Patents by Inventor Su-Khiong Yong
Su-Khiong Yong 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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Patent number: 11784746Abstract: An electronic device (such as an access point) that receives one or more block acknowledgments is described. This electronic device may transmit an extremely high-throughput (EHT) physical layer convergence protocol (PLCP) protocol data unit (PPDU) to a recipient electronic device, where the EHT PPDU is transmitted in multiple non-contiguous sub-bands that are separated by a punctured sub-band. Moreover, the electronic may receive the one or more block acknowledgments from the recipient electronic device, where the one or more block acknowledgments exclude the punctured sub-band. Note that the EHT PPDU may exclude transmitted energy in the punctured sub-band. Moreover, the punctured sub-band may have a bandwidth of at least 20 MHz and may be different from a primary sub-band.Type: GrantFiled: March 8, 2021Date of Patent: October 10, 2023Assignee: Apple Inc.Inventors: Lochan Verma, Yong Liu, Jarkko L. Kneckt, Qi Wang, Jinjing Jiang, Su Khiong Yong, Tianyu Wu
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Publication number: 20230319688Abstract: Embodiments are disclosed for privacy enhancement (PE) beacon frames. A PE station (STA) can receive a PE beacon frame comprising a media access control (MAC) header that includes a first random identifier (ID) and a first checksum ID, determine that configured beacon parameters are satisfied, and then receive the PE beacon frame. When the first random ID and the first checksum ID correspond to an affiliated PE access point (AP) of a PE AP multilink device (MLD), to identify the PE AP MLD the PE STA can determine a checksum value using a AP MLD ID of the PE AP MLD and the first random ID, and based on a comparison of the determined checksum value with the first checksum ID, identify the PE AP MLD. In some embodiments, a location of a change sequence number adjacent to the MAC header enables early termination of the PE beacon frame reception.Type: ApplicationFiled: February 22, 2023Publication date: October 5, 2023Applicant: Apple Inc.Inventors: Jarkko L. KNECKT, Yong LIU, Charles F. DOMINGUEZ, Daniel R. BORGES, Debashis DASH, Elliott S. BRIGGS, Sidharth R. THAKUR, Su Khiong YONG
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Publication number: 20230319722Abstract: Methods, systems and apparatuses for managing enhanced multi-link single radio operation by an access point (AP) multi-link device (MLD) and non-AP MLD are described. A non-AP MLD may exchange parameters with an AP MLD. The non-AP MLD may request suspension of a multi-link single radio operation.Type: ApplicationFiled: March 22, 2023Publication date: October 5, 2023Inventors: Qi Wang, Yong Liu, Jarkko L. Kneckt, Yoel Boger, Oren Shani, Jinjing Jiang, Tianyu Wu, Su Khiong Yong
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Patent number: 11777656Abstract: Embodiments may relate to group addressed frame delivery over multi-link systems. Systems and methods are configured for identifying, by an access point (AP) multilink device (MLD) in a wireless network, a first sequence number space (SNS) that is to be used by the AP MLD to transmit data to a non-AP MLD over a first communications link and a second communications link, wherein frames with identical data that are transmitted over the first and second communications links will have an identical first SN based on the first SNS; identifying, by the MLD in the wireless network, the first SN based on the first SNS; and transmitting, by the AP MLD in the wireless network, a frame that includes the data to the non-AP MLD based on the first SN.Type: GrantFiled: December 7, 2021Date of Patent: October 3, 2023Assignee: Apple Inc.Inventors: Qi Wang, Yong Liu, Jarkko Lauri Sakari Kneckt, Jinjing Jiang, Yoel Boger, Guoquing Li, Tianyu Wu, Su Khiong Yong
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Patent number: 11765577Abstract: Disclosed herein are system, method, and computer program product embodiments for identity obscuration of a station (STA) connected to a wireless network to prevent the tracking of the STA. Embodiments include a STA configured to establish a security association with an access point (AP) based on an original long term identity for the station and an identity of the AP. The STA can transmit a new long term identity for the STA to the AP based on the security association. The STA can then transmit a request frame to change the original short term identity assigned to the STA to the AP. The STA can receive a response frame from the AP. The response frame can include a new short term identity assigned to the station by the AP. The STA can then map its new long term identity to its new short term identity assigned by the AP.Type: GrantFiled: May 29, 2020Date of Patent: September 19, 2023Assignee: Apple Inc.Inventors: Yong Liu, Christiaan A. Hartman, Tianyu Wu, Qi Wang, Jarkko L. Kneckt, Jinjing Jiang, Su Khiong Yong, Guoqing Li
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Patent number: 11737018Abstract: Some aspects of this disclosure include apparatuses and methods for implementing a hibernation mode for multi-link wireless communication networks such as a wireless local area network (WLAN). For example, some aspects relate to a multi-link device (MLD) including a first station (STA) associated with a first link of a wireless network and configured to communicate with a second MLD over the first link. The MLD also includes a second STA associated with a second link of the wireless network. The second STA is in a hibernation mode. The MLD also includes one or more processors communicatively coupled to the first and second STAs and configured to control operations of the first and second STAs.Type: GrantFiled: May 19, 2021Date of Patent: August 22, 2023Assignee: Apple Inc.Inventors: Yong Liu, Su Khiong Yong, Qi Wang, Tianyu Wu, Lochan Verma, Jinjing Jiang, Jarkko L. Kneckt
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Publication number: 20230262805Abstract: Embodiments are disclosed for triggered multi-link (ML) access coordination. A station (STA) ML device (MLD) can establish a preferred triggering link (PTL) with an access point (AP) MLD where the PTL is the preferred link for receiving triggering frames. The STA MLD can transmit uplink (UL) frames via the PTL in response to a trigger frame. Subsequently, the STA MLD can determine that the PTL is busy, and transmit enhanced distributed channel access (EDCA) UL frames on a non-PTL link. In a power save mode, the STA MLD can use the PTL to exchange UL and downlink (DL) frames. Multiple PTLs can be established supporting concurrent trigger frames, and different ranges of traffic IDs (TIDs) can be used for each PTL. The STA MLD can utilize AP MLD link pair information to receive a DL retransmission corresponding to one TID via both links of the AP MLD link pair.Type: ApplicationFiled: December 12, 2022Publication date: August 17, 2023Applicant: Apple Inc.Inventors: Jarkko L. KNECKT, Jinjing JIANG, Noam GINSBURG, Qi WANG, Su Khiong YONG, Yoel BOGER, Yong LIU
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Publication number: 20230262807Abstract: Methods, systems and apparatuses for managing load of various traffic flows and various links by an access point (AP) multi-link device (MLD) and non-AP MLD are described. An AP MLD may determine a mapping and a flexible usage policy. The AP MLD may transmit an indication of the flexible usage policy. A non-AP MLD may transmit data to the AP MLD according to the flexible usage policy.Type: ApplicationFiled: February 6, 2023Publication date: August 17, 2023Inventors: Jinjing Jiang, Jarkko L. Kneckt, Qi Wang, Yong Liu, Su Khiong Yong, Tianyu Wu
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Publication number: 20230254732Abstract: This disclosure relates to methods for multi-link device load signaling and use in scanning and congestion control in a wireless local area network (WLAN). A wireless device may be configured to operate as a multi-link device access point to provide multiple basic service sets. The wireless device may provide multi-link device load information associated with one or more basic service sets provided by the multi-link device access point. The multi-link device load information may include at least an indication of a number of multi-link capable wireless devices associated with the basic service set(s) provided by the multi-link device access point.Type: ApplicationFiled: February 6, 2023Publication date: August 10, 2023Inventors: Jarkko L. Kneckt, Yong Liu, Su Khiong Yong
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Publication number: 20230246743Abstract: An electronic device (such as an access point) is described. This electronic device transmits an orthogonal frequency division multiple access (OFDMA) frame to a recipient electronic device (such as a client or a station). The OFDMA frame includes multiple predefined resource units (RUs) allocated to the recipient electronic device in a set of predefined RUs having associated frequency bandwidths. Moreover, the multiple predefined RUs include two or more first predefined RUs having a first number of tones less than a predefined amount, or two or more second predefined RUs having a second number of tones greater than or equal to the predefined amount. For example, the predefined amount may include 242 tones. Note that the multiple predefined RUs may have the same or different numbers of tones. Moreover, the electronic may receive an acknowledgment or a block acknowledgment from the recipient electronic device.Type: ApplicationFiled: April 10, 2023Publication date: August 3, 2023Inventors: Tianyu Wu, Yong Liu, Jinjing Jiang, Jarkko L. Kneckt, Lochan Verma, Qi Wang, Su Khiong Yong, Anuj Batra
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Publication number: 20230247698Abstract: Methods, systems and apparatuses for negotiating mapping between traffic flows and different links by an access point (AP) multi-link device (MLD) and non-AP MLD are described. An AP MLD may transmit an initial request for a first limited mapping. A non-AP MLD may change to the first limited mapping. The non-AP MLD may register one or more high priority traffic flows and may change to a second mapping accommodating the high priority traffic flows on at least one additional link. The non-AP MLD and AP MLD may additionally exchange second and final mapping negotiation messages.Type: ApplicationFiled: September 7, 2022Publication date: August 3, 2023Inventors: Yong Liu, Jarkko L. Kneckt, Su Khiong Yong, Qi Wang, Jinjing Jiang
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Publication number: 20230247474Abstract: Methods, systems and apparatuses for negotiating mapping between traffic flows and different links by an access point (AP) multi-link device (MLD) and non-AP MLD are described. An AP MLD may transmit an initial request for a first limited mapping. A non-AP MLD may request to add at least one additional link for at least one traffic flow. The non-AP MLD and AP MLD may exchange various mapping negotiation messages.Type: ApplicationFiled: September 7, 2022Publication date: August 3, 2023Inventors: Yong Liu, Jarkko L. Kneckt, Su Khiong Yong, Qi Wang, Jinjing Jiang
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Publication number: 20230232218Abstract: Embodiments are disclosed for encrypting media access control (MAC) Header fields for Wireless LAN (WLAN) privacy enhancement. For example, a transceiver of a station (STA) or an access point (AP) can set a real time Media Access Control (MAC) header bit in a payload of an aggregated MAC Protocol Data Unit (A-MPDU) subframe to an actual value of a power management (PM) field of a MAC header of the A-MPDU subframe. The transceiver can encrypt the payload, set the PM field to an over the air (OTA) PM value, and transmit the A-MPDU subframe over the air. The OTA PM value can include all zeros, a predetermined value, or a randomized value The transceiver can also set static MAC header bits in the payload of the A-MPDU subframe to corresponding actual values of an aggregated MAC service data unit (A-MSDU) present field of the A-MPDU subframe.Type: ApplicationFiled: October 14, 2022Publication date: July 20, 2023Applicant: Apple Inc.Inventors: Jarkko L. KNECKT, Charles F. DOMINGUEZ, Daniel R. BORGES, Debashis DASH, Elliot S. BRIGGS, Sidharth R. THAKUR, Su Khiong YONG, Yong LIU
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Patent number: 11700658Abstract: A first multilink device (MLD) is configured to communicate with a second MLD using at least two communication links. The first MLD selects a first link of the at least two communication links for communications between the first MLD and the second MLD, detects that the first link is unavailable for communications, switches a radio of the first MLD to a second link of the at least two communication links, transmits an alert to the second MLD regarding the switching from the first one of the at least two communication links to the second one of the at least two communication links and communicates with the second MLD via the second link.Type: GrantFiled: March 8, 2021Date of Patent: July 11, 2023Assignee: Apple Inc.Inventors: Yong Liu, Jarkko L. Kneckt, Jinjing Jiang, Lochan Verma, Qi Wang, Su Khiong Yong, Tianyu Wu
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Publication number: 20230188264Abstract: Some embodiments of this disclosure include apparatuses and methods for implementing block acknowledgment (BA) operations for multi-link wireless communication networks. For example some embodiments relate to an electronic device including a transceiver and one or more processors communicatively coupled to the transceiver. The one or more processors transmit, using the transceiver and to a second electronic device, a first set of one or more frames on a first link and a second set of one or more frames on a second link. The one or more processors receive, using the transceiver and from the second electronic device, a first block acknowledgment (BA) frame on the first link and a second BA frame on the second link. The one or more processors further determine, based on received first BA frame and the second BA frame, a failed or missing frame of the first set of one or more frames transmitted on the first link.Type: ApplicationFiled: February 10, 2023Publication date: June 15, 2023Applicant: Apple Inc.Inventors: Jarkko L. KNECKT, Jinjing JIANG, Su Khiong YONG, Tianyu WU, Yong LIU
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Publication number: 20230147562Abstract: Systems, methods, and mechanisms for a privacy enhanced basic service set (BSS), including privacy enhancements for both access points and wireless stations as well as privacy enchantments for authentication, association, and discovery operations. Further, the systems, methods, and mechanisms disclosed may continue to support legacy wireless stations and are thus, backward compatible. A station may communicate with a legacy BSS of a wireless network to transition to a PE BSS of the wireless network. The station may receive, from the PE BSS of the wireless network, an encrypted beacon, wherein the encrypted beacon is decoded based on information received from the legacy BSS and perform, with the PE BSS of the wireless network, an encrypted handshake procedure to authenticate and associate with the PE BSS of the wireless network.Type: ApplicationFiled: September 21, 2022Publication date: May 11, 2023Inventors: Jarkko L Kneckt, Charles F. Dominguez, Daniel R. Borges, Debashis Dash, Elliot S. Briggs, Sidharth R. Thakur, Su Khiong Yong, Yong Liu
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Publication number: 20230144897Abstract: Systems, methods, and mechanisms for a privacy enhanced basic service set (BSS), including privacy enhancements for both access points and wireless stations as well as privacy enchantments for authentication, association, and discovery operations. Further, the systems, methods, and mechanisms disclosed may continue to support legacy wireless stations and are thus, backward compatible. A non-associated PE station may receive, from a PE access point, one or more discovery beacons advertising PE BSSs hosted by the PE access point and transmit, to the PE access point, a request to setup pre-association security protection. The non-associated PE station may, upon setup of pre-association security protection, transmit, to the PE access point, a protected request frame and receive, from the PE access point, a protected response that includes PE access point parameters.Type: ApplicationFiled: September 21, 2022Publication date: May 11, 2023Inventors: Jarkko L Kneckt, Charles F. Dominguez, Daniel R. Borges, Debashis Dash, Elliot S. Briggs, Sidharth R. Thakur, Su Khiong Yong, Yong Liu
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Patent number: 11647450Abstract: An electronic device may transmit beacons associated with multiple access points that are cohosted by the electronic device, and that provide concurrent links in different bands of frequencies. The electronic device may include an access-point multi-link device (AP MLD). Moreover, the beacons may include: a basic service set identifier (BSSID) associated with the access points in the AP MLD, a service set identifier (SSID) associated with the access points in the AP MLD, and a MLD media access control (MAC) address associated with the access points in the AP MLD. Furthermore, a given beacon may be associated with a given access point and may include: information specifying a channel of a given link, a reduced neighbor report (RNR) providing information about at least the access points in the AP MLD, and a field that indicates when the given access point is included in the AP MLD.Type: GrantFiled: May 28, 2021Date of Patent: May 9, 2023Assignee: Apple Inc.Inventors: Jarkko L. Kneckt, Jinjing Jiang, Lochan Verma, Qi Wang, Su Khiong Yong, Tianyu Wu, Yong Liu
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Patent number: 11641254Abstract: An electronic device (such as an access point) is described. This electronic device transmits an orthogonal frequency division multiple access (OFDMA) frame to a recipient electronic device (such as a client or a station). The OFDMA frame includes multiple predefined resource units (RUs) allocated to the recipient electronic device in a set of predefined RUs having associated frequency bandwidths. Moreover, the multiple predefined RUs include two or more first predefined RUs having a first number of tones less than a predefined amount, or two or more second predefined RUs having a second number of tones greater than or equal to the predefined amount. For example, the predefined amount may include 242 tones. Note that the multiple predefined RUs may have the same or different numbers of tones. Moreover, the electronic may receive an acknowledgment or a block acknowledgment from the recipient electronic device.Type: GrantFiled: March 8, 2021Date of Patent: May 2, 2023Assignee: Apple Inc.Inventors: Tianyu Wu, Yong Liu, Jinjing Jiang, Jarkko L. Kneckt, Lochan Verma, Qi Wang, Su Khiong Yong, Anuj Batra
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Publication number: 20230117751Abstract: An electronic device that communicates frames is described. During operation, the electronic device may transmit the frames addressed to a recipient electronic device and associated with multiple links between the electronic device and the recipient electronic device. Then, the electronic device may receive block acknowledgments for at least a subset of the frames, where a given block acknowledgment is associated with the recipient electronic device and indicates received frames on a given link in the links. Moreover, the electronic device may control an amount of traffic conveyed on the links based at least in part on the block acknowledgments. Next, the electronic device may store a remainder of the frames based at least in part on the block acknowledgments, where the frames include the subset of the frames and the remainder of the frames. Note that the frames may have a common traffic identifier.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Inventors: Jarkko L. Kneckt, Jinjing Jiang, Qi Wang, Su Khiong Yong, Tianyu Wu, Yong Liu