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: 8817590
    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: November 4, 2009
    Date of Patent: August 26, 2014
    Assignee: Apple Inc.
    Inventors: Lai-King Tee, Yi Song, Neng Wang, Chuandong Li
  • Publication number: 20140169309
    Abstract: To control allocation of a portion of a shared channel to use for control information, a base station determines an amount of resource elements of the shared channel to use for the control information in place of traffic data. The base station sends, to a mobile station, an indication relating to an offset parameter, where the indication is provided to allow the mobile station to compute a value for the offset parameter such that the mobile station can determine the amount of the resource elements of the shared channel to allocate for the control information.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: Rockstar Consortium US LP
    Inventors: Lai-King TEE, Neng WANG, Yi SONG
  • Patent number: 8750933
    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 improve user mobility tracking. Feedback and reporting rules can be established using a particular field designator, CQI, in the preferred embodiment.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: June 10, 2014
    Assignee: Apple Inc.
    Inventors: Yi Song, Lai King Tee, Jun Li
  • Publication number: 20140119467
    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: Application
    Filed: January 3, 2014
    Publication date: May 1, 2014
    Applicant: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Patent number: 8666387
    Abstract: A method and wireless system that is able to adapt forward channel signal parameters to the different channel characteristics in each deployment environment. For example, the base station may update the waveform parameters based upon the real-time channel measurement feedback as received from the subscriber stations.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: March 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Lai King Tee, Cornelius van Rensburg, Joseph R. Cleveland
  • Patent number: 8644764
    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: February 4, 2014
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Publication number: 20130343339
    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: Application
    Filed: August 21, 2013
    Publication date: December 26, 2013
    Applicant: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Publication number: 20130343311
    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: August 23, 2013
    Publication date: December 26, 2013
    Applicant: Apple Inc.
    Inventors: Lai-King Tee, Yi Song, Jun Li, Yuqiang Tang, Neng Wang
  • Publication number: 20130336416
    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: Application
    Filed: August 21, 2013
    Publication date: December 19, 2013
    Applicant: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Patent number: 8605570
    Abstract: A method for generating a superframe preamble for a superframe in an orthogonal frequency division multiplexing network is provided. The superframe preamble comprises a plurality of symbols. For a first one of the symbols, a first set of subcarriers of a carrier is allocated to a first broadcast channel, with the first set of subcarriers distributed over substantially the entire carrier. For the first one of the symbols, a second set of subcarriers of the carrier is allocated to a second broadcast channel.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: December 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Lai-King Tee, Mohamed A. El-Rayes, Baowei Ji
  • Patent number: 8537760
    Abstract: A method of dynamic hybrid multiple access in a wireless network that comprises a plurality of subscriber stations is provided. The method includes selecting a sub-carrier status for each of the subscriber stations based on at least one predetermined condition for the subscriber station. The sub-carrier status is either hopping or scheduled. The predetermined condition is monitored for each subscriber station to determine whether to switch the sub-carrier status for the subscriber station based on a change in the predetermined condition.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: September 17, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Lai King Tee, Cornelius van Rensburg, Jiann-An Tsai
  • Patent number: 8531958
    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: February 27, 2009
    Date of Patent: September 10, 2013
    Assignee: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Patent number: 8520621
    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: November 4, 2009
    Date of Patent: August 27, 2013
    Assignee: Apple Inc.
    Inventors: Lai-King Tee, Yi Song, Jun Li, Yuqiang Tang, Neng Wang
  • Patent number: 8391797
    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: April 28, 2009
    Date of Patent: March 5, 2013
    Assignee: Apple Inc.
    Inventors: Lai King Tee, Yi Song, Neng Wang
  • Publication number: 20130039312
    Abstract: In a communications system, a mobile station receives, from a base station, a downlink control message associated with an indication that particular control information is to be transmitted by the mobile station on an uplink traffic channel on a repeated basis. In response to receiving the downlink control message associated with the indication, the particular control information is transmitted on the uplink traffic channel to a base station on a repeated basis.
    Type: Application
    Filed: September 14, 2012
    Publication date: February 14, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Lai King TEE, Jun LI
  • Publication number: 20120163282
    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: Application
    Filed: October 30, 2009
    Publication date: June 28, 2012
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Hua Xu, Jianglei Ma, Hang Zhang, Ming Jia, Peiying Zhu, Lai King Tee, Jun Li
  • Publication number: 20120039322
    Abstract: In a communications system, a mobile station receives, from a base station, a downlink control message associated with an indication that particular control information is to be transmitted by the mobile station on an uplink traffic channel on a repeated basis. In response to receiving the downlink control message associated with the indication, the particular control information is transmitted on the uplink traffic channel to a base station on a repeated basis.
    Type: Application
    Filed: April 14, 2010
    Publication date: February 16, 2012
    Inventors: Lai-King Tee, Jun Li
  • Publication number: 20110286349
    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 EU-TRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for POSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and POSCH 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: February 5, 2010
    Publication date: November 24, 2011
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Lai King Tee, Geng Wu, Jun Li, Yuqiang Tang, Neng Wang, Hua Xu, Jianglei Ma
  • Publication number: 20110274066
    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: November 4, 2009
    Publication date: November 10, 2011
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Lai-King Tee, Yi Song, Jun Li, Yuqiang Tang, Neng Wang
  • Publication number: 20110206018
    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 devalue. 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: November 4, 2009
    Publication date: August 25, 2011
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Jun Li, Lai-King Tee