Patents by Inventor Patrick Lie Chin Cheong

Patrick Lie Chin Cheong 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: 10911188
    Abstract: Systems and methods related to optimized selection, or determination of, Hybrid Automatic Repeat Request (HARQ) feedback modes for downlink transmissions by considering Time Division Duplexing (TDD) uplink/downlink (UL/DL) configuration, transmission mode, cell load, and/or traffic type are disclosed. In this manner, performance can be improved.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: February 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xixian Chen, Akram Bin Sediq, Mercy George, Patrick Lie Chin Cheong, Jianguo Long, Yongquan Qiang
  • Patent number: 10575363
    Abstract: Systems and methods relating to an unacknowledged connection release in a cellular communications network are disclosed. In some embodiments, a method of operation of a base station in a cellular communications network comprises sending a connection release message to a wireless device that is in an Out-of-Sync (OOS) state and releasing a connection with the wireless device without receiving, from the wireless device, an acknowledgement of receipt of the connection release message. In this manner, signaling overhead for releasing the connection of the wireless device that is in OOS state is substantially reduced.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: February 25, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar Bergquist, Ahmed Nouah, Akram Bin Sediq, Patrick Lie Chin Cheong
  • Patent number: 10506479
    Abstract: A network node obtains capability information indicating whether neighbor network nodes support special user equipments (UEs), receives a measurement report for the neighbor network nodes from a special UE, and selects one of the network nodes as a target node for handover of the special UE based on the received measurement report and the obtained capability information.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: December 10, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Chandra Bontu, Prabaharan Kanesalingam, Patrick Lie Chin Cheong, Bing Hu Z
  • Patent number: 10492172
    Abstract: A network node may identify a location to be allocated for a multicast message within a transmission subframe based on at least information identifying the transmission subframe, and then transmit the multicast message at the identified location in the transmission subframe. A network node may also identify a transmission subframe in which to transmit a multicast message, allocate transmission resources in the transmission subframe for the multicast message, and transmit information indicating a location of the allocated transmission resources in the transmission subframe in a control signal message having a transmission power adjusted based on at least one of information identifying the transmission subframe and a code redundancy version of the multicast message.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: November 26, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Chandra Bontu, Prabaharan Kanesalingam, Patrick Lie Chin Cheong
  • Publication number: 20190319751
    Abstract: Systems and methods related to optimized selection, or determination of, Hybrid Automatic Repeat Request (HARQ) feedback modes for downlink transmissions by considering Time Division Duplexing (TDD) uplink/downlink (UL/DL) configuration, transmission mode, cell load, and/or traffic type are disclosed. In this manner, performance can be improved.
    Type: Application
    Filed: February 15, 2017
    Publication date: October 17, 2019
    Inventors: Xixian CHEN, Akram BIN SEDIQ, Mercy GEORGE, Patrick LIE CHIN CHEONG, Jianguo LONG, Yongquan QIANG
  • Patent number: 10342063
    Abstract: Methods and apparatus are described of changing the discontinuous reception (DRX) configuration for a connection between a mobile device (50) and a base station (20) that reduces the likelihood of a dropped connection. A mobile device (50) receives updated configuration parameters for the connection from a base station. A mobile device (50) receives updated configuration parameters for the connection from a base station (20). The mobile device (50) postpones the adoption of the new configuration parameters and continues using previous configuration parameters for the connection after receipt of the new configuration parameters until a subsequent on duration of a DRX cycle has occurred according to the previous configuration. The mobile device (50) applies the updated configuration parameters for the connection in the subsequent on duration. Thereafter, the mobile device (50) turns its receiver on and off in DRX mode according to the new DRX configuration.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 2, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar Bergquist, Patrick Lie Chin Cheong
  • Patent number: 10278202
    Abstract: Systems and methods related to scheduling for a cluster of cells controlled by a base station of a cellular communications network are disclosed. In some embodiments, a method of operation of a base station in a cellular communications network to provide scheduling for a cluster of cells controlled by the base station is provided. In some embodiments, the method of operation of the base station comprises identifying a first set of Radio Access Bearers (RABs) for cluster scheduling for a Transmit Time Interval (TTI) and a second set of RABs for individual cell scheduling for the TTI, where the first set of RABs and the second set of RABs are non-overlapping sets. The method further includes performing cluster scheduling for the first set of RABs for the TTI and performing individual cell scheduling for the second set of RABs for the TTI.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: April 30, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Chandra Sekhar Bontu, Peter Hazy, Patrick Lie Chin Cheong
  • Publication number: 20190007993
    Abstract: Systems and methods relating to an unacknowledged connection release in a cellular communications network are disclosed. In some embodiments, a method of operation of a base station in a cellular communications network comprises sending a connection release message to a wireless device that is in an Out-of-Sync (OOS) state and releasing a connection with the wireless device without receiving, from the wireless device, an acknowledgement of receipt of the connection release message. In this manner, signaling overhead for releasing the connection of the wireless device that is in OOS state is substantially reduced.
    Type: Application
    Filed: January 5, 2017
    Publication date: January 3, 2019
    Inventors: Gunnar Bergquist, Ahmed Nouah, Akram Bin Sediq, Patrick Lie Chin Cheong
  • Patent number: 10159109
    Abstract: A node and method for extending a wake up time of a wireless user equipment (UE) are provided. The node includes a memory. The memory is configured to store data to be transmitted to the UE. The node includes a processor configured to determine if the memory is storing data to be transmitted to the UE, determine if the wake up time of the UE coincides with a periodic subframe, the periodic subframe occurring with a periodicity and cause transmission of a message for a grant to the UE if the determination is made that the memory is storing data to be transmitted to the UE and the wake up time of the UE coincides with the periodic subframe.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: December 18, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Prabaharan Kanesalingam, Chandra Sekhar Bontu, Alexander Langereis, Patrick Lie Chin Cheong
  • Publication number: 20180220394
    Abstract: A network node may identify a location to be allocated for a multicast message within a transmission subframe based on at least information identifying the transmission subframe, and then transmit the multicast message at the identified location in the transmission subframe. A network node may also identify a transmission subframe in which to transmit a multicast message, allocate transmission resources in the transmission subframe for the multicast message, and transmit information indicating a location of the allocated transmission resources in the transmission subframe in a control signal message having a transmission power adjusted based on at least one of information identifying the transmission subframe and a code redundancy version of the multicast message.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 2, 2018
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Chandra Bontu, Prabaharan Kanesalingam, Patrick Lie Chin Cheong
  • Publication number: 20180192335
    Abstract: A network node obtains capability information indicating whether neighbor network nodes support special user equipments (UEs), receives a measurement report for the neighbor network nodes from a special UE, and selects one of the network nodes as a target node for handover of the special UE based on the received measurement report and the obtained capability information.
    Type: Application
    Filed: June 13, 2016
    Publication date: July 5, 2018
    Inventors: Chandra BONTU, Prabaharan KANESALINGAM, Patrick LIE CHIN CHEONG, Bing HU Z
  • Publication number: 20180183485
    Abstract: A wireless communication device receives an indication of timing alignment of a discontinuous reception (DRX) duration, determines a timing alignment for a reception/transmission (RX/TX) switching pattern of the wireless communication device based on the timing alignment of the DRX duration, and performs half-duplex (HD) communication with a radio access node according to the RX/TX switching pattern having the determined timing alignment.
    Type: Application
    Filed: June 15, 2016
    Publication date: June 28, 2018
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Chandra BONTU, Prabaharan KANESALINGAM, Patrick LIE CHIN CHEONG
  • Patent number: 10009789
    Abstract: To relieve signaling congestion, UEs (30) having delay-tolerant data are moved more rapidly to the non UL synchronized state, freeing up PUCCH resources for users that have not indicated a delay-tolerance. In one embodiment, a resource conservative mode is defined for a UE (30) having delay-tolerant data (e.g., from a “background” app); otherwise, the UE (30) assumes a default mode. In one embodiment, the network sends the UE a pair of first and a second values (or indices to them) for a Time Alignment Timer, TAT (56, 66) in the UE (30). The first value—which is typically smaller than the second value—is used by the UE (30) in the resource conservative mode when the user data plane is internally concluded as being delay-tolerant or has already been confirmed to be delay-tolerant; the second value is used otherwise (i.e., in default mode). In the resource conservative mode, the shorter TAT value moves the UE from PUCCH more rapidly, and the UE (30) uses random access for infrequent scheduling requests.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: June 26, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar Bergquist, Johnny Karlsen, Patrick Lie Chin Cheong, Mauro Martins, Ahmed Nouah, Landdy Zhang
  • Patent number: 9887827
    Abstract: In one embodiment, a method of operating a radio access node is provided. The method comprises determining whether support from a secondary cell is required for a wireless device to communicate with the radio access node, and, in response to determining that support from the secondary cell is required, calculating a modified channel condition outer-loop value for the secondary cell; and using the modified channel condition outer-loop value in an initial activation decision step for the secondary cell. The initial activation decision step may comprise activating the secondary cell in response to determining that the sum of a device reported channel condition value and the modified channel condition outer-loop value is above an activation threshold. Corresponding devices, computer programs and radio access nodes adapted to carry out the methods provided are also disclosed.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: February 6, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ping Yu, Peter Hazy, Xixian Chen, James Jianfeng Weng, Ying Shao, Patrick Lie Chin Cheong, Guoqiang Lu, Hong Yu
  • Publication number: 20170353967
    Abstract: Systems and methods related to scheduling for a cluster of cells controlled by a base station of a cellular communications network are disclosed. In some embodiments, a method of operation of a base station in a cellular communications network to provide scheduling for a cluster of cells controlled by the base station is provided. In some embodiments, the method of operation of the base station comprises identifying a first set of Radio Access Bearers (RABs) for cluster scheduling for a Transmit Time Interval (TTI) and a second set of RABs for individual cell scheduling for the TTI, where the first set of RABs and the second set of RABs are non-over-lapping sets. The method further includes performing cluster scheduling for the first set of RABs for the TTI and performing individual cell scheduling for the second set of RABs for the TTI.
    Type: Application
    Filed: January 5, 2015
    Publication date: December 7, 2017
    Inventors: Chandra Sekhar Bontu, Peter Hazy, Patrick Lie Chin Cheong
  • Publication number: 20170156176
    Abstract: Methods and apparatus are described of changing the discontinuous reception (DRX) configuration for a connection between a mobile device (50) and a base station (20) that reduces the likelihood of a dropped connection. A mobile device (50) receives updated configuration parameters for the connection from a base station. A mobile device (50) receives updated configuration parameters for the connection from a base station (20). The mobile device (50) postpones the adoption of the new configuration parameters and continues using previous configuration parameters for the connection after receipt of the new configuration parameters until a subsequent on duration of a DRX cycle has occurred according to the previous configuration. The mobile device (50) applies the updated configuration parameters for the connection in the subsequent on duration. Thereafter, the mobile device (50) turns its receiver on and off in DRX mode according to the new DRX configuration.
    Type: Application
    Filed: May 17, 2016
    Publication date: June 1, 2017
    Inventors: Gunnar Bergquist, Patrick Lie Chin Cheong
  • Publication number: 20170150391
    Abstract: To relieve signaling congestion, UEs (30) having delay-tolerant data are moved more rapidly to the non UL synchronized state, freeing up PUCCH resources for users that have not indicated a delay-tolerance. In one embodiment, a resource conservative mode is defined for a UE (30) having delay-tolerant data (e.g., from a “background” app); otherwise, the UE (30) assumes a default mode. In one embodiment, the network sends the UE a pair of first and a second values (or indices to them) for a Time Alignment Timer, TAT (56, 66) in the UE (30). The first value—which is typically smaller than the second value—is used by the UE (30) in the resource conservative mode when the user data plane is internally concluded as being delay-tolerant or has already been confirmed to be delay-tolerant; the second value is used otherwise (i.e., in default mode). In the resource conservative mode, the shorter TAT value moves the UE from PUCCH more rapidly, and the UE (30) uses random access for infrequent scheduling requests.
    Type: Application
    Filed: May 17, 2016
    Publication date: May 25, 2017
    Applicant: Telefonaktiebolaget LM Ericsson (PUBL)
    Inventors: Gunnar Bergquist, Johnny Karlsen, Patrick Lie Chin Cheong, Mauro Martins, Ahmed Nouah, Landdy Zhang
  • Publication number: 20170142775
    Abstract: A node and method for extending a wake up time of a wireless user equipment (UE) are provided. The node includes a memory. The memory is configured to store data to be transmitted to the UE. The node includes a processor configured to determine if the memory is storing data to be transmitted to the UE, determine if the wake up time of the UE coincides with a periodic subframe, the periodic subframe occurring with a periodicity and cause transmission of a message for a grant to the UE if the determination is made that the memory is storing data to be transmitted to the UE and the wake up time of the UE coincides with the periodic subframe.
    Type: Application
    Filed: July 18, 2014
    Publication date: May 18, 2017
    Inventors: Prabaharan KANESALINGAM, Chandra Sekhar BONTU, Alexander LANGEREIS, Patrick LIE CHIN CHEONG
  • Patent number: 9642059
    Abstract: A method and system for coordinated interference suppression in a communication system. The communication system implements at least a first radio access technology via a first base station and a second radio access technology via a second base station. The first and second radio access technologies differ from one another. Information relating to an interference signal received at the first base station via the first radio access technology is received at the second base station from a first device associated with the first base station. At a second device associated with the second base station, an interfering user equipment accessing the second base station via the second radio access technology is identified. The identification is based on the information received from the first device associated with the first base station. Interference caused by the identified interfering user equipment is suppressed by the second base station.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: May 2, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Xiao-Dong Li, Patrick Lie Chin Cheong, Carl Cao
  • Publication number: 20160277172
    Abstract: In one embodiment, a method of operating a radio access node is provided. The method comprises determining whether support from a secondary cell is required for a wireless device to communicate with the radio access node, and, in response to determining that support from the secondary cell is required, calculating a modified channel condition outer-loop value for the secondary cell; and using the modified channel condition outer-loop value in an initial activation decision step for the secondary cell, The initial activation decision step may comprise activating the secondary cell in response to determining that the sum of a device reported channel condition value and the modified channel condition outer-loop value is above an activation threshold. Corresponding devices, computer programs and radio access nodes adapted to carry out the methods provided are also disclosed.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 22, 2016
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Ping YU, Peter HAZY, Xixian CHEN, James Jianfeng WENG, Ying SHAO, Patrick LIE CHIN CHEONG, Guoqiang LU, Hong YU