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: 10277294
    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: August 23, 2018
    Date of Patent: April 30, 2019
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Patent number: 10263683
    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 2, 2018
    Date of Patent: April 16, 2019
    Assignee: Apple Inc.
    Inventors: Yi Song, Lai King Tee, Jun Li
  • Patent number: 10206213
    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: January 18, 2018
    Date of Patent: February 12, 2019
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Jun Li, Yuqiang Tang, Neng Wang
  • Publication number: 20190033424
    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: September 20, 2018
    Publication date: January 31, 2019
    Inventors: Lai King Tee, Geng Wu, Jun Li, Yuqiang Tang, Neng Wang, Hua Xu, Jianglei Ma
  • Publication number: 20180367194
    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: August 23, 2018
    Publication date: December 20, 2018
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Patent number: 10097247
    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: December 8, 2016
    Date of Patent: October 9, 2018
    Assignee: Apple Inc.
    Inventors: Sairamesh Nammi, Shankar Venkatraman, Gaurav Hemrajani, Ashvin Chheda, Lai King Tee, Neng Wang, Kathiravetpillai Sivanesan
  • Patent number: 10082558
    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: August 21, 2017
    Date of Patent: September 25, 2018
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Geng Wu, Jun Li, Yuqiang Tang, Neng Wang, Hua Xu, Jianglei Ma
  • Publication number: 20180254818
    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: Application
    Filed: May 2, 2018
    Publication date: September 6, 2018
    Inventors: Yi Song, Lai King Tee, Jun Li
  • Patent number: 10063298
    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: February 12, 2018
    Date of Patent: August 28, 2018
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Publication number: 20180198565
    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: March 7, 2018
    Publication date: July 12, 2018
    Inventors: Jun Li, Lai King Tee
  • Publication number: 20180167114
    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: February 12, 2018
    Publication date: June 14, 2018
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Publication number: 20180160428
    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: Application
    Filed: January 18, 2018
    Publication date: June 7, 2018
    Inventors: Lai King Tee, Yi Song, Jun Li, Yuqiang Tang, Neng Wang
  • Patent number: 9985710
    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 9, 2017
    Date of Patent: May 29, 2018
    Assignee: Apple Inc.
    Inventors: Yi Song, Lai King Tee, Jun Li
  • Patent number: 9935741
    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: January 30, 2017
    Date of Patent: April 3, 2018
    Assignee: Apple Inc.
    Inventors: Jun Li, Lai King Tee
  • Patent number: 9923616
    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: October 24, 2016
    Date of Patent: March 20, 2018
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Patent number: 9913276
    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: October 17, 2016
    Date of Patent: March 6, 2018
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Jun Li, Yuqiang Tang, Neng Wang
  • Patent number: 9860711
    Abstract: The present invention provides a solution to improve coverage and cell edge performance in a mobile user communication system is the use of fixed relays, which are pieces of infrastructure without a wired backhaul connection. The relays transmit or “relay” downlink messages between the base station (BS) and mobile stations (MSs) through a multi-hop communication. The present invention is a method and system for supporting a multiple user mobile broadband communication network that includes relay techniques suitable for user equipment in the downlink communication to the user equipment.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: January 2, 2018
    Assignee: Apple Inc.
    Inventors: Hua Xu, Jianglei Ma, Hang Zhang, Ming Jia, Peiying Zhu, Lai King Tee, Jun Li
  • Publication number: 20170343642
    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 21, 2017
    Publication date: November 30, 2017
    Inventors: Lai King Tee, Geng Wu, Jun Li, Yuqiang Tang, Neng Wang, Hua Xu, Jianglei Ma
  • Publication number: 20170244464
    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 fornling 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: Application
    Filed: May 9, 2017
    Publication date: August 24, 2017
    Inventors: Yi Song, Lai King Tee, Jun Li
  • Patent number: 9739869
    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: August 19, 2016
    Date of Patent: August 22, 2017
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Geng Wu, Jun Li, Yuqiang Tang, Neng Wang, Hua Xu, Jianglei Ma