Patents by Inventor Ching-Yu Liao

Ching-Yu Liao 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: 20150304982
    Abstract: A method of handling a location reporting procedure comprises performing, by a first proximity service (ProSe) function entity, a registration procedure for a proximity service with a first communication device; and performing, by the first ProSe function entity, the location reporting procedure for the proximity service between the first communication device and a second communication device; and transmitting, by the first ProSe function entity, a cancel location reporting message to a Secure User Plane Location (SUPL) Location Platform (SLP) server to cancel the location reporting procedure for the first communication device registered to the first ProSe function entity, when a timer of the proximity request message expires.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 22, 2015
    Inventor: Ching-Yu Liao
  • Patent number: 9167470
    Abstract: A method of handling signaling congestion for a machine type communication (MTC) device and/or a MTC server in a wireless communication system is disclosed. The method comprises receiving system information from a network; and stopping a triggering operation in a communication window according to the system information, wherein the system information indicates occurrence of a signaling congestion situation in the network.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: October 20, 2015
    Assignee: HTC Corporation
    Inventor: Ching-Yu Liao
  • Publication number: 20150296354
    Abstract: A method of transferring a short message service (SMS) to a communication device having activated an idle-mode signaling reduction (ISR) mode in a wireless communication system including a short message service gateway mobile switching center (SMS-GMSC) and a home location register (HLR)/home subscriber server (HSS) includes the SMS-GMSC querying a routing information from the HLR/HSS; and the SMS-GMSC sending a message indicating support of evolved packet system (EPS) and general packet radio service (GPRS).
    Type: Application
    Filed: June 25, 2015
    Publication date: October 15, 2015
    Inventors: Ching-Yu Liao, Kundan Tiwari
  • Publication number: 20150282120
    Abstract: The present disclosure proposes a UE, a base station, and a MTC-IWF for implementing MTC group trigger messages through a Cell Broadcasting Service (CBS). The method includes a MTC (Machine Type Communication) server transmitting to a MTC Inter-working Function (MTC-IWF) a trigger payload. The trigger payload would be delivered by the MTC-IWF to a group of MTC devices through Cell Broadcasting Center (CBC) and network nodes. The trigger payload may include a group trigger message indicator which distinguishes the group trigger message from a normal warning message. In response to receiving the content of the trigger payload, the network would page a group of MTC devices. From the group trigger message indicator embedded in the paging message, each MTC device would be able to receive a group trigger message through new system information block of the broadcast information.
    Type: Application
    Filed: June 14, 2015
    Publication date: October 1, 2015
    Inventor: Ching-Yu Liao
  • Publication number: 20150264642
    Abstract: A method of handling an access network discovery and selection function (ANDSF) comprises determining a plurality of closed subscriber group (CSG) cells of a wireless communication system with a CSG identity, for a mobile device of the wireless communication system to access a first service indicated by a first access point name (APN) of the wireless communication system via the plurality of CSG cells with the CSG identity, after a network determines the 3rd Generation Partnership Project (3GPP) as an access technology for the mobile device; and configuring an inter-system mobility policy (ISMP) node such that a value of an AccessTechnology leaf of a PrioritizedAccess node is configured as the 3GPP, a value of an Accessld leaf of the PrioritizedAccess node is configured as the CSG identity of the plurality of CSG cells, and a PrioritizedAPN node is configured under the ISMP node for configuring the first APN.
    Type: Application
    Filed: June 1, 2015
    Publication date: September 17, 2015
    Inventor: Ching-Yu Liao
  • Publication number: 20150264643
    Abstract: A method of handling an access network discovery and selection function (ANDSF) for a network of a wireless communication system comprises determining an IP flow of a mobile device of the wireless communication system, which is with a packet data network (PDN) connection associated to an access point name (APN) of the wireless communication system, for the mobile device to route the IP flow; and configuring an inter-system routing policy (ISRP) policy for a policy node such that a value of an AccessTechnology leaf of a RoutingRule node is configured as the 3rd Generation Partnership Project (3GPP), a value of an AccessId leaf is configured as a CSG identity of a plurality of CSG cells, and a PrioritizedAPN node is configured under the policy node for configuring the APN.
    Type: Application
    Filed: June 1, 2015
    Publication date: September 17, 2015
    Inventor: Ching-Yu Liao
  • Patent number: 9113355
    Abstract: A method of handling signaling and data transmission for machine-type communication (MTC) for a network node in a mobile communication environment is disclosed. The method comprises receiving a non-access stratum (NAS) request message from a mobile communication device when the network control node is congested; and sending a trigger delivery failure report to a network gateway node in the core network to reject a trigger request message received from the network gateway node for triggering the mobile communication device.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: August 18, 2015
    Assignee: HTC Corporation
    Inventor: Ching-Yu Liao
  • Patent number: 9094779
    Abstract: The present disclosure proposes a method and apparatuses of implementing MTC group trigger messages through a Cell Broadcasting Service (CBS). The method includes a MTC (Machine Type Communication) server transmitting to a MTC Inter-working Function (MTC-IWF) a trigger payload. The trigger payload would be delivered by the MTC-IWF to a group of MTC devices through Cell Broadcasting Center (CBC) and network nodes. The trigger payload may include a group trigger message indicator which distinguishes the group trigger message from a normal warning message. In response to receiving the content of the trigger payload, the network would page a group of MTC devices. From the group trigger message indicator embedded in the paging message, each MTC device would be able to receive a group trigger message through new system information block of the broadcast information.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: July 28, 2015
    Assignee: HTC Corporation
    Inventor: Ching-Yu Liao
  • Patent number: 9078197
    Abstract: A method of handling an access network discovery and selection function (ANDSF) for a network of a wireless communication system is disclosed. The method comprises determining a first plurality of closed subscriber group (CSG) cells of the wireless communication system with a first CSG identity, for a mobile device of the wireless communication system to communicate with an evolved packet core (EPC) network of the wireless communication system via the first plurality of CSG cells, after the network determines the 3rd Generation Partnership Project (3GPP) as an access technology for the mobile device; and configuring an inter-system mobility policy (ISMP) node such that a value of an AccessTechnology leaf of a PrioritizedAccess node is configured as the 3GPP, and a value of a first AccessId leaf of the PrioritizedAccess node is configured as the first CSG identity of the first plurality of CSG cells.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: July 7, 2015
    Assignee: HTC Corporation
    Inventor: Ching-Yu Liao
  • Patent number: 9037141
    Abstract: A method of handling queries caused overload in a core network of a wireless communication is disclosed. The core network comprises a data base and a network control node which stores a mobility management (MM) context of a mobile device. The method comprises the network node sending information in a notification message to the data base, wherein the information comprises at least one of International Mobile Subscriber Identity (IMSI), UE Reachability Request Parameter for the MME/SGSN (URRP-MME/URRP-SGSN), and a session management (SM) and/or mobility management (MM) back-off timer or a back-off indicator.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: May 19, 2015
    Assignee: HTC Corporation
    Inventor: Ching-Yu Liao
  • Publication number: 20150029866
    Abstract: A method of relay discovery and communication for a user equipment (UE) in a wireless communications system, including: receiving a first relay discovery request, from a remote UE which announces relay discovery requests; transmitting a relay discovery response including an identification of the UE, to the remote UE; receiving a second relay discovery request including the identification of the UE, from the remote UE; and activating a relay function to start relaying traffic of Proximity-based Service (Prose) communication for the remote UE.
    Type: Application
    Filed: July 29, 2014
    Publication date: January 29, 2015
    Inventors: Ching-Yu LIAO, Feng-Seng CHU
  • Patent number: 8918090
    Abstract: A timer configuration method for a core network in a wireless communication system is disclosed. The timer configuration method comprises receiving a mobility management request from a mobile device; and setting a mobile reachable timer to a value no less than a back-off timer value when the core network rejects the mobility management request with the back-off timer value.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: December 23, 2014
    Assignee: HTC Corporation
    Inventor: Ching-Yu Liao
  • Publication number: 20140348081
    Abstract: A method for handling Proximity-based Service (ProSe) discovery, comprising: performing a ProSe communication preparation procedure, in response to a received ProSe discovery request message, with a first UE and a second UE, for guiding ProSe discovery between the first UE and the second UE, wherein the received ProSe discovery request message indicates ProSe identifiers of the first UE and the second UE for ProSe communication and the ProSe communication preparation procedure comprises transmitting a first request message including scheduled information for the first UE and a second request message including scheduled information for the second UE, to the first UE and to the second UE respectively, and receiving response messages from the first and second UE; determining if a direct radio link between the first UE and the second UE is feasible for ProSe communication based on the received response messages from the first and second UE.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Applicant: HTC Corporation
    Inventor: Ching-Yu LIAO
  • Publication number: 20140342735
    Abstract: A Proximity-based Service (ProSe) registration method for a user equipment (UE) of a wireless communication system, used in a Mobility Management Entity (MME) of the wireless communication system is disclosed. The method includes: receiving an attach request or a tracking area update request for requesting ProSe UE registration from the UE; retrieving ProSe subscription information and ProSe preference settings related to the UE from a home subscriber server (HSS) of the wireless communication system and storing the ProSe subscription information and the ProSe preference settings related to the UE as a ProSe context of the UE; and transmitting a ProSe registration request including a ProSe identifier of the UE and the ProSe preference settings related to the UE to a ProSe server of the wireless communication system.
    Type: Application
    Filed: May 14, 2014
    Publication date: November 20, 2014
    Applicant: HTC Corporation
    Inventor: Ching-Yu Liao
  • Patent number: 8842538
    Abstract: A method of initiating a service with an access point name (APN) of a wireless communication system for a mobile device in the wireless communication system is disclosed. The mobile device has a plurality of connections with the APN. The method comprises disconnecting at least one first connection of the plurality of connections from the APN, wherein the mobile device keeps at least one second connection of the plurality of connections connected; and initiating the service with the APN, after disconnecting the at least one first connection from the APN; wherein the APN is congested or overloaded.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: September 23, 2014
    Assignee: HTC Corporation
    Inventor: Ching-Yu Liao
  • Publication number: 20140273943
    Abstract: A charging method for Proximity-based Service (ProSe) used in a first user equipment (UE) of a wireless communication system is disclosed. The charging method includes: establishing a ProSe service with a second UE; generating charging information for the ProSe service according to collected transmission information, wherein the ProSe service is between the first UE and a second UE in proximity and comprises ProSe discovery, ProSe communication or both, and wherein the transmission information comprises at least one of: radio resources dedicated for the ProSe service, allocated to the first UE by the a base station of the wireless communication system; at least one traffic volume report corresponding to uplink or downlink data volume, transmitted to the base station; and a time-elapsed duration for the ProSe service; and transmitting the charging information for the ProSe service to the base station or a core network entity of the wireless communication system.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: HTC Corporation
    Inventors: Chih-Hsiang WU, Ching-Yu LIAO
  • Patent number: 8818367
    Abstract: A mobile communication device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a first service network and a second service network. The controller module transmits a first request message for a Mobility Management (MM) procedure to the first service network, and receives a first rejection message with an MM back-off timer corresponding to the first request message from the first service network via the wireless module. Also, the controller module starts the MM back-off timer for the first service network in response to the first rejection message, and transmits a second request message for the MM procedure to the second service network via the wireless module.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: August 26, 2014
    Assignee: HTC Corporation
    Inventor: Ching-Yu Liao
  • Publication number: 20140192739
    Abstract: A method of handling proximity service (ProSe) in a wireless communication system is disclosed. The method includes transmitting, by a mobile device of the wireless communication system, a request message to one of the plurality Mobility Management Entities (MMEs) of the wireless communication system, for requesting a proximity service (ProSe) service; and indicating, by the one of the plurality of MMEs, to the mobile device a ProSe capability of a system network of the wireless communication system in an accept message.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 10, 2014
    Applicant: HTC Corporation
    Inventor: Ching-Yu Liao
  • Publication number: 20140187165
    Abstract: A method of handling device to device communication for a first user equipment (UE) in a wireless communication system includes establishing a Radio Resource Control (RRC) connection to a network of the wireless communication system; and receiving a first RRC message indicating to the first UE to use a first data radio bearer (DRB) for a proximity-based services (ProSe) communication with a second UE of the wireless communication system, wherein the first DRB is different from a second DRB for communication between the first UE and the network.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicant: HTC Corporation
    Inventors: Chih-Hsiang Wu, Ching-Yu Liao
  • Publication number: 20140171134
    Abstract: A method of handling a short message re-delivery for a network entity of a wireless communication system includes receiving a request corresponding to a transmission failure of a short message transmitted to a communication device without a Mobile Subscriber Integrated Services Digital Network Number (MSISDN) ; generating a first correlation identification (ID) according to the request; and storing the first correlation ID with a short message service center (SMSC) address corresponding to the short message.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 19, 2014
    Applicant: HTC Corporation
    Inventors: Fan-Min Tseng, Ching-Yu Liao