Patents by Inventor Kelvin Kar-Kin Au

Kelvin Kar-Kin Au 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: 10736090
    Abstract: A New Radio (NR) control signal that indicates one or more Long Term Evolution (LTE) network parameters may be transmitted to NR UEs to enable the NR UEs to identify which resources carry LTE signal(s). The NR UEs may then receive one or more NR downlink signals over remaining resources in a set of resources without processing those resources that carry LTE signal(s). The NR downlink signals may have a zero power level, or otherwise be blanked, over resources that carry the LTE signal(s).
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: August 4, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Amine Maaref, Kelvin Kar Kin Au, Jianglei Ma
  • Patent number: 10735166
    Abstract: A method and system for operating a user equipment (UE) wherein a first set of radio access procedures are supported when the UE is in a first operating state, and a second set of radio access procedures are supported when the UE is in a second operating state.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: August 4, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kelvin Kar Kin Au, Liqing Zhang, Mohammadhadi Baligh, Jianglei Ma, Wen Tong
  • Patent number: 10728845
    Abstract: An apparatus and method for a wireless device to receive data in an eco state is provided. According to an embodiment of the disclosure, upon determining that data is to be transmitted to the wireless device in the eco state, a network node operates to transmit a unicast notification message to the wireless device in order to inform the wireless device of the impending data transmission. According to another embodiment of the disclosure, in response to receiving the unicast notification message, the wireless device operates to receive the data in accordance with the unicast notification message. To this end, the wireless device might for example try to receive data for a time period following the unicast notification message. Meanwhile, the wireless device may remain in the eco state.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: July 28, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Kelvin Kar Kin Au, Liqing Zhang, Jianglei Ma
  • Patent number: 10728072
    Abstract: The time-frequency resources of a particular numerology may be used to transmit OFDM symbols that have a cyclic prefix that is longer than the cyclic prefix of other OFDM symbols. This may complicate alignment across different numerologies. Time-frequency resource partitions are disclosed herein that may assist in symbol alignment and/or subframe alignment across the different numerologies.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: July 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Toufiqul Islam, Kelvin Kar Kin Au, Jianglei Ma, Liqing Zhang, Zhenfei Tang
  • Patent number: 10728743
    Abstract: Methods and Devices that provide mechanisms for an air interface capability exchange are disclosed. The air interface capability exchange enables a user equipment device to signal its air interface configuration capabilities to a network device to facilitate software configurable air interface (SoftAI) optimization. The air interface capability exchange involves a UE device signaling information regarding an air interface configuration capability type of the device's air interface. The air interface configuration capability type identifies whether the device supports multiple air interface configurations of the air interface. The UE device may also transmit information regarding air interface configuration options that it supports. The network device may determine a configuration for the UE device's air interface based at least in part on the information provided by the UE device.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 28, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Kelvin Kar Kin Au, Jianglei Ma
  • Patent number: 10721776
    Abstract: A system and method includes implementing, by a base station (BS), a reliable ultra-low latency transmission mechanism in a grant-free uplink transmission scheme having defined therein contention transmission unit (CTU) access regions and a plurality of CTUs. Implementing the reliable ultra-low latency transmission mechanism includes defining a reliable ultra-low latency CTU (RULL-CTU) access region from a portion of the CTU access regions of the grant-free transmission scheme, defining an RULL-CTU mapping scheme by mapping at least a portion of plurality of CTUs to the RULL-CTU access region to define a plurality of RULL-CTUs, defining a reliable ultra-low latency user equipment (RULL-UE) mapping scheme by defining rules for mapping a plurality of RULL-UEs to the plurality of RULL-CTUs in an initial pattern for initial transmissions in a first transmission time interval (TTI), and a regrouped pattern for redundant transmissions in a second TTI subsequent to the first TTI.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: July 21, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Kelvin Kar Kin Au, Liqing Zhang, Jianglei Ma
  • Patent number: 10721041
    Abstract: Different filtered-orthogonal frequency division multiplexing (f-OFDM) frame formats may be used to achieve the spectrum flexibility. F-OFDM waveforms are generated by applying a pulse shaping digital filter to an orthogonal frequency division multiplexed (OFDM) signal. Different frame formats may be used to carry different traffic types as well as to adapt to characteristics of the channel, transmitter, receiver, or serving cell. The different frame formats may utilize different sub-carrier (SC) spacings and/or cyclic prefix (CP) lengths. In some embodiments, the different frame formats also utilize different symbol durations and/or transmission time interval (TTI) lengths.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: July 21, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kelvin Kar Kin Au, Jianglei Ma, Liqing Zhang
  • Publication number: 20200229017
    Abstract: This application discloses a communications method and apparatus, the method including sending a synchronization/broadcast signal block of a serving cell or a camping cell, sending at least one piece of cell measurement configuration information to a terminal device, where the at least one piece of cell measurement configuration information comprises N pieces of information indicating actual sending of a synchronization/broadcast signal block, and the N pieces of information indicating actual sending of a synchronization/broadcast signal block are used to indicate information about actually sent synchronization/broadcast signal blocks of M cells, where 1?N?M, where M is a quantity of measurement cells of the terminal device, and where both N and M are positive integers, and sending synchronization/broadcast signal blocks of the M measurement cells.
    Type: Application
    Filed: March 27, 2020
    Publication date: July 16, 2020
    Inventors: Jin Liu, Pu Yuan, Keyvan Zarifi, Jun Luo, Kelvin Kar Kin Au
  • Publication number: 20200214082
    Abstract: This application provides a time configuration method, a network device, and a terminal. A sending time of a reference signal is determined according to an on duration period, or an on duration period is determined according to a sending time of a reference signal, so that the sending time of the reference signal is associated with the on duration period.
    Type: Application
    Filed: February 7, 2020
    Publication date: July 2, 2020
    Inventors: Jun Luo, Keyvan Zarifi, Kelvin Kar Kin Au, Zhengzheng Xiang, Jin Liu
  • Patent number: 10700904
    Abstract: Systems and methods of transmitting using different cyclic prefix types are provided. In some embodiments, the cyclic prefix type used changes on a per time interval based on characteristics of the traffic. In some embodiments, different cyclic prefix types are used simultaneously during a time interval for different traffic types.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: June 30, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Mohamed Adel Salem, Toufiqul Islam, Jianglei Ma, Kelvin Kar Kin Au
  • Patent number: 10680864
    Abstract: For a wireless communications system, scalable orthogonal frequency division multiplexing (OFDM) numerology is incorporated in a manner that can apply to radio link transmissions in future wireless network for frequency division duplex (FDD) and time division duplex (TDD) communications.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: June 9, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Liqing Zhang, Kelvin Kar Kin Au, Jianglei Ma, Wen Tong, Toufiqul Islam
  • Patent number: 10680855
    Abstract: Systems and methods of assigning channel state information-reference symbol (CSI-RS) ports to user equipment are provided. In addition resource configurations for transmission of CSI-RS are provided, and methods of mapping CSI-RS sequences to such resources are provided.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: June 9, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Mohammadhadi Baligh, Keyvan Zarifi, Jianglei Ma, Kelvin Kar Kin Au
  • Patent number: 10674508
    Abstract: A notification regarding a transition of a User Equipment (UE) from a standby operating mode to an active operating mode is exchanged between a UE and a network element in a communication network. The notification could be an uplink notification that is transmitted by the UE to the network element in response to an operating mode transition criterion for the UE being met at the UE, or a downlink notification that is transmitted by the network element to the UE in response to an operating mode transition criterion for the UE being met at the network element. The UE transitions from the standby operating mode to the active operating mode in response to the operating mode transition criterion being satisfied. The transmitter of the notification, which could be the UE or the network element, could also perform grant-free transmission of data without first receiving a response to the notification.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: June 2, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Qinghai Zeng, Kelvin Kar Kin Au, Mohammadhadi Baligh, Jianglei Ma
  • Patent number: 10644777
    Abstract: A system and method for communicating channel state information reference signal (CSI-RS) in a communication network. A cell such as an eNodeB (eNB) or a transmit-receive-point (TRP) may transmit to a user equipment (UE) one or more synchronization signal (SS) blocks according to one or more beam directions available to the cell. Each beam direction may correspond to one or more antenna ports, and each SS block may correspond to an SS index. The cell may then transmit a CSI-RS signal configured according to the one or more antenna ports and the one or more SS blocks. In a different embodiment, the cell may select antenna ports of a neighbor cell for the CSI-RS signal based on a channel state measurement report of the neighbor cell received from the UE.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: May 5, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Mohammadhadi Baligh, Kelvin Kar Kin Au, Keyvan Zarifi
  • Patent number: 10645714
    Abstract: It is possible to reduce overhead when dynamically establishing an air interface configuration by communicating a modification instruction along with an index associated with a predefine air interface configuration. The modification instruction identifies a modification to one or more parameters of the predefined air interface configuration associated with the index. Together, the index and the modification indication specify a modified air interface configuration that is different than any of the candidate air interface configurations predefined for the network. The modification instruction allows networks to achieve similar degrees of flexibility while using substantially fewer predefined air interface configurations, which in turn permits the index associated with the selected air interface configuration to be signaled using fewer bits.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 5, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lu Rong, Kelvin Kar Kin Au, Jianglei Ma
  • Patent number: 10638478
    Abstract: Methods and systems relating to de-centralized communication resource sharing and access for mobile nodes, such as vehicles, in a vehicle to vehicle ad hoc network are provided. A method includes receiving, at a first node, information indicating a position of a second node in the network. The first node may claim a communication channel in the network based on a position of the first node relative to the position of the second node. The relative positions of the nodes may be based on the distance of each node to a reference location. The nodes may be in a first zone in a virtual grid in the network, and the claimed communication channels may be channels of the first zone. Channels from other zones may also be claimed by nodes in the first zone as secondary channels.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: April 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hosein Nikopour, Kelvin Kar Kin Au
  • Patent number: 10631297
    Abstract: Signal processing complexity in fifth generation (5G) networks can be reduced by communicating wireless signals over self-contained partitions of a carrier such that the wireless transmission communicated over each self-contained partition of the carrier includes all physical control channel signaling required to decode data carried in a physical data channel of the partition. The control signaling may include resource assignment within the partition, modulation and coding scheme indication, reference signal configuration and retransmission information. In some embodiments, an anchor partition of a carrier is used to communicate initial access information for self-contained partitions of the carrier. The initial access information may include center-frequencies, bandwidths, and/or air interface configurations of the self-contained partitions. The anchor partition may also carry load indications associated with the self-contained partitions.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: April 21, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianglei Ma, Lu Rong, Kelvin Kar Kin Au
  • Publication number: 20200119774
    Abstract: Embodiments are provided for uplink measurement based mechanism and control using user equipment (UE) centric sounding signals. The mechanism provides an alternative to DL-measurement dominated system control. Based on UL-measurements at TPs, the network obtains knowledge of users' channel and timing information, traffic, and interference, and is thus able to perform better control, including TP and UE clustering and optimization, and power control and link adaptation. In an embodiment method, a TP receives one-to-one mapping information indicating a plurality of UE IDs and a plurality of sounding channels assigned to the corresponding UE IDs. When the TP detects a sounding reference signal (SRS) from a UE, the TP is able to identify the UE using the detected SRS and the one-to-one mapping information. The TP then obtains measurement information for the identified UE, enabling better control and communications for uplink and downlink transmissions between multiple TPs and the UE.
    Type: Application
    Filed: December 11, 2019
    Publication date: April 16, 2020
    Inventors: Liqing Zhang, Jianglei Ma, Kelvin Kar Kin Au, Nimal Gamini Senarath
  • Publication number: 20200120473
    Abstract: Provisioning and communicating physical signals and channels in NR networks having a first subset of transmit and receive points that use a first cell ID and a second subset of transmit and receive points that use a second cell ID. Operations include transmitting from, and receiving from, a first transmit and receive point a first signal or channel wherein the first signal or channel is based on a first user equipment (UE) specific parameter assigned via the first subset of transmit and receive points and transmitting from, and receiving from, the first transmit and receive point the plurality of transmit and receive points a second signal or channel wherein the second signal or channel is based on a second UE specific parameter assigned via the second subset of transmit and receive points. A transmit and receive point and a UE for implementing the operations are also disclosed.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 16, 2020
    Inventors: Amine Maaref, Kelvin Kar Kin Au, Jianglei Ma
  • Patent number: 10601545
    Abstract: A method includes receiving, by a first device from a second device, a plurality of encoded messages on a plurality of transmission time intervals (TTIs), where the plurality of encoded messages are forward error correction (FEC) encoded, and where the FEC spans the plurality of encoded messages and decoding the plurality of encoded messages using FEC. The method also includes determining a plurality of decoding status messages in accordance with decoding the plurality of encoded messages and transmitting, by the first device to the second device, the plurality of decoding status messages less often than once every TTI.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: March 24, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Aaron James Callard, Alex Stephenne, Mohammadhadi Baligh, Kelvin Kar Kin Au