公开(公告)号：US20220418022A1

公开(公告)日：2022-12-29

申请号：US17844570

申请日：2022-06-20

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Jinjing Jiang ,  Qi Wang ,  Su Khiong Yong ,  Tianyu Wu ,  Yong Liu

IPC: H04W76/15

Abstract: Methods, systems and apparatuses for performing a channel validation by an access point (AP) multi-link device (MLD) and non-AP MLD are described. An AP MLD may transmit information about multiple affiliated APs. A non-AP MLD and AP MLD may validate multiple links for communication.

公开(公告)号：US20220417809A1

公开(公告)日：2022-12-29

申请号：US17844514

申请日：2022-06-20

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Jinjing Jiang ,  Qi Wang ,  Su Khiong Yong ,  Tianyu Wu ,  Yong Liu

IPC: H04W36/06 ,  H04W72/04 ,  H04W76/15 ,  H04L5/00

Abstract: Methods, systems and apparatuses for performing a channel switch by an access point (AP) multi-link device (MLD) and non-AP MLD are described. An AP MLD may transmit information about parameters of an AP that will be implemented following an upcoming channel switch. The non-AP MLD may use the information to implement the channel switch.

公开(公告)号：US11363635B2

公开(公告)日：2022-06-14

申请号：US17161264

申请日：2021-01-28

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Jinjing Jiang ,  Lochan Verma ,  Qi Wang ,  Su Khiong Yong ,  Tianyu Wu ,  Yong Liu

IPC: H04W74/08 ,  H04W8/24 ,  H04W74/00 ,  H04L1/16

Abstract: Some embodiments include an apparatus, method, and computer program product for Extremely High Throughput (EHT) medium reservation. Some embodiments include a first station configured to exchange EHT-Request to Send (RTS) and/or EHT-Clear to Send (CTS) capabilities with a second station, and determine CTS response mode (e.g., rules) for the first station based at least on the RTS and CTS capabilities of the first and the second stations. Some embodiments include transmitting RTS frames and receiving CTS frames in the presence of punctured channels, implementing a flexible channel reservation scheme, reserving punctured bandwidths, and receiving CTS frames even when a primary channel is busy. Some embodiments include an RTS or an CTS frame that includes an EHT bandwidth puncture (BnP) signaling address and/or a modified scrambler seed that enable channel reservations for an EHT bandwidth.

公开(公告)号：US20220182184A1

公开(公告)日：2022-06-09

申请号：US17544781

申请日：2021-12-07

Applicant: Apple Inc.

Inventor： Qi Wang ,  Yong Liu ,  Jarkko Lauri Sakari Kneckt ,  Jinjing Jiang ,  Yoel Boger ,  Guoquing Li ,  Tianyu Wu ,  Su Khiong Yong

IPC: H04L1/16 ,  H04L1/18 ,  H04W72/12

Abstract: 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.

公开(公告)号：US20210281363A1

公开(公告)日：2021-09-09

申请号：US17194627

申请日：2021-03-08

Applicant: Apple Inc.

Inventor： Tianyu Wu ,  Yong Liu ,  Jinjing Jiang ,  Jerkko L. Knect ,  Lochan Verma ,  Qi Wang ,  Su Khiong Yong ,  Anuj Batra

IPC: H04L1/16 ,  H04L1/00 ,  H04L5/00

Abstract: 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.

公开(公告)号：US20210281357A1

公开(公告)日：2021-09-09

申请号：US17194782

申请日：2021-03-08

Applicant: Apple Inc.

Inventor： Lochan Verma ,  Yong Liu ,  Jarkko L. Kneckt ,  Qi Wang ,  Jinjing Jiang ,  Su Khiong Yong ,  Tianyu Wu

IPC: H04L1/00 ,  H04L5/00

Abstract: 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.

公开(公告)号：US10660085B2

公开(公告)日：2020-05-19

申请号：US15937365

申请日：2018-03-27

Applicant: Apple Inc.

Inventor： Mingguang Xu ,  Su Khiong Yong ,  Mithat C. Dogan ,  Rohit U. Nabar ,  Qi Wang ,  Kyle C. Brogle ,  Andrew J. Ringer

IPC: H04W72/04 ,  H04W64/00 ,  H04L25/02 ,  H04W84/12 ,  H04L5/00

Abstract: Communicating wireless devices collaborate and utilize waveforms to enable secure channel estimation. To protect against a repetitive replay attack, some embodiments include Single Carrier Physical Layer (SC-PHY) waveforms and/or interpolated OFDM waveforms that do not include a repeatable or predictable structure. The waveforms are transmitted in ranging packet structures that are compatible with legacy 802.11 technologies that do not utilize secure channel estimation. The ranging packets are received in combination with the information previously exchanged to enable the receiving wireless system to securely determine a channel estimate (e.g., determine a channel estimate without an interloper transmission that is not an authentic first arrival path in a multi-path channel between the wireless systems). Thus, one or both of the wireless systems can estimate the distance between them (or range). Devices utilizing legacy 802.11 technologies may receive the ranging packet structures and determine durations for deferring access to the channel.

公开(公告)号：US20250113295A1

公开(公告)日：2025-04-03

申请号：US18894822

申请日：2024-09-24

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Veerendra Boodannavar ,  Qi Wang ,  Oren Shani ,  Charles F. Dominguez ,  Debashis Dash ,  Yong Liu ,  Lochan Verma ,  Tianyu Wu ,  Neelakantan Nurani Krishnan ,  Ahmad Reza Hedayat

IPC: H04W48/20 ,  H04W48/16 ,  H04W84/12

Abstract: Methods, systems and apparatuses for non-access point (non-AP) and access point (AP) multi-link devices (MLDs) are described. A non-AP MLD can transmit, to an AP MLD, a query for information comprising at least one of one or more sets of parameters or identities associated with one or more target AP MLDs. The non-AP MLD can receive, from the AP MLD, a message comprising the information and select, based at least in part on the information, a target AP MLD of the one or more target AP MLDs. The non-AP MLD can transmit a roaming request to the target AP MLD and further receive a roaming response from the target AP MLD.

公开(公告)号：US12267766B2

公开(公告)日：2025-04-01

申请号：US17527873

申请日：2021-11-16

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Yong Liu ,  Su Khiong Yong ,  Jinjing Jiang ,  Tianyu Wu ,  Qi Wang

IPC: H04W4/00 ,  H04W12/106 ,  H04W48/16

Abstract: Methods for performing robust discovery of a new access point (AP) in AP MLD, robust link addition to an AP MLD association, AP beaconing modes when the AP is added or deleted to/from an AP MLD, and robust BSS transition management (BTM) signaling to steer a non-AP MLD to a best AP MLD and to most suitable APs, as well as privacy improvements for associated non-AP MLD.

公开(公告)号：US12250627B2

公开(公告)日：2025-03-11

申请号：US17683851

申请日：2022-03-01

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Christiaan A. Hartman ,  Guoqing Li ,  Jinjing Jiang ,  Qi Wang ,  Su Khiong Yong ,  Tianyu Wu ,  Yong Liu

IPC: H04W52/02 ,  H04W76/10 ,  H04W84/12

Abstract: This disclosure relates to methods for conducting multilink communications between a user equipment device (UE) and a wireless access point (AP) over a wireless local area network (WLAN). The UE establishes a connection with an access point through a WLAN, wherein the connection utilizes a plurality of links. The UE transmits an indication to the access point through a first link of the plurality of links, where the indication specifies one or more available links of the plurality of links that are available for the UE to receive downlink (DL) communications from the access point. The UE receives one or more DL communications from the access point through at least one of the one or more available links.