Patents by Inventor Kwok Shum Au

Kwok Shum 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).

  • Publication number: 20210083734
    Abstract: Methods and systems that can enable antenna selection (AS) and data bits in transmitted spatially modulated (SM) streams to be detected at a receiver using different detection methods. In example embodiments, encoding for an AS stream is done separately at a transmitter than encoding for data streams, enabling a receiver to use one type of detection for AS bits and a reduced complexity type of MIMO detection for the data bits.
    Type: Application
    Filed: November 27, 2020
    Publication date: March 18, 2021
    Inventors: Jung Hoon SUH, Osama ABOUL-MAGD, Kwok Shum AU
  • Patent number: 10951286
    Abstract: Methods and apparatuses for hybrid beamforming are described. The described methods and apparatuses related to hybrid beamforming for single user multiple-input multiple-output (SU MIMO) communications and for multi-user multiple-input single-output (MU MISO) communications. The radio frequency (RF) precoder and baseband precoder are determined such that the hybrid precoder has a minimum or near minimum chordal distance from an optimal precoder. Feedback information enables the transmitter to select columns from a set of discrete Fourier transform (DFT) columns to form the RF precoder matrix.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: March 16, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ahmed Wagdy Abdelwahab Shaban, Mohamed Oussama Damen, Yan Xin, Kwok Shum Au
  • Patent number: 10945157
    Abstract: A method for transmitting a frame includes generating an omni portion of the frame, the omni portion including a non-beamformed long training field and a signal field, the non-beamformed long training field including channel estimation information used to decode the signal field, the non-beamformed long training field configured to be transmitted through one of multiple antennas and multiple streams. The method also includes generating a multi-stream portion of the frame, the multi-stream portion including a data field and a multi-stream long training field, the multi-stream long training field including station-specific decoding information for station-specific data in the data field. The method further includes applying a beamforming indicator to the signal field of the omni portion, and transmitting the frame.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 9, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jung Hoon Suh, Yunbo Li, Kwok Shum Au, Osama Aboul-Magd, Sheng Sun
  • Patent number: 10945219
    Abstract: Methods and protocols are discussed to address IoT coexistence with existing WLAN devices and protocols. Some embodiments allow for the IoT devices to be located further from the Access Point than other devices, and provide higher power solutions to serve these long range devices. New IoT Frame structures are disclosed to allow for the above.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: March 9, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 10931490
    Abstract: Methods and systems for waking up a wireless receiving device having a wake-up receiver (WUR) circuit. A series of waveform coded symbols each represent a corresponding data bit from a wake-up frame, each of the waveform coded symbols comprising a guard interval followed by first and second sub-symbols of equal duration wherein the corresponding data bit is represented as a different relative energy distribution between the first and second sub-symbols.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: February 23, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au, Jia Jia
  • Patent number: 10904753
    Abstract: An embodiment method includes receiving, by an access point (AP), a first authentication request from a station (STA) that requests authentication of the STA, transmitting, by the AP, a second authentication request to a server that requests including extensible authentication protocol (EAP) authentication signaling to verify mutual possession of a shared key between the STA and the server, and receiving, by the AP, a first authentication response from the server in response to the second authentication request. The first authentication response includes an indication that authentication of the STA was successful. The method further includes transmitting, by the AP, a second authentication response to the STA, and receiving, by the AP, an association request that includes a message integrity code (MIC) from the STA.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: January 26, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Sheng Sun, Kwok Shum Au, Yunbo Li, Phillip Barber
  • Patent number: 10893524
    Abstract: Embodiments are provided for implementing a control function in a Wireless Local Area Network (WLAN) for allocation of resources to multiple stations (STAs) to enable Orthogonal Frequency Division Multiple Access (OFDMA) communications. An embodiment method includes determining a plurality of transmission resources for OFDMA communications of a plurality of STAs in the WLAN. The determination includes allocating a plurality of subcarriers to the STAs. The method further includes signaling the determined transmission resources to the STAs. The signaling of the transmission resources is piggybacked on at least one of data and management frames, such as in a sub-header of a MAC frame, or is an explicit signaling, such as in one or more dedicated fields of a traffic specification information element. The transmission resources for OFDMA communications allow simultaneous transmissions of the STAs in the WLAN.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: January 12, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Osama Aboul-Magd, Kwok Shum Au, Jung Hoon Suh
  • Patent number: 10892915
    Abstract: A method at a network node that is configured to simultaneously transmit and receive wireless RF signals, comprising: transmitting, from the network node, a downlink message, the downlink message having a preamble that includes channel estimation information for estimating a self-interference channel; monitoring at the network node, during an initial duration while transmitting the downlink message, for the channel estimation information, and estimating a self-interference channel based on received portions of the channel estimation information; and using the estimated self-interference channel to cancel self-interference while receiving an uplink message and simultaneously transmitting a remainder of the downlink message.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: January 12, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Osama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au
  • Publication number: 20200404500
    Abstract: An apparatus for wireless communications. The apparatus includes a network interface configured for wireless communication with one or more personal basic service set (PBSS) control points (PCPs)/access points (APs) serving in one BSS PCP/AP cluster (BPAC) basic service set (BSS). The processor is coupled to the network interface and configured to: transmit synchronization signals to one or more electronic devices (EDs) of the one BPAC BSS and to the one or more PCP/APs of the one BPAC BSS to synchronize transmissions within the one BPAC BSS.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Inventors: Sheng SUN, Yan XIN, Wen TONG, Kwok Shum AU, Osama ABOUL-MAGD
  • Patent number: 10873383
    Abstract: In some examples, a first wireless device includes a network interface capable of communicating using 16 spatial streams; and at least one processor configured to allocate at least one spatial stream of the 16 spatial streams to a plurality of wireless devices, such that no wireless device of the plurality of wireless devices is allocated more than 4 spatial streams, and send a control information element indicating the allocation of the at least one spatial stream to the plurality of wireless devices.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: December 22, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 10873373
    Abstract: Methods and systems that can enable antenna selection (AS) and data bits in transmitted spatially modulated (SM) streams to be detected at a receiver using different detection methods. In example embodiments, encoding for an AS stream is done separately at a transmitter than encoding for data streams, enabling a receiver to use one type of detection for AS bits and a reduced complexity type of MIMO detection for the data bits.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: December 22, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 10862637
    Abstract: In accordance with embodiments, methods and systems for data transmissions are disclosed. A station (STA) transmits an orthogonal frequency division multiplexing (OFDM) frame to an access point (AP). The OFDM frame comprises an OFDM symbol. The OFDM symbol comprises data tones and pilot tones. The total number of the data tones and the pilot tones in the OFDM symbol is divisible by 4. In some embodiments, the OFDM symbol may comprises 232 data tones, 8 pilot tones, 5 direct current (DC) tones, and 11 edge tones. The 232 data tones and 8 pilot tones of the OFDM symbol may be segmented to a set of 15 blocks for channel estimation between the AP and the STA.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: December 8, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jung Hoon Suh, Alireza Bayesteh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 10862713
    Abstract: A method at a network node that is configured to simultaneously transmit and receive wireless RF signals, comprising: transmitting, from the network node, a downlink message, the downlink message having a preamble that includes channel estimation information for estimating a self-interference channel; monitoring at the network node, during an initial duration while transmitting the downlink message, for the channel estimation information, and estimating a self-interference channel based on received portions of the channel estimation information; and using the estimated self-interference channel to cancel self-interference while receiving an uplink message and simultaneously transmitting a remainder of the downlink message.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: December 8, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Osama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au
  • Patent number: 10856210
    Abstract: A method and system for providing utilization information for a basic service set (BSS) in a wireless local area network system, performed by an access point, including generating and transmitting a BSS load element including a capable STA count field, a plurality of frequency and/or spatial stream underutilization fields, and a plurality of delta observable secondary channel utilization fields. The capable STA count field indicates a total number of STAs currently associated with the BSS. Each of the frequency and/or spatial stream underutilization fields indicates underutilized frequency and/or spatial stream domain resources on Orthogonal Frequency Division Multiple Access resource units for each channel, and each of the frequency and/or spatial stream underutilization fields is calculated based on RU size.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: December 1, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kwok Shum Au, Ming Gan, Xun Yang, Osama Aboul-Magd
  • Patent number: 10856326
    Abstract: Methods and systems for channel access in a BSS having two or more PCP/APs. A C-PCP/AP transmits at least a first management/extension frame, the management/extension frame including information for channel access by a STA. The C-PCP/AP receives, from the STA, at least a second management/extension frame. Based on information exchanged between the C-PCP/AP and the STA via at least the first and second management/extension frames, the STA is provided with channel access within the BSS by: the C-PCP/AP establishing a communication link for the C-PCP/AP to serve the STA; or the C-PCP/AP assigning a second PCP/AP in the BSS to serve the STA.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: December 1, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Mengyao Ma, Sheng Sun, Yan Xin, Kwok Shum Au
  • Publication number: 20200343948
    Abstract: Methods and apparatuses for hybrid beamforming are described. The described methods and apparatuses related to hybrid beamforming for single user multiple-input multiple-output (SU MIMO) communications and for multi-user multiple-input single-output (MU MISO) communications. The radio frequency (RF) precoder and baseband precoder are determined such that the hybrid precoder has a minimum or near minimum chordal distance from an optimal precoder. Feedback information enables the transmitter to select columns from a set of discrete Fourier transform (DFT) columns to form the RF precoder matrix.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 29, 2020
    Inventors: Ahmed Wagdy Abdelwahab SHABAN, Mohamed Oussama DAMEN, Yan XIN, Kwok Shum AU
  • Patent number: 10790948
    Abstract: An apparatus for wireless communications. The apparatus includes a network interface configured for wireless communication with one or more personal basic service set (PBSS) control points (PCPs)/access points (APs) within a basic service set (BSS) PCP/AP cluster (BPAC) BSS. A processor coupled to the network interface is configured to coordinate beam coverage functions of the one or more member PCP/APs within the BPAC BSS. The processor is also configured to schedule communications within the BPAC BSS. The processor is also configured to provide a function of a virtual PCP/AP, and/or instruct another PCP/AP within the BPAC BSS to provide a function of the virtual PCP/AP, the virtual PCP/AP providing a representation of all PCP/AP s in the BPAC BSS as the single virtual PCP/AP.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: September 29, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Sheng Sun, Yan Xin, Wen Tong, Kwok Shum Au, Osama Aboul-Magd
  • Publication number: 20200287612
    Abstract: In some examples, a first wireless device includes a network interface capable of communicating using 16 spatial streams; and at least one processor configured to allocate at least one spatial stream of the 16 spatial streams to a plurality of wireless devices, such that no wireless device of the plurality of wireless devices is allocated more than 4 spatial streams, and send a control information element indicating the allocation of the at least one spatial stream to the plurality of wireless devices.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 10, 2020
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Publication number: 20200281008
    Abstract: In some examples, an access point (AP) includes a wireless interface, and at least one processor configured to send, to the first wireless device through the wireless interface, a preemption indication to cause the first wireless device to pause data transmission over a wireless channel, and send, to the first wireless device, a resume indication to cause the first wireless device to resume the data transmission over the wireless channel.
    Type: Application
    Filed: February 28, 2019
    Publication date: September 3, 2020
    Inventors: Osama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au
  • Patent number: 10728853
    Abstract: Methods and systems for waking up a wireless receiving device having a wake-up radio (WUR) circuit. A low-power wake-up signal is transmitted, comprising a wake-up frame (WUF) including having a portion that is subjected to spectrum spreading and transmitted using a single carrier. The wake-up signal is processed by the receiving using non-coherent detection.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au, Yan Xin