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).
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Publication number: 20240236976Abstract: A method for an access point to schedule obtaining frames from stations connected thereto is provided. Real-time applications provide frames and frame due dates to the stations. The frames and their due dates are stored in respective buffers of the stations. Each station identifies the earliest due date of all its buffered frames and provides the earliest due date to the access point. The access point orders the due dates and schedules the stations according to the order of the due dates. The access point then communicates with the stations according to the schedule and obtains the frames. A WLAN system implementing the method is also provided.Type: ApplicationFiled: October 19, 2022Publication date: July 11, 2024Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Osama ABOUL-MAGD, Jung Hoon SUH, Yan XIN, Kwok Shum AU
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Patent number: 12021594Abstract: The present disclosure provides methods and apparatus related to NDPA frame indication. An aspect of the disclosure provides a method. The method includes sending, to one or more stations (STAs), a request for channel state information (CSI). The request includes a null data packet announcement (NDPA) frame including a first field and a second field. The first field indicates presence of the second field, and the second field indicates a variant of the NDPA frame. The method further includes receiving, from the one or more STAs, a CSI feedback response based on the request. In some embodiments, the first field is one of a sounding dialog token field and indicates the presence of the second field via at least two bits. In some embodiments, the first field is a frame control field and indicates the second field via a 4-bit subtype subfield.Type: GrantFiled: September 30, 2021Date of Patent: June 25, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Michael Montemurro, Jung Hoon Suh, Osama Aboul-Magd, Stephen McCann, Yan Xin, Kwok Shum Au
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Publication number: 20240206014Abstract: Efficient and accurate sensing measurements and reporting with multiple responders in 60 GHz WLAN is accomplished by conducting the measurements and reporting in multiple sub-channels separated in a frequency domain, or in a space domain, or both. Measurements, via sensing PPDUs, can be transmitted in parallel in time by multiple devices. Messaging related to communicating reporting of sensing results can also be transmitted in parallel in time by multiple devices. This parallelization is facilitated by the use of the multiple sub-channels in frequency or spatial domain.Type: ApplicationFiled: December 19, 2022Publication date: June 20, 2024Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yan XIN, Osama ABOUL-MAGD, Jung Hoon SUH, Michael MONTEMURRO, Kwok Shum AU, Stephen MCCANN
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Publication number: 20240137931Abstract: A method for an access point to schedule obtaining frames from stations connected thereto is provided. Real-time applications provide frames and frame due dates to the stations. The frames and their due dates are stored in respective buffers of the stations. Each station identifies the earliest due date of all its buffered frames and provides the earliest due date to the access point. The access point orders the due dates and schedules the stations according to the order of the due dates. The access point then communicates with the stations according to the schedule and obtains the frames. A WLAN system implementing the method is also provided.Type: ApplicationFiled: October 18, 2022Publication date: April 25, 2024Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Osama ABOUL-MAGD, Jung Hoon SUH, Yan XIN, Kwok Shum AU
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Patent number: 11956236Abstract: Systems and methods for tracking the privacy policy of an electronic device in a network having a privacy policy server and an authentication server are provided. In one aspect a privacy policy server receives a connection request from the electronic device, queries an authentication server for the device's privacy policy acceptance state. If the device had not accepted the network's privacy policy, the privacy policy server sends a URL to the device so the device may accept or reject the policy. The authentication server locates a network session identifier representing the device's connection with the network and response to the policy server indicating the device's current privacy policy acceptance state if applicable. Advantageously, a network session identifier can track a device's privacy policy acceptance state when the device reconnects with the network. The systems and methods are applicable in wireless networks, such as 802.11.Type: GrantFiled: March 11, 2021Date of Patent: April 9, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Michael Montemurro, Stephen McCann, Sheng Sun, Kwok Shum Au
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Patent number: 11949480Abstract: Aspects of the disclosure provide for methods and systems for Sub-codebook based Trellis Coded Quantization for CSI Feedback. An aspect of the disclosure provides method executed by a receiver. The method includes receiving a signal from a transmitter, via a communication channel between the receiver and the transmitter. The method further includes estimating parameters associated with the channel based on the received signal. The method further includes obtaining phase information from the estimated parameters. The method further includes applying a trellis coded quantization (TCQ) scheme to the obtained phase information by mapping each sub-codebook index of a set of sub-codebook indices to output bits of each trellis branch making the distance between sub-codebooks maximally equal.Type: GrantFiled: May 4, 2021Date of Patent: April 2, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jung Hoon Suh, Yan Xin, Osama Aboul-Magd, Kwok Shum Au
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Publication number: 20240072863Abstract: A format for a Null Data Packet Announcement (NDPA) frame for Wi-Fi sensing is provided. The frame format is based on the ranging NDPA frame format. The sensing frame can indicate channel state information measurement parameters, for a preamble punctured EHT NDP PPDU, in the Common Info field of the frame. When there is insufficient space in the Common Info field, the puncturing patterns can be indicated in each station (STA) field of the frame. Alternatively, the sensing frame can include an additional Common Info field that includes the information defining the puncturing patterns. Also provided is a method that indicates partial bandwidth (BW) feedback when the BW of each STA is smaller than the BW of the EHT NDP PPDU. A method that indicates the BW of the sensing NDPA frame is also provided, as is a method for setting the signal field in the EHT NDP PPDU for a number of long training field repetition.Type: ApplicationFiled: July 27, 2023Publication date: February 29, 2024Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jung Hoon SUH, Yan XIN, Osama ABOUL-MAGD, Kwok Shum AU
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Patent number: 11910435Abstract: A procedure and frame structure for Wi-Fi sensing is described. An aspect of the disclosure provides a method of sensing. Such the method includes sending, by an initiating station (STA) to a plurality of responder STAs, a sensing request comprising a sensing announcement frame indicating identifiers (ID) of the plurality of responder STAs. Such a method further includes receiving, by the initiating STA from the plurality of responder STAs, one or more responses based on the sensing request. In some embodiments, the announcement frame further indicates resource unit assignments for receiving acknowledgements from the plurality of responder STAs. In some embodiments, the method further includes receiving, by the initiating STA from the plurality of responder STAs, the acknowledgements indicating a willingness to participate in the sensing procedure.Type: GrantFiled: February 17, 2023Date of Patent: February 20, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Osama Aboul-Magd, Yan Xin, Jung Hoon Suh, Kwok Shum Au
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Publication number: 20240049049Abstract: 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 initialize 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: ApplicationFiled: July 13, 2023Publication date: February 8, 2024Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yan XIN, Sheng SUN, Osama ABOUL-MAGD, Kwok Shum AU, Jung Hoon SUH
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Publication number: 20240039600Abstract: A computerized method performed by a first apparatus. The method has the steps of: normalizing real and imaginary parts of parameters of a channel between the first apparatus and a second apparatus to a first bit-size, and quantizing the normalized real and imaginary parts of the parameters to obtain channel state information (CSI) coefficients of a second bit-size for feeding back to the second apparatus.Type: ApplicationFiled: April 14, 2023Publication date: February 1, 2024Inventors: JUNG HOON SUH, Osama ABOUL-MAGD, Yan XIN, Kwok Shum AU
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Publication number: 20240040642Abstract: According to a first aspect of the disclosure, methods are discussed in which a station (STA) sends a message to an access point, for example an associated access point, about a change in multi-AP coordination parameters. A STA, which may be a mobile STA, can be in a better position than the APs themselves, for detecting changes in conditions which can affect the effectiveness, or even the desirability of the multi-AP coordination. Accordingly the STA can send a message reporting detected conditions related to multi-AP coordination. In some embodiments, such a message can request for initializing multi-AP coordination, such a message can be in response to a triggering event detected by the STA. In response to such a triggering event, the STA can analyze the STA's service needs, and send the message about a change in multi-AP coordination parameters. A second aspect of the disclosure provides an AP-to-AP negotiation process for multi-AP coordination.Type: ApplicationFiled: July 29, 2022Publication date: February 1, 2024Applicants: HUAWEI TECHNOLOGIES CANADA CO., LTD., THE UNIVERSITY OF WESTERN ONTARIOInventors: Wudan HAN, Xianbin WANG, Osama ABOUL-MAGD, Yan XIN, Jung Hoon SUH, Kwok Shum AU
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Patent number: 11856605Abstract: 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: GrantFiled: June 9, 2021Date of Patent: December 26, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Osama Aboul-Magd, Jung Hoon Suh, Yan Xin, Kwok Shum Au
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Publication number: 20230370125Abstract: The application relates to link adaptation for extremely high throughput (EHT) systems. Various approaches are provided to enable transmission of link adaptation parameters for single-user multiple input multiple output (SU-MIMO), and multi-user multiple input multiple output MU-MIMO. In some embodiments, two control IDs in the A-control subfield are used, one for SU-MIMO and one for MU-MIMO. These can both be reserved control IDs, or a combination of a reserved control ID and control ID 2 normally used for HE link adaptation. In some embodiments, a single control ID in the A-control subfield is used. This can be a reserved control ID or control ID 2 normally used for HE link adaptation.Type: ApplicationFiled: July 19, 2023Publication date: November 16, 2023Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: YAN XIN, JUNG HOON SUH, OSAMA ABOUL-MAGD, KWOK SHUM AU
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Patent number: 11792062Abstract: The disclosed systems and methods for wireless communication directed are towards (i) encoding data bits to be transmitted over a multiple resource unit (MRU) in a wireless local area network (WLAN), (ii) creating a group of the encoded data bits based on a predetermined criterion, (iii) parsing the encoded bits in the group based on a proportional ratio associated with the MRU, (iv) modulating the parsed encoded data bits to generate modulated encoded data symbols, (v) mapping the modulated encoded data symbols to data subcarriers to generate encoded data subcarriers, the data subcarriers being associated with respective resource units (RUs) of the MRU, (vi) duplicating the encoded data subcarriers within the respective RUs, (vii) shuffling the duplicate encoded data subcarriers across the respective RUs of the MRU, and (viii) transmitting the encoded data subcarriers, and the duplicate encoded data subcarriers over the MRU in the WLAN.Type: GrantFiled: May 28, 2021Date of Patent: October 17, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yan Xin, Jung Hoon Suh, Osama S. Aboul-Magd, Kwok Shum Au, Mohamed Adel Salem
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Publication number: 20230300658Abstract: There are provided methods and apparatus related to setting up sensing measurement instances and to allocating resource units (RUs) between sensing responders in a sensing measurement instance. There is provided a channel state information (CSI) feedback (FB) support subfield can be provided in a sensing measurement parameters field, which may be used to allow a device to indicate whether it can compute CSI FB information and feedback. There is further provided, RU allocation re-use across multiple phases of a sensing phase which may enable later trigger frames to omit RU allocation information. There are further provided responder-to-initiator (R2I) null data packets (NDPs) which include information indicative of the device transmitting the packet in a signal (SIG) field of the NDP.Type: ApplicationFiled: March 13, 2023Publication date: September 21, 2023Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jung Hoon SUH, Osama ABOUL-MAGD, Yan XIN, Kwok Shum AU
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Publication number: 20230300649Abstract: The present disclosure provides for methods and systems for improved channel information gathering mechanism. An aspect of the disclosure provides a method. The method includes sending, to one or more stations (STAs), a request for channel information. The channel information being related to one or more channels between an access point (AP) and the one or more STAs. The method further includes receiving, from the one or more (STA), one or more physical layer (PHY) protocol data units (PPDUs). The PPDUs includes channel feature information (CFI) associated with the one or more channels. In some embodiments, the request includes a beamforming report poll (BFRP) trigger frame having a user information field. The user information subfield indicating one or more thresholds associated with one or more parameters of the channel feature information.Type: ApplicationFiled: March 18, 2022Publication date: September 21, 2023Applicants: HUAWEI TECHNOLOGIES CANADA CO., LTD., The University of Western OntarioInventors: Jie MEI, Xianbin WANG, Yan XIN, Kwok Shum AU, Jung Hoon SUH, Osama ABOUL-MAGD
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Publication number: 20230300657Abstract: There is provided a method and apparatus associated with a sensing measurement report frame format. A method includes receiving, by an access point (AP) or a station (STA), a request for at least one sensing measurement report. The method also includes transmitting, by the AP or the STA, a sensing measurement report frame that includes a category field, a public action field, and at least one measurement set-up identifier field and at least one sensing measurement report element. The sensing management report frame can include a category field, a public action field, a dialog token field, a measurement set-up identifier field, and a sensing measurement report element.Type: ApplicationFiled: March 10, 2023Publication date: September 21, 2023Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jung Hoon SUH, Osama ABOUL-MAGD, Yan XIN, Kwok Shum AU
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Patent number: 11764836Abstract: The application relates to link adaptation for extremely high throughput (EHT) systems. Various approaches are provided to enable transmission of link adaptation parameters for single-user multiple input multiple output (SU-MIMO), and multi-user multiple input multiple output MU-MIMO. In some embodiments, two control IDs in the A-control subfield are used, one for SU-MIMO and one for MU-MIMO. These can both be reserved control IDs, or a combination of a reserved control ID and control ID 2 normally used for HE link adaptation. In some embodiments, a single control ID in the A-control subfield is used. This can be a reserved control ID or control ID 2 normally used for HE link adaptation.Type: GrantFiled: October 20, 2021Date of Patent: September 19, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yan Xin, Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
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Publication number: 20230284266Abstract: A procedure and frame structure for Wi-Fi sensing is described. An aspect of the disclosure provides a method of sensing. Such the method includes sending, by an initiating station (STA) to a plurality of responder STAs, a sensing request comprising a sensing announcement frame indicating identifiers (ID) of the plurality of responder STAs. Such a method further includes receiving, by the initiating STA from the plurality of responder STAs, one or more responses based on the sensing request. In some embodiments, the announcement frame further indicates resource unit assignments for receiving acknowledgements from the plurality of responder STAs. In some embodiments, the method further includes receiving, by the initiating STA from the plurality of responder STAs, the acknowledgements indicating a willingness to participate in the sensing procedure.Type: ApplicationFiled: February 17, 2023Publication date: September 7, 2023Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Osama ABOUL-MAGD, Yan XIN, Jung Hoon SUH, Kwok Shum AU
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Patent number: 11743766Abstract: 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 initialize 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: GrantFiled: April 27, 2022Date of Patent: August 29, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yan Xin, Sheng Sun, Osama Aboul-Magd, Kwok Shum Au, Jung Hoon Suh