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：US20220272635A1

公开(公告)日：2022-08-25

申请号：US17742157

申请日：2022-05-11

Applicant: Apple Inc.

Inventor： Christiaan A. Hartman ,  Guoqing Li ,  Yong Liu ,  Su Khiong Yong ,  Jarkko L. Kneckt

IPC: H04W52/02

Abstract: An interface circuit in an electronic device (such as an access point) may receive a setup request associated with the recipient electronic device. The setup request may specify a group address for which the recipient electronic device wants to receive associated frames and a proposed transmission interval. Based at least in part on the proposed transmission interval, the electronic device may determine a transmission schedule and/or may assign, based at least in part on the group address, the recipient electronic device to an aggregated group having a flexible multicast service identifier (FMSID). Then, the electronic device may provide a wake-up frame for the recipient electronic device, where the wake-up frame includes an identifier of the aggregated group for which a group-addressed frame will subsequently be transmitted by the electronic device. Moreover, the wake-up frame may be provided at a transmission time based at least in part on the transmission schedule.

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：US11252555B2

公开(公告)日：2022-02-15

申请号：US14794011

申请日：2015-07-08

Applicant: Apple Inc.

Inventor： Chiu Ngok E. Wong ,  Christiaan A. Hartman ,  Zheng Zeng ,  Joonsuk Kim ,  Su Khiong Yong ,  Yong Liu

IPC: H04W8/18 ,  H04W52/02 ,  H04L29/06 ,  H04W84/12

Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration. In either case, the wireless device may receive subsequent communications according to the first configuration.

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：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：US10757731B2

公开(公告)日：2020-08-25

申请号：US16383155

申请日：2019-04-12

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Joonsuk Kim ,  Christiaan A. Hartman ,  Syed Aon Mujtaba ,  Chiu Ngok E. Wong ,  Yong Liu ,  Su Khiong Yong

IPC: H04W74/00 ,  H04W74/08 ,  H04L5/00

Abstract: Some embodiments are directed to grouping electronic devices into contention groups to reduce uplink Orthogonal Frequency-Division Multiple Access (OFDMA) random access (OFDMA-RA) collisions. An access point may explicitly assign an electronic device to a contention group, or the electronic device may implicitly determine an assignment to the contention group. To explicitly assign a device to a contention group, the access point may randomly assign or assign based on a criteria of the electronic device. Examples of criteria include an association identifier (AID), a traffic type/quality of service (QoS) category, a power saving preference, and an association status. The electronic device may implicitly determine a contention group assignment based on the total number of contention groups. The electronic device may use the explicitly or implicitly assigned contention group number to determine whether the electronic device may contend for a given trigger frame random access (TF-R) frame.