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：US11219078B2

公开(公告)日：2022-01-04

申请号：US16921276

申请日：2020-07-06

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Gaurav Jain ,  Yong Liu ,  Jinjing Jiang ,  Tianyu Wu ,  Su Khiong Yong ,  Guoqing Li ,  Charles F. Dominguez

IPC: H04W76/15 ,  H04W76/11 ,  H04W12/0471 ,  H04W48/16 ,  H04W80/02 ,  H04W84/12

Abstract: Some embodiments include utilizing a multilink media access control (MAC) address structure to support multilink devices (MLDs) that can operate concurrently in more than one link such as extremely high throughput (EHT) access points (APs) and EHT stations (STA), where the multilink MAC address structure is compatible with legacy devices. An EHT AP can utilize a multilink basic service set (BSS) identification (BSSID) MAC address to communicate with an EHT STA identified by a multilink MAC address. Values of the multilink BSSID and the multilink MAC address of the EHT STA are independent of which of the multiple links are used in the communication. In addition, to utilizing a multilink BSSID, the EHT AP can also support unique link-specific MAC addresses to concurrently support legacy and MLD stations. The EHT STA can also utilize unique link-specific MAC addresses that can be different than the EHT AP's link-specific MAC addresses.

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：US20210266108A1

公开(公告)日：2021-08-26

申请号：US17183170

申请日：2021-02-23

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Jinjing Jiang ,  Yong Liu ,  Guoqing Li ,  Tianyu Wu

IPC: H04L1/18

Abstract: An electronic device (such as an access point) that performs a remedial action is described. This electronic device may transmit, using a first radio in the electronic device, a physical layer convergence protocol (PLCP) protocol data unit (PPDU) to a recipient electronic device on a first link between the electronic device and the recipient electronic device, where the PPDU includes a PPDU preamble and a set of media access control (MAC) protocol data units (MPDUs). Then, the electronic device may receive, using a second radio in the electronic device, feedback from the recipient electronic device on a second link between the electronic device and the recipient electronic device. Next, the electronic device may perform the remedial action based at least in part on the feedback. For example, the electronic device may abort the PPDU transmission and/or retransmit one or more of the set of MPDUs.

公开(公告)号：US20210219363A1

公开(公告)日：2021-07-15

申请号：US17147322

申请日：2021-01-12

Applicant: Apple Inc.

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

IPC: H04W76/15 ,  H04W24/08 ,  H04W76/11 ,  H04W76/30

Abstract: This disclosure relates to methods for conducting multilink communications between wireless devices over a wireless local area network (WLAN). A wireless device determines link availability for multiple wireless links of the wireless device. The wireless device transmits link availability information for the multiple wireless links of the wireless device using a first wireless link of the wireless device.

公开(公告)号：US12225506B2

公开(公告)日：2025-02-11

申请号：US17491155

申请日：2021-09-30

Applicant: Apple Inc.

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

IPC: H04W72/044 ,  H04W74/0808

Abstract: Methods and apparatuses are disclosed for high-bandwidth stations in a WiFi environment. In embodiments, a bandwidth of communications supported by the access point is divided into multiple frequency segments. In an embodiment, bandwidths up to 320 MHz are supported, which can be subdivided into four frequency segments of 80 MHz each. Different stations park on different frequency segments, whereas the access point has its primary channel located on the first frequency segment. With this configuration, uplink and downlink channel access can be provided to the different stations using a primary channel hopping pattern, which is provided to the stations from the AP. This pattern provides time windows for each frequency segment, during which the stations in that segment are able to freely communicate. Several other aspects of the disclosure further support this configuration and other high-bandwidth configurations.