Patents by Inventor Sai Yiu Duncan Ho

Sai Yiu Duncan Ho 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: 9130702
    Abstract: Systems and methodologies are described that facilitate providing flow control feedback for controlling downlink data transmission rates. Various schemes can be utilized to send the flow control feedback from an access terminal to a base station. For example, a control PDU (e.g., MAC control PDU, PDCP control PDU) can be generated based upon a level of resource utilization of the access terminal, and sent to the base station for controlling the downlink data transmission rate. Following this example, a type of control PDU, a value included within the control PDU, etc. can be selected as a function of the level of resource utilization. By way of another illustration, a CQI report that includes a value selected as a function of the level of resource utilization associated with the access terminal can be generated and transmitted to the base station for controlling the downlink data transmission rate.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: September 8, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Arnaud Meylan, Etienne Francois Chaponniere, Francesco Grilli, Shailesh Maheshwari, Thomas Klingenbrunn
  • Publication number: 20150223160
    Abstract: A wireless network may have a plurality of access points (APs). A network device may select a first AP from the plurality of APs for a wireless client device to access the wireless network. The first AP may be selected based at least in part on network performance between the wireless client device and the network device. The network device may cause the wireless client device to associate with the first AP.
    Type: Application
    Filed: September 18, 2014
    Publication date: August 6, 2015
    Inventors: Sai Yiu Duncan Ho, Vishwanatha Sastry Katariki, Peerapol Tinnakornsrisuphap, Brian Michael Buesker
  • Patent number: 9100382
    Abstract: A configuration device is disclosed for configuring a network device in a communication network. The configuration device initiates pairing operations with the network device via a short-range communication connection. The configuration device determines whether the network device is in a registered state or an unregistered state. If the configuration device determines that the network device is in the unregistered state, the configuration device establishes a secure short-range communication channel between the configuration device and the network device. The configuration device transmits a network key to the network device via the secure short-range communication channel for configuring the network device to communicatively connect to the communication network. If the configuration device determines that the network device is in the registered state, the configuration device determines whether to unregister the network device.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 4, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Olivier Jean Benoit, Anand Palanigounder, Sai Yiu Duncan Ho, Aram Perez, Bibhu Prasad Mohanty, Etan Gur Cohen
  • Patent number: 9100179
    Abstract: Systems and methodologies are described herein that facilitate techniques for managing respective original transmissions and re-transmissions of information within a wireless communication system. Various mechanisms are described herein for processing a new data indicator (NDI) associated with respective transmissions conducted for one or more Hybrid Automatic Repeat Request (HARQ) processes. For example, for a HARQ process shared between distinct scheduling schemes, an NDI associated with a latter transmission can be regarded as toggled irrespective of the value of the NDI upon recognizing that a utilized scheduling scheme (e.g., as indicated via a radio network temporary identifier (RNTI) or the like) has changed between successive transmissions (e.g., from semi-persistent scheduling to dynamic scheduling), thereby allowing processing of the latter transmission as a transmission of new data.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: August 4, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Arnaud Meylan
  • Patent number: 9084209
    Abstract: Methods, systems, devices, and computer program products are disclosed which facilitate the transmission and reception of power headroom reports for component carriers in a multi carrier wireless communication system. A mobile device may determine available power headroom in a multicarrier configuration through a calculation of a maximum transmit power associated with a first component carrier (CC) in a subset of the CCs. The calculation can account for increases in transmit power of other component carriers in the subset by proportionally increasing transmit powers for each of the subset of CCs. A power headroom may be identified for one or more of the CCs based on a result of the calculation, and a power headroom report (PHR) may be generated that includes the power headroom available for the first CC.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: July 14, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Valentin Alexandru Gheorghiu, Sai Yiu Duncan Ho, Jelena M. Damnjanovic
  • Patent number: 9066286
    Abstract: A hybrid device can be configured to execute operations to select singleton coordinating functionality in a hybrid communication network. In one embodiment, a single master device (e.g., a hybrid device configured as both a registrar and a central access point (CAP)) can be selected. The hybrid device can transmit search messages to detect an existing master device and/or to identify other hybrid devices contending to become the master device. The hybrid device with the preferred device identifier is selected as the master device. In another embodiment, operations for selecting the coordinating functionality are split into two independent stages—a CAP selection stage and a registrar selection stage. In the CAP selection stage, the hybrid device with a preferred device weight (or a preferred device weight and a preferred device identifier) is configured as the CAP. In the registrar selection stage, similar operations can be executed to select the registrar.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 23, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Brian Michael Buesker, Ajay Kumar Vundyala, Sai Yiu Duncan Ho, Etan Gur Cohen, Rajesh Kumar, Peerapol Tinnakornsrisuphap
  • Patent number: 9021144
    Abstract: Systems and methodologies are described that facilitate utilizing timers in conjunction with transmitting buffer status reports (BSR). A prohibit timer can be utilized to determine when BSRs can be transmitted to an eNB. The prohibit timer can be initialized or restarted upon transmitting a BSR to an eNB. A BSR retransmit timer can be used to determine when to retransmit a BSR. The BSR retransmit timer can be initialized upon transmitting a BSR to an eNB and restarted each time an uplink resource allocation is received from the eNB. Once the timer expires, if an uplink transmission buffer contains data (e.g., size>0), the BSR can be retransmitted to the eNB. Control data feedback can additionally be used to determine when to retransmit the BSR. In addition, in either case, the timer duration values can be provided by the eNB.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 28, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Damnjanovic, Sai Yiu Duncan Ho
  • Patent number: 8995421
    Abstract: This innovation relates to systems and methods for transmission of protocol data units, and more particularly to processing polling requests from a radio link control peer. A radio link control transmitter can poll a receiver to obtain a report regarding the status of a set of data packets, and the polls can be sent in-band with a data packet. The receiver can determine to wait before sending the status report based on one or more characteristics of the received data packets.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: March 31, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Gang A. Xiao
  • Publication number: 20150085699
    Abstract: A network configurator can dynamically configure a device to couple network data between other devices in a wireless network. The devices can include two independent wireless transceivers that can each operate within different frequency bands, such as the 2.4 GHz and 5.0 GHz frequency bands. The configuration of the independent wireless transceivers can be based, at least in part, on device capabilities of the wireless transceivers, channel conditions, and a quality of service associated with the other wireless stations in the wireless network.
    Type: Application
    Filed: May 22, 2014
    Publication date: March 26, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Peerapol Tinnakornsrisuphap, Qingjiang Tian, Eyal Hochdorf, Xuetao Chen
  • Publication number: 20150052255
    Abstract: Access point functionality of a network device may be disabled, resulting in a coverage hole in a communication network and affecting performance of a client device. Various techniques can be implemented for detecting and minimizing coverage holes. In one embodiment, the network device can selectively establish a communication link with the client device depending on whether the client device is in a coverage hole and depending on whether the client device can detect another access point in the communication network. In some embodiments, the client device can determine that it is in a coverage hole in response to detecting a reserved SSID and can accordingly notify a central coordinator of the communication network. In some embodiments, the central coordinator can identify the network device (with disabled access point functionality) that can eliminate the coverage hole and can cause the network device to enable its access point functionality.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 19, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Yanjun Sun, Peerapol Tinnakornsrisuphap, Sai Yiu Duncan Ho, Bibhu Prasad Mohanty
  • Publication number: 20150049616
    Abstract: A hybrid device can implement functionality to automatically configure itself to form a home network with other network devices. If it is determined that the hybrid device is the central access point of a hybrid network, operating parameters are determined for the central access point. The central access point can then operate in conjunction with other non-CAP hybrid devices of the hybrid device to determine how to configure the non-CAP hybrid device. The configuration of the non-CAP hybrid device can be determined based, at least in part, on a communication link performance measurement between the CAP and the non-CAP hybrid device. Furthermore, the hybrid network can also be monitored to ensure that the hybrid devices do not repeatedly or randomly switch between different configurations.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Peerapol Tinnakornsrisuphap, Etan Gur Cohen, Bibhu Prasad Mohanty, Brian Michael Buesker, Rajesh Kumar, Anthony James Cowan
  • Publication number: 20150036596
    Abstract: Systems and methodologies are described that facilitate employing a variety of medium access control (MAC) header formats in wireless communications. The MAC header formats can be specialized for a particular type of data included in a protocol data unit (PDU). In addition, the MAC headers can have a variable length to accommodate payloads of varying sizes without incurring unnecessary overhead. Further, mechanisms are provided to enable direct access and delivery of control PDUs to associated protocol layers to ensure better quality of service treatment.
    Type: Application
    Filed: October 17, 2014
    Publication date: February 5, 2015
    Inventor: Sai Yiu Duncan Ho
  • Patent number: 8942208
    Abstract: Providing for improved error control signaling in wireless communications is disclosed herein. By way of example, multiple transmissions can be conducted for a HARQ process prior to a scheduled feedback signal on the HARQ process, causing a receiving device to combine the multiple transmissions, rather than treat them as separate transmissions. In this manner, multiple transmissions can be employed to increase overall receive energy, without violating maximum transmit power constraints in a wireless communication. Further, these multiple transmissions can be configured based on prevailing signal strength at the receiving device, or based on processing capabilities of the receiving device, providing flexible protocols that can accommodate advanced as well as legacy UEs in wide range of wireless conditions.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: January 27, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Luo, Durga Prasad Malladi, Xiaoxia Zhang, Juan Montojo, Sai Yiu Duncan Ho, Nathan Edward Tenny
  • Patent number: 8923814
    Abstract: Systems and methodologies are provided that facilitate security activation for wireless communications. In an aspect, a method for wireless communication is provided which includes determining a first security key for communicating with a source access point and receiving, from the source access point, a handover command that includes an indication of whether to apply a second security key upon handover. The method also includes handing over communication from the source access point to a target access point, where the second security key is applied for communicating with the target access point upon the handover when the handover command indicates to apply the second security key.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: December 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Masato Kitazoe, Sai Yiu Duncan Ho, Francesco Grilli, Nathan Edward Tenny
  • Patent number: 8917598
    Abstract: Systems and methodologies are described that facilitate providing flow control feedback for controlling downlink data transmission rates. Various schemes can be utilized to send the flow control feedback from an access terminal to a base station. For example, a control PDU (e.g., MAC control PDU, PDCP control PDU) can be generated based upon a level of resource utilization of the access terminal, and sent to the base station for controlling the downlink data transmission rate. Following this example, a type of control PDU, a value included within the control PDU, etc. can be selected as a function of the level of resource utilization. By way of another illustration, a CQI report that includes a value selected as a function of the level of resource utilization associated with the access terminal can be generated and transmitted to the base station for controlling the downlink data transmission rate.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 23, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Arnaud Meylan, Etienne F. Chaponniere, Francesco Grilli, Shailesh Maheshwari, Thomas Klingenbrunn
  • Publication number: 20140362695
    Abstract: Systems and methodologies are described that facilitate providing flow control feedback for controlling downlink data transmission rates. Various schemes can be utilized to send the flow control feedback from an access terminal to a base station. For example, a control PDU (e.g., MAC control PDU, PDCP control PDU) can be generated based upon a level of resource utilization of the access terminal, and sent to the base station for controlling the downlink data transmission rate. Following this example, a type of control PDU, a value included within the control PDU, etc. can be selected as a function of the level of resource utilization. By way of another illustration, a CQI report that includes a value selected as a function of the level of resource utilization associated with the access terminal can be generated and transmitted to the base station for controlling the downlink data transmission rate.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 11, 2014
    Inventors: Sai Yiu Duncan Ho, Arnaud Meylan, Etienne Francois Chaponniere, Francesco Grilli, Shailesh Maheshwari, Thomas Klingenbrunn
  • Publication number: 20140362776
    Abstract: An application may be associated with an application endpoint that is accessed via a wireless local area network. In this disclosure, a wireless station may select and associated with one of a plurality of access points that provides better application throughput to the application endpoint. The application throughput may be based upon a combination of the wireless link rate (between the wireless station and the access point) as well as a measured application data rate (from the access point to the application endpoint). An access point may measure and advertise application data rates for a plurality of application endpoints, including one or more servers coupled to the local area network, a gateway to a wide area network, and/or a server coupled to the wide area network.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 11, 2014
    Inventors: Qingjiang Tian, Peerapol Tinnakornsrisuphap, Sai Yiu Duncan Ho, Bibhu Mohanty, Arnaud Meylan
  • Patent number: 8908581
    Abstract: Systems and methodologies are described that facilitate operating an access terminal in an LTE based wireless communication environment utilizing extended microsleep. While in non-DRX mode, an access terminal can operate in on state for a first period of time and in extended microsleep state for a second period of time. Further, the first and second periods of time can form a repeating pattern where these periods of time alternate. Thus, the access terminal can turn on its receiver for the first period of time (e.g., decode downlink information while in on state) and turn off its receiver for the second period of time (e.g., inhibit decoding of downlink information while in extended microsleep state). Further, the first period of time in the repeating pattern can be one TTI (e.g., 1 ms) and the second period of time in the repeating pattern can be a plurality of TTIs (e.g., 5 ms).
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: December 9, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Aleksandar Damnjanovic
  • Patent number: 8902927
    Abstract: Systems and methodologies are described that facilitate employing a variety of medium access control (MAC) header formats in wireless communications. The MAC header formats can be specialized for a particular type of data included in a protocol data unit (PDU). In addition, the MAC headers can have a variable length to accommodate payloads of varying sizes without incurring unnecessary overhead. Further, mechanisms are provided to enable direct access and delivery of control PDUs to associated protocol layers to ensure better quality of service treatment.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: December 2, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Sai Yiu Duncan Ho
  • Patent number: 8873513
    Abstract: A method used in a wireless communication system including a plurality of cells, the method includes transmitting to a mobile device from a source enhanced node B, and sending a Packet Data Convergence Protocol (PDCP) status report to a target enhanced node B. Another method includes transmitting to a mobile device from a source enhanced node B, and sending a Packet Data Convergence Protocol (PDCP) status report to the source enhanced node B prior to a re-pointing to a target enhanced node B.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: October 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Etienne F. Chaponniere, Sai Yiu Duncan Ho