Patents by Inventor Lai King Tee

Lai King Tee 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: 9680536
    Abstract: The present invention is a method and system for supporting a beamforming antenna system in a mobile broadband communication network with an improved beam pattern, beam sweep pattern, pilot channel design with feedback and reporting rules, and control signaling design. Specifically, the improved beam pattern includes a method of supporting wireless communications in a wireless network forming at least two spatial beams within a cell segment where the at least two spatial beams are associated with different power levels, and separately, where at least two spatial beams can be moved across the cell segment according to a unique sweep pattern. The pilot channel design improves network bandwidth performance and improves user mobility tracking Feedback and reporting rules can be established using a particular field designator, CQI, in the preferred embodiment.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: June 13, 2017
    Assignee: Apple Inc.
    Inventors: Yi Song, Lai King Tee, Jun Li
  • Publication number: 20170141881
    Abstract: In general, to provide acknowledgment information by a first wireless device, the first wireless device sends repeated instances of acknowledgment information in respective first and second frame structures, in response to receipt of first information from a second wireless device. In addition, the first wireless device also sends further acknowledgment information in the second frame structure that is responsive to second information received from the second wireless device.
    Type: Application
    Filed: January 30, 2017
    Publication date: May 18, 2017
    Inventors: Jun Li, Lai King Tee
  • Publication number: 20170124276
    Abstract: A mobile application is used for monitoring and management of users or patients with various health or disease conditions. Software system provides a platform with which the medical histories, the recent conditions and real-time measurement data for the patient can be organized and shared among various people who are involved in the caring of the patient. In addition to data sharing in a secured, private networking environment, the platform integrates the essential functions for people in the various caregivers' groups to communicate with each other in real-time so as to collaborate on the caring of the patient.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 4, 2017
    Inventor: Lai King Tee
  • Publication number: 20170085305
    Abstract: To report feedback information regarding a wireless channel, a mobile station determines whether a predefined condition is satisfied. In response to determining that the predefined condition is satisfied, feedback information regarding an individual one of plural subbands of the wireless channel is included in a first report to be sent to a base station. In response to determining that the predefined condition is not satisfied, aggregate feedback information regarding the plural subbands is included in a second report to be sent to the base station.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 23, 2017
    Inventors: Sairamesh Nammi, Shankar Venkatraman, Gaurav Hemrajani, Ashvin Chheda, Lai King Tee, Neng Wang, Kathiravetpillai Sivanesan
  • Publication number: 20170074971
    Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.
    Type: Application
    Filed: August 19, 2016
    Publication date: March 16, 2017
    Inventors: Lai King Tee, Geng Wu, Jun Li, Yuqiang Tang, Neng Wang, Hua Xu, Jianglei Ma
  • Patent number: 9571233
    Abstract: In general, to provide acknowledgment information by a first wireless device, the first wireless device sends repeated instances of acknowledgment information in respective first and second frame structures, in response to receipt of first information from a second wireless device. In addition, the first wireless device also sends further acknowledgment information in the second frame structure that is responsive to second information received from the second wireless device.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: February 14, 2017
    Assignee: Apple Inc.
    Inventors: Jun Li, Lai King Tee
  • Publication number: 20170041055
    Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
    Type: Application
    Filed: October 24, 2016
    Publication date: February 9, 2017
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Publication number: 20170034828
    Abstract: A mobile station receives a downlink control structure in a first carrier, where the downlink control structure indicates that control information for the mobile station is on a second, different carrier. The mobile station decodes the control information in the second carrier, where the control information specitl.es resource allocation of a wireless link for the mobile station. More specifically, according to some implementations, the control channel in the first carrier specifies the resource allocation for an extended control channel in the second carrier, where the extended control channel specifies the resource allocation for traffic data of a wireless link for the mobile station.
    Type: Application
    Filed: October 17, 2016
    Publication date: February 2, 2017
    Inventors: Lai King Tee, Yi Song, Jun Li, Yuqiang Tang, Neng Wang
  • Patent number: 9548803
    Abstract: The present disclosure provides for an improved application of signal strength weightings in an SDMA sectored cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in an SDMA sectored cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: January 17, 2017
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Patent number: 9520928
    Abstract: To report feedback information regarding a wireless channel, a mobile station determines whether a predefined condition is satisfied. In response to determining that the predefined condition is satisfied, feedback information regarding an individual one of plural subbands of the wireless channel is included in a first report to be sent to a base station. In response to determining that the predefined condition is not satisfied, aggregate feedback information regarding the plural subbands is included in a second report to be sent to the base station.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: December 13, 2016
    Assignee: Apple Inc.
    Inventors: Sairamesh Nammi, Shankar Venkatraman, Gaurav Hemrajani, Ashvin Chheda, Lai King Tee, Neng Wang, Kathiravetpillai Sivanesan
  • Patent number: 9520927
    Abstract: To report feedback information regarding a wireless channel, a mobile station determines whether a predefined condition is satisfied. In response to determining that the predefined condition is satisfied, feedback information regarding an individual one of plural subbands of the wireless channel is included in a first report to be sent to a base station. In response to determining that the predefined condition is not satisfied, aggregate feedback information regarding the plural subbands is included in a second report to be sent to the base station.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: December 13, 2016
    Assignee: Apple Inc.
    Inventors: Sairamesh Nammi, Shankar Venkatraman, Gaurav Hemrajani, Ashvin Chheda, Lai King Tee, Neng Wang, Kathiravetpillai Sivanesan
  • Patent number: 9515713
    Abstract: To report feedback information regarding a wireless channel, a mobile station determines whether a predefined condition is satisfied. In response to determining that the predefined condition is satisfied, feedback information regarding an individual one of plural subbands of the wireless channel is included in a first report to be sent to a base station. In response to determining that the predefined condition is not satisfied, aggregate feedback information regarding the plural subbands is included in a second report to be sent to the base station.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: December 6, 2016
    Assignee: Apple Inc.
    Inventors: Sairamesh Nammi, Shankar Venkatraman, Gaurav Hemrajani, Ashvin Chheda, Lai King Tee, Neng Wang, Kathiravetpillai Sivanesan
  • Patent number: 9485755
    Abstract: A mobile station receives a downlink control structure in a first carrier, where the downlink control structure indicates that control information for the mobile station is on a second, different carrier. The mobile station decodes the control information in the second carrier, where the control information specifies resource allocation of a wireless link for the mobile station. More specifically, according to some implementations, the control channel in the first carrier specifies the resource allocation for an extended control channel in the second carrier, where the extended control channel specifies the resource allocation for traffic data of a wireless link for the mobile station.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: November 1, 2016
    Assignee: Apple Inc.
    Inventors: Lai-King Tee, Yi Song, Jun Li, Yuqiang Tang, Neng Wang
  • Patent number: 9479239
    Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: October 25, 2016
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Patent number: 9423488
    Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: August 23, 2016
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Geng Wu, Jun Li, Yuqiang Tang, Neng Wang, Hua Xu, Jianglei Ma
  • Patent number: 9386569
    Abstract: In general, according to an embodiment, a wireless transmitter includes a plurality of coding and modulation modules to apply corresponding coding and modulation algorithms to input information blocks. A discrete Fourier transform (DFT) precoder applies DFT processing to outputs of the coding and modulation modules, and an inverse fast Fourier transform (IFFT) module receives a DFT output of the DFT precoder, which is mapped to different subcarriers according to the resource allocation indicated by the base station, and applies IFFT processing to the DFT output. An output processing stage produces output signals based on the output of the IFFT module to transmit wirelessly to a wireless receiver. In a different implementation, the outputs of the coding and modulation modules can be provided to an IFFT module to produce IFFT-processed output information.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: July 5, 2016
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang, Chuandong Li
  • Patent number: 9374142
    Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: June 21, 2016
    Assignee: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Publication number: 20160134346
    Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
    Type: Application
    Filed: January 18, 2016
    Publication date: May 12, 2016
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Patent number: 9270351
    Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: February 23, 2016
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Publication number: 20160036567
    Abstract: In general, to provide acknowledgment information by a first wireless device, the first wireless device sends repeated instances of acknowledgment information in respective first and second frame structures, in response to receipt of first information from a second wireless device. In addition, the first wireless device also sends further acknowledgment information in the second frame structure that is responsive to second information received from the second wireless device.
    Type: Application
    Filed: October 15, 2015
    Publication date: February 4, 2016
    Inventors: Jun Li, Lai King Tee