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).

  • Patent number: 11395336
    Abstract: Aspects of the present application provide mechanisms for minimizing latency in real time application (RTA) traffic on wireless LANs. A wireless electronic device identifies real time application network packets in the Application layer, gives them a novel MPDU frame type and subtype, and maps them into a high priority access category such as AC_VO. Upon receiving a TXOP, the device preferentially transmits RTA frames before frames mapped to the access category awarded the TXOP. Additional aspects allow for pre-emptive priority transmission of RTA frames.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: July 19, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Osama Aboul-Magd, Sheng Sun, Yan Xin, Jung Hoon Suh, Kwok Shum Au
  • Patent number: 11342969
    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: November 27, 2020
    Date of Patent: May 24, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 11330465
    Abstract: A method, apparatus and system for transmitting control information in a header of a physical protocol data unit (PPDU), such as an IEEE 802.11 compliant PPDU. Embodiments include indicating control features in an EDMG PPDU for Wireless LAN communications. The method and system may include overloading at least one bit of a Scrambler Initialization Field in the PPDU header (e.g. the PHY header) to convey control information, as well as to be used to initialise the scrambler shift register. The same header bits are thus used for both purposes. Examples of control information include a primary channel, channel width or MIMO configuration to be used in further communication.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: May 10, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yan Xin, Sheng Sun, Osama Aboul-Magd, Kwok Shum Au, Jung Hoon Suh
  • Patent number: 11323878
    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: Grant
    Filed: September 3, 2020
    Date of Patent: May 3, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Sheng Sun, Yan Xin, Wen Tong, Kwok Shum Au, Osama Aboul-Magd
  • Patent number: 11316578
    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: December 15, 2020
    Date of Patent: April 26, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 11271691
    Abstract: Methods and systems that enable payload data to be spread over a number of a plurality of sub-carriers for wireless transmissions between Access Points (AP) and stations (STA) in a WLAN. The AP receives each STA's status information, and controls an amount of spreading of the payload data that can flexibly and variably takes into account the desired amount of peak power consumption, the required data rate, and the channel conditions. Based on these factors, the AP determines a number of sub-carriers for each STA that will be used to carry the spread payload data. Example embodiments can address high power peak consumption, data rate inflexibility and inefficient spectrum communication as found in conventional wireless systems.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: March 8, 2022
    Assignee: Huawei Technologies Canada Co. Ltd.
    Inventors: Hao Li, Xianbin Wang, Kwok Shum Au, Osama Aboul-Magd, Jung Hoon Suh
  • Publication number: 20210392686
    Abstract: A first wireless device communicates using a frequency bandwidth with multiple wireless devices, and is configured to concurrently transmit trigger frame messages for each of the multiple wireless devices within respective trigger frame frequency bands of the frequency bandwidth to trigger the multiple wireless devices to concurrently transmit respective data units to the first wireless devices within respective frequency segments of the frequency bandwidth.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 16, 2021
    Inventors: Osama ABOUL-MAGD, Jung Hoon SUH, Yan XIN, Kwok Shum AU
  • Publication number: 20210377910
    Abstract: In some examples, a first wireless device includes a network interface to communicate over up to 16 spatial streams in a wireless network with a plurality of wireless devices, and at least one processor configured to send a control information element that specifies, for each of a plurality of the wireless devices, a respective allocation of a minimum of two to a maximum of four spatial streams from the 16 spatial streams.
    Type: Application
    Filed: May 31, 2021
    Publication date: December 2, 2021
    Inventors: Jung Hoon SUH, Osama ABOUL-MAGD, Yan XIN, Kwok Shum AU
  • Patent number: 11184107
    Abstract: In some examples, a wireless device includes a network interface to communicate over a wireless network, at least one processor configured to send a capabilities information element comprising an indicator to indicate support by the first wireless device for semi-orthogonal multiple access (SOMA) communications over the wireless network.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: November 23, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Osama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au
  • Publication number: 20210360622
    Abstract: Receiving, at a receiver, a wake-up signal over a wireless communications channel, the wake-up signal including a multiband wake-up-radio (WUR) data unit that includes a plurality of WUR frames, each WUR frame occupying a respective predefined bandwidth within an overall bandwidth of the WUR data unit; filtering a selected WUR frame from the plurality of WUR frames according to the predefined bandwidth occupied by the selected WUR frame; and recovering a set of bits from the selected WUR frame by assigning a bit value to each of a plurality of waveform coded symbols included in the selected WUR frame based on a power distribution within each of the waveform coded symbols.
    Type: Application
    Filed: July 30, 2021
    Publication date: November 18, 2021
    Inventors: Jung Hoon SUH, Osama ABOUL-MAGD, Kwok Shum AU
  • Publication number: 20210336719
    Abstract: Methods and devices are disclosed for transmitting data, including segmenting a group of information bits into a set of information blocks that each include a respective plurality of the information bits; encoding, using low density parity check (LDPC) encoding, each of the information blocks to generate corresponding codewords; transmitting the codewords to a destination station; receiving a feedback message indicating that at least one of the codewords has not been successfully decoded by the destination station; interleaving the information bits of the information block that corresponds to the at least one of the codewords; encoding, using low density parity check (LDPC) encoding, the interleaved information bits to generate an interleaved codeword; and transmitting the interleaved codeword to the destination station.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Yan XIN, Wei LIN, Kwok Shum AU
  • Publication number: 20210289552
    Abstract: Aspects of the present application provide mechanisms for minimizing latency in real time application (RTA) traffic on wireless LANs. A wireless electronic device identifies real time application network packets in the Application layer, gives them a novel MPDU frame type and subtype, and maps them into a high priority access category such as AC_VO. Upon receiving a TXOP, the device preferentially transmits RTA frames before frames mapped to the access category awarded the TXOP. Additional aspects allow for pre-emptive priority transmission of RTA frames.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 16, 2021
    Inventors: Osama ABOUL-MAGD, Sheng SUN, Yan XIN, Jung Hoon SUH, Kwok Shum AU
  • Patent number: 11115239
    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: September 7, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Osama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au
  • Patent number: 11109395
    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: Grant
    Filed: February 28, 2019
    Date of Patent: August 31, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Osama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au
  • Patent number: 11082181
    Abstract: A method for operating a communications device adapted for orthogonal frequency division multiple access (OFDMA) wireless local area network (WLAN) communications includes generating an OFDMA preamble comprising an OFDMA signal (SIG) field including an indication of an allocation of an OFDMA resource to a station, and transmitting the OFDMA preamble in a frame.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: August 3, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Osama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au, Sheng Sun
  • Patent number: 11082976
    Abstract: Methods and systems for waking up a wireless receiving stations having wake-up radio (WUR) circuits. A method of providing a wake-up signal in a communications channel for a plurality of receiving stations, including generating at least a first series and a second series of waveform coded symbols, the first series being incorporated into a first wake-up-radio (WUR) frame that is intended for a first receiving station and has a first predefined bandwidth, the second series being incorporated into a second WUR frame that is intended for a second receiving station and has a second predefined bandwidth; combining the first and second WUR frames into a multiband WUR data unit having a bandwidth that is greater than a sum of the predefined bandwidths of the first and second WUR frames; and transmitting a wake-up signal including the multiband WUR data unit in the communications channel.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: August 3, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 11012202
    Abstract: Embodiments are provided for WLAN Orthogonal Frequency Division Multiple Access (OFDMA) design of subcarrier groups and corresponding frame format. An embodiment method includes grouping a plurality of subcarriers for OFDMA transmissions into a plurality of subcarrier groups in accordance with a pre-defined grouping structure for subcarriers. The method further includes allocating the subcarrier groups to a plurality of corresponding users, and signaling, to the users, a map of the subcarrier groups to the corresponding users. According to the pre-defined grouping structure, each one of the subcarrier groups includes a plurality of consecutive subcarriers, a plurality of non-consecutive subcarriers, or a combination of consecutive and non-consecutive subcarriers according to a deterministic structure.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: May 18, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Osama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au
  • Publication number: 20210099220
    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: December 15, 2020
    Publication date: April 1, 2021
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 10966084
    Abstract: System and method using distance bounding to provide security in fine timing measurement (FTM) communications including authenticating a prover device at a verifier device, including: transmitting from a verifier device, through the wireless interface, a sequence of challenge bits for a prover device, each challenge bit being transmitted in a respective FTM frame; receiving, at the verifier device, FTM acknowledgment frames; determining, for at least some of the received FTM acknowledgement frames, respective round trip time (RTT) measurements; determining, for at least some of the received FTM acknowledgement frames, whether the included response bit matches a predicted response bit; and authenticating the prover device based on the determined RTT measurements and the determined response bit matches.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: March 30, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Sheng Sun, Kwok Shum Au
  • Patent number: 10966102
    Abstract: Embodiments are provided for enabling a coordinated beamforming (CB) mechanism in WLAN scenarios. In an embodiment, an AP sends a Feedback Request (FBR) frame to each one of the STAs in the OBSSs. The OBSSs comprise the STAs and a plurality of APs including the AP. The AP then receives a feedback frame from each STA of the STAs that participate in the CB transmission. The feedback frame includes channel state information (CSI) of the STA. The CSI enables the sending AP of performing CB on downlink. In an embodiment, the AP receives an initiate CB frame from a second AP initiating a CB transmission, and then sends an ACK frame to the second AP before sending the FBR frame to each one of the STAs. The AP starts the CB transmission with each one of the other APs that participate in the CB transmission.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: March 30, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Osama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au