio link measurement is compared to a comparing threshold and a blockage condition is indicated in response to the comparing of the radio link measurement meeting a threshold criterion on the comparing threshold.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: April 14, 2020
    Assignee: MEDIATEK INC.
    Inventors: Yu-Syuan Jheng, Yuanyuan Zhang, Yuan-Wen Ting, Pei-Shan Kao
  • Publication number: 20200112874
    Abstract: Aspects of the disclosure provide a method for reflective quality of service (QoS) control and management at a user equipment (UE). The method can include creating a derived QoS rule belonging to a session and having a QoS flow identifier (QFI). The derived QoS rule includes a precedence value that is set to one of a precedence value associated with a session identifier (ID) of the session received from a core network (CN) of a wireless communication system during a session establishment procedure for establishing the session, a precedence value associated with the QFI received from the CN during the session establishment procedure for establishing the session or when a downlink QoS flow having the QFI is added to the session, or a precedence value that is defined by an operator of the wireless communication system.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 9, 2020
    Applicant: MEDIATEK INC.
    Inventors: Yu-Syuan Jheng, Pavan Nuggehalli, Guillaume Sebire, Chien-Chun Huang-Fu, Per Johan Mikael Johansson
  • Patent number: 10609095
    Abstract: A method to manage call continuity in a network environment including a circuit-switched network and an IP multimedia subsystem (IMS) network is provided. A UE monitors one or more ongoing sessions in an IMS network, and the ongoing sessions contain at least one conference call. The UE detects a network-switching event for the UE to switch from the IMS network to a circuit-switched CS network. The UE then determines the one or more ongoing sessions within the IMS network to be released or transferred to the CS network. Finally, the UE performs a session transfer procedure for transferring the determined sessions.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: March 31, 2020
    Assignee: HFI Innovation INC.
    Inventors: Yu-Syuan Jheng, Chien-Chun Huang-Fu, Nuan-Yu Yang
  • Patent number: 10555227
    Abstract: Millimeter-wave (mmWave) band communication is a very promising technology for 5G small cells. In practice, such a new system will coexist with legacy or evolved microwave band systems, such as E-UTRAN LTE macro-cell cellular systems, for a long time to come. Considering the typical scenarios where a macro cell offers umbrella coverage for clusters of small cells, several user plane (U-plane) architectural choices of macro-assisted 5G mmWave systems from both UE and network's perspectives are evaluated. The proposed On-demand Reconfiguration U-Plane Architecture (ORUA) for Macro-assisted Millimeter Wave (mmWave) small cells is designed to meet 5G expectations of dense deployment of small cells and UEs and beamformed intermittent Gbps links.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: February 4, 2020
    Assignee: MEDIATEK INC.
    Inventors: Aimin Justin Sang, Yu-Syuan Jheng, Yuanyuan Zhang
  • Patent number: 10555355
    Abstract: Millimeter-wave (mmWave) band communication is a very promising technology for 5G small cells. In practice, such a new system will coexist with legacy or evolved microwave band systems, such as E-UTRAN LTE macro-cell cellular systems, for a long time to come. Considering the typical scenarios where a macro cell offers umbrella coverage for clusters of small cells, several control plane (C-plane) architectural choices of macro-assisted 5G mmWave systems from both UE and network's perspectives are evaluated. Termed macro-assisted mmWave, an effective end-to-end integration of the futuristic mmWave small cells and microwave macro cells shall promise the benefits of both yet avoid individual limitations. The proposed On-demand Reconfiguration C-Place Architecture (ORCA) for Macro-assisted Millimeter Wave (mmWave) small cells is designed to meet 5G expectations of dense deployment of small cells and UEs and beamformed intermittent Gbps links.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: February 4, 2020
    Assignee: MEDIATEK INC.
    Inventors: Aimin Justin Sang, Yuanyuan Zhang, Yu-Syuan Jheng
  • Patent number: 10542454
    Abstract: Aspects of the disclosure provide a method for reflective quality of service (QoS) control and management at a user equipment (UE). The method can include creating a derived QoS rule belonging to a session and having a QoS flow identifier (QFI). The derived QoS rule includes a precedence value that is set to one of a precedence value associated with a session identifier (ID) of the session received from a core network (CN) of a wireless communication system during a session establishment procedure for establishing the session, a precedence value associated with the QFI received from the CN during the session establishment procedure for establishing the session or when a downlink QoS flow having the QFI is added to the session, or a precedence value that is defined by an operator of the wireless communication system.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: January 21, 2020
    Assignee: MEDIATEK INC.
    Inventors: Yu-Syuan Jheng, Pavan Nuggehalli, Guillaume Sebire, Chien-Chun Huang-Fu, Per Johan Mikael Johansson
  • Patent number: 10536878
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives a radio bearer configuration. The UE also configures, based on the received radio bearer configuration, a radio bearer including a first logical channel on a first carrier and a second logical channel on a second carrier. The UE further determines whether to activate the radio bearer to perform duplication. In response to a determination to activate the radio bearer to perform duplication, the UE communicates a first packet on the first logical channel and communicates a duplicated first packet on the second logical channel.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: January 14, 2020
    Assignee: MEDIATEK INC.
    Inventors: Yu-Syuan Jheng, Pavan Santhana Krishna Nuggehalli, Pradeep Jose, Chia-Chun Hsu
  • Publication number: 20190349805
    Abstract: A UE including a wireless transceiver and a controller is provided. The controller constructs an end-marker control PDU for a QoS flow in response to a QoS flow to DRB mapping rule being configured for the QoS flow or in response to receiving a DL SDAP data PDU including an RDI set to 1 for the QoS flow, maps the end-marker control PDU to a default DRB in response to there being no stored QoS flow to DRB mapping rule for the QoS flow, maps the end-marker control PDU to a DRB according to a stored QoS flow to DRB mapping rule in response to the stored QoS flow to DRB mapping rule being different from the configured QoS flow to DRB mapping rule for the QoS flow, and sends the end-marker control PDU to the cellular station via the wireless transceiver.
    Type: Application
    Filed: May 9, 2019
    Publication date: November 14, 2019
    Inventors: Ming-Yuan CHENG, Yu-Syuan JHENG, Pavan Santhana Krishna NUGGEHALLI
  • Patent number: 10477438
    Abstract: A network-based solution of supporting IP multimedia subsystem (IMS) call setup in a next generation system (5GS) is proposed. During an attach or registration area update procedure, a serving base station sends an indication to a UE indicating whether IMS voice over PS session is supported or not. Upon receipt of the indication that IMS VoPS is supported, the UE triggers an IMS registration procedure. However, when an MO/MT call happens, the network determines that the UE may be in conditions where voice service is not supported because the network is not able to provide a successful IMS VoPS over the current serving cell connected to 5G core network. The network then triggers a RAT change or a EPS fallback procedure such that the UE is handover to a target cell that supports IMS VoPS.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 12, 2019
    Assignee: MEDIATEK INC.
    Inventors: Chien-Chun Huang-Fu, Guillaume Sebire, Yu-Syuan Jheng
  • Patent number: 10390384
    Abstract: A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a first network supporting only Packet-Switched (PS) services or a second network supporting Circuit-Switched (CS) services. The controller receives a rejection message of a Tracking Area Updating (TAU) procedure from the first network via the wireless transceiver when a Circuit Switch Fallback (CSFB)-related call originated from or terminated to the mobile communication device is pending, determines whether the rejection message includes a predetermined rejection cause, and in response to the rejection message including the predetermined rejection cause, selects the second network to make the CSFB-related call via the wireless transceiver without re-attaching to the first network.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: August 20, 2019
    Assignee: MediaTek Inc.
    Inventors: Yu-Cheng Huang, Chien-Chun Huang-Fu, Yu-Syuan Jheng, Jou-Man Lin
  • Publication number: 20190159059
    Abstract: Various examples pertaining to reflective quality of service (QoS) control in wireless communications are described. A user equipment (UE) receives from a wireless network control signaling that activates support of reflective QoS by the UE. The UE determines whether a predefined condition exists. The UE then indicates to the wireless network a change in a capability of the UE to support the reflective QoS responsive to the determining indicating that the predefined condition exists. When the UE receives from the wireless network control signaling that activates support of reflective QoS by the UE, the UE deletes one or more UE-derived QoS rules among a plurality of active UE-derived QoS rules each with a respective reflective QoS (RQ) timer running.
    Type: Application
    Filed: November 21, 2018
    Publication date: May 23, 2019
    Inventors: Yu-Syuan Jheng, Guillaume Sebire, Chien-Chun Huang-Fu, Mingcong Sun
  • Publication number: 20190132771
    Abstract: A user equipment (UE) compares a total amount of data available for transmission, including a total amount of packet data convergence protocol (PDCP) data volume and radio link control (RLC) data volume pending for initial transmission in two associated RLC entities comprising a primary RLC entity and a secondary RLC entity, to a threshold. In response to the total amount of data available for transmission being less than the threshold, the UE indicates an amount of the PDCP data volume to a first medium access control (MAC) entity associated with the primary RLC entity as well as indicating zero to a second MAC entity associated with the secondary RLC entity. In response to the total amount of data available for transmission being greater than or equal to the threshold, the UE indicates the amount of the PDCP data to both the first MAC entity and the second MAC entity.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 2, 2019
    Inventors: Yu-Syuan Jheng, Pavan Santhana Krishna Nuggehalli, Chun-Fan Tsai, Chia-Chun Hsu
  • Patent number: 10257070
    Abstract: Apparatus and methods are provided to handle the intermittent disconnections in an mmW system. In one novel aspect, the beam tracking failure is determined upon detection of one or more tracking failure conditions. In one embodiment, the UE further considers potential recoveries to avoid frequent triggering of the beam-tracking failure condition. In another novel aspect, the UE performs one or more recovery procedures based on one or more recovery conditions. In one embodiment, the UE performs the initial alignment procedure to recover the connection. In another embodiment, the UE performs the beam-switching request procedure before triggers the initial alignment procedure. In one embodiment, timers are used to supervise the recovery procedures. In another embodiment, macro-assisted procedures are used for the beam-switching request procedure. In yet another novel aspect, the UE performs reestablishment of a new connection at the upper layer upon receiving the beam-tracking failure indicator.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: April 9, 2019
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Yuanyuan Zhang, Chia-Hao Yu, Yu-Syuan Jheng, Aimin Justin Sang
  • Publication number: 20190090165
    Abstract: A network-based solution of supporting IP multimedia subsystem (IMS) call setup in a next generation system (5GS) is proposed. During an attach or registration area update procedure, a serving base station sends an indication to a UE indicating whether IMS voice over PS session is supported or not. Upon receipt of the indication that IMS VoPS is supported, the UE triggers an IMS registration procedure. However, when an MO/MT call happens, the network determines that the UE may be in conditions where voice service is not supported because the network is not able to provide a successful IMS VoPS over the current serving cell connected to 5G core network. The network then triggers a RAT change or a EPS fallback procedure such that the UE is handover to a target cell that supports IMS VoPS.
    Type: Application
    Filed: November 15, 2018
    Publication date: March 21, 2019
    Inventors: Chien-Chun Huang-Fu, Guillaume Sebire, Yu-Syuan Jheng
  • Publication number: 20190068513
    Abstract: A method of control Maximum Transmission Unit (MTU) reporting and discovery using AT commands is proposed. In communications networks, the MTU of a communication protocol of a layer is the size (in bytes or octets) of the largest protocol data unit that the layer can pass onwards. In an IP network, IP packets may be fragmented if the supported MTU size is smaller than the packet length. In accordance with one novel aspect, the packet data protocol (PDP) context of a packet data network (PDN) connection comprises MTU information. By introducing MTU information to the PDP contexts, TE can use AT commands to query MTU parameters from the network and thereby avoid fragmentation. TE can also use AT command to set MTU parameters and thereby control MTU discovery.
    Type: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Inventors: Chien-Chun Huang-Fu, Weirong Chu, Yu-Syuan Jheng
  • Publication number: 20190068514
    Abstract: A method of control Maximum Transmission Unit (MTU) reporting and discovery using AT commands is proposed. In communications networks, the MTU of a communication protocol of a layer is the size (in bytes or octets) of the largest protocol data unit that the layer can pass onwards. In an IP network, IP packets may be fragmented if the supported MTU size is smaller than the packet length. In accordance with one novel aspect, the packet data protocol (PDP) context of a packet data network (PDN) connection comprises MTU information. By introducing MTU information to the PDP contexts, TE can use AT commands to query MTU parameters from the network and thereby avoid fragmentation. TE can also use AT command to set MTU parameters and thereby control MTU discovery.
    Type: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Inventors: Chien-Chun Huang-Fu, Weirong Chu, Yu-Syuan Jheng
  • Publication number: 20190059026
    Abstract: Various examples and schemes pertaining to enhancement of voice domain selection in 5th-Generation Systems (5GS) and fast return from Evolved Packet System (EPS) to 5GS are described. A processor of a user equipment (UE) receive an indication of whether a packet-switched (PS) voice service is supported in a first mobile communication system. The processor performs, based on the indication, voice domain selection (VDS) by selecting and engaging with one of a plurality of mobile communication systems comprising the first mobile communication system and at least a second mobile communication system. The processor performs the VDS before receiving signaling from one of the plurality of communication systems about availability of support for the PS voice service in that mobile communication system.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 21, 2019
    Inventors: Chien-Chun Huang-Fu, Yu-Syuan Jheng, Yuan-Chieh Lin
  • Patent number: 10212691
    Abstract: Methods and apparatus are provided for paging transmission and reception for UEs requiring coverage extension/coverage enhancement. In one novel aspect, the UE reports the CE status to the MME. CE level related information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for CE UEs. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its CE status upon detecting CE status changes. The eNB stores UE CE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its CE UE list with repetition while paging other UEs normally.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: February 19, 2019
    Assignee: HFI Innovation INC.
    Inventors: Yuanyuan Zhang, Yu-Syuan Jheng, Feifei Sun, Li Chen, I-Kang Fu
  • Patent number: 10182379
    Abstract: Methods for LTE-WLAN interworking control and management are proposed. In one novel aspect, a terminal equipment (TE) can use an AT command to query the WLAN offloadability of a packet data network (PDN) connection. A mobile termination (MT) can store the WLAN offloadability indication in its memory and return the value to TE upon receiving the AT command. In one example, a new field <WLAN_Offload> can be added to an existing AT command.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: January 15, 2019
    Assignee: HFI Innovation INC.
    Inventors: Yu-Syuan Jheng, Pavan Santhana Krishna Nuggehalli, Chien-Chun Huang-Fu
  • Patent number: 10178585
    Abstract: A network-based solution of supporting IP multimedia subsystem (IMS) call setup in a next generation system (5GS) is proposed. During an attach or registration area update procedure, a serving base station sends an indication to a UE indicating whether IMS voice over PS session is supported or not. Upon receipt of the indication that IMS VoPS is supported, the UE triggers an IMS registration procedure. However, when an MO/MT call happens, the network determines that the UE may be in conditions where voice service is not supported because the network is not able to provide a successful IMS VoPS over the current serving cell connected to 5G core network. The network then triggers a RAT change or a EPS fallback procedure such that the UE is handover to a target cell that supports IMS VoPS.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 8, 2019
    Assignee: MEDIATEK INC.
    Inventors: Chien-Chun Huang-Fu, Guillaume Sebire, Yu-Syuan Jheng