公开(公告)号：US20220132481A1

公开(公告)日：2022-04-28

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: H04W72/04 ,  H04W74/08

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.

公开(公告)号：US20210377851A1

公开(公告)日：2021-12-02

申请号：US17324518

申请日：2021-05-19

Applicant: Apple Inc.

Inventor： Yong LIU ,  Su Khiong YONG ,  Qi WANG ,  Tianyu WU ,  Lochan VERMA ,  Jinjing JIANG ,  Jarkko L. KNECKT

IPC: H04W52/02 ,  H04W28/02 ,  H04W76/25

Abstract: 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.

公开(公告)号：US20210076437A1

公开(公告)日：2021-03-11

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 ,  H04W80/02 ,  H04W76/11 ,  H04W48/16 ,  H04W12/04

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：US20200221292A1

公开(公告)日：2020-07-09

申请号：US16733489

申请日：2020-01-03

Applicant: Apple Inc.

Inventor： Guoqing LI ,  Christiaan A. HARTMAN ,  Yong LIU ,  Jarkko L. KNECKT

IPC: H04W8/26 ,  H04L29/12 ,  H04W76/11

Abstract: Some embodiments of this disclosure include apparatuses and methods for implementing discovery frames and group addressed frames communication. For example, some embodiments relate to a method including generating a first frame to be transmitted to a first electronic device. An association identifier (AID) value of the first frame is set to a first value to indicate that the first frame is an individually addressed frame addressed to the first electronic device. The method further includes generating a second frame to be transmitted to a group of one or more electronic devices. An AID value of the second frame is set to a second value different from the first value. The method also includes transmitting the first frame and the second frame.

公开(公告)号：US20200045634A1

公开(公告)日：2020-02-06

申请号：US16403983

申请日：2019-05-06

Applicant: Apple Inc.

Inventor： Jarkko L. KNECKT ,  Christiaan A. HARTMAN ,  Qi WANG ,  Su Khiong YONG ,  Yong LIU

IPC: H04W52/02 ,  H04L12/18 ,  H04W40/24

Abstract: Some embodiments of this disclosure include apparatuses and methods for implementing a target wake time (TWT) technique for multicast communication. For example, some embodiments relate to a method including configuring a target wake time (TWT) process for delivering one or more multicast packets to a group of electronic devices. The method further includes determining that a service period associated with the TWT process has started and transmitting, in accordance with the TWT process, the one or more multicast packets during the service period, where the one or more transmitted multicast packets are addressed to the group of electronic devices.

公开(公告)号：US20190386793A1

公开(公告)日：2019-12-19

申请号：US16459544

申请日：2019-07-01

Applicant: Apple Inc.

Inventor： Guoqing LI ,  Yong LIU ,  Christiaan A. HARTMAN ,  Ashok RANGANATH ,  Oren SHANI ,  Su Khiong YONG ,  Jarkko L. KNECKT ,  Joonsuk KIM

IPC: H04L5/00 ,  H04W74/06 ,  H04L12/801

Abstract: During operation, an interface circuit in an electronic device may receive, from a second electronic device (such as an access point in a WLAN), an uplink trigger frame that may specify an access category. In response to the uplink trigger frame, the electronic device may first include data associated with the specified access category in one or more frames, and then may transmit the one or more frames to the second electronic device. Moreover, when all the data associated with the specified access category has been transmitted or when there is no data associated with the specified access category, and when there is leftover time in an allocation associated with the uplink trigger frame, the interface circuit may transmit the one or more frames to the second electronic device with additional data associated with another access category that is different from the specified access category.

公开(公告)号：US20170230860A1

公开(公告)日：2017-08-10

申请号：US15428959

申请日：2017-02-09

Applicant: Apple Inc.

Inventor： Guoqing LI ,  Christiaan A. HARTMAN ,  Oren SHANI ,  Matthew L. SEMERSKY ,  Joonsuk KIM ,  Jarkko KNECKT ,  Ashok RANGANATH ,  Yong LIU ,  Su Khiong YONG

IPC: H04W28/02 ,  H04L29/12

CPC classification number: H04W28/0278 ,  H04W84/12

Abstract: A wireless local area network (WLAN) station (STA) reports, with a medium access control (MAC) frame, a buffer status of an urgent traffic identifier (TID) to a second STA. In some embodiments, the second STA is also an access point (AP). The delay in reporting is reduced by providing a buffer status report for the urgent TID in a data frame being transmitted to carry data for a current TID. The buffer status report, in some embodiments, provides the value of the urgent TID. In some embodiments, the buffer status report provides an indication of the amount of data in a buffer corresponding to the urgent TID. In some embodiments, the buffer status report is based on an aggregated measure of more than one buffer with data awaiting transmission. The transmission of the MAC frame, in some embodiments, is unsolicited.

公开(公告)号：US20160330742A1

公开(公告)日：2016-11-10

申请号：US15147443

申请日：2016-05-05

Applicant: Apple Inc.

Inventor： Guoqing LI ,  Joonsuk KIM ,  Christiaan A. HARTMAN ,  Yong LIU ,  Chiu Ngok E. WONG ,  Syed Aon MUJTABA ,  Su Khiong YONG

IPC: H04W72/04 ,  H04L29/08 ,  H04L29/06 ,  H04L29/12 ,  H04H20/38 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04W72/0453 ,  H04B7/0452 ,  H04L1/18 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0055 ,  H04W84/12

Abstract: Managing orthogonal frequency division multiple access (OFDMA) uplink acknowledgements is described herein. An example system can include an interface circuit to generate a physical layer convergence protocol data unit (PPDU) including a physical layer preamble, a first sub-channel field corresponding to a first station, and a second sub-channel field corresponding to a second station. The first sub-channel field can carry a first unicast trigger corresponding to the first station, and the second sub-channel field can carry a second unicast trigger corresponding to the second station. The interface circuit can also transmit the PPDU to the first and second stations.

Abstract translation: 本文描述管理正交频分多址（OFDMA）上行链路确认。 示例系统可以包括用于生成包括物理层前同步码，对应于第一站的第一子信道字段和对应于第二站的第二子信道字段的物理层汇聚协议数据单元（PPDU）的接口电路 。 第一子信道字段可以携带与第一站相对应的第一单播触发，并且第二子信道字段可以携带对应于第二站的第二单播触发。 接口电路还可以将PPDU发送到第一和第二站。

公开(公告)号：US20160315782A1

公开(公告)日：2016-10-27

申请号：US15137870

申请日：2016-04-25

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Joonsuk KIM ,  Chiu Ngok E. WONG ,  Yong LIU ,  Su Khiong YONG ,  Christiaan A. Hartman ,  Syed Aon MUJTABA ,  Ye SUN ,  Shu DU ,  Wen ZHAO

IPC: H04L12/18 ,  H04B7/04 ,  H04W84/12 ,  H04L5/00

Abstract: A method for receiving feedback on a quality of multicast transmissions in a Wireless Local Access Network (WLAN) including a source electronic device (e.g., an access point) and a plurality of electronic devices is disclosed, according to some embodiments. The method can include (i) transmitting a plurality of multicast packets addressed to a subset of the plurality of electronic devices by the source electronic device; (ii) concurrently polling the subset of the plurality of electronic devices by the source electronic device; and (iii) receiving a plurality of block acknowledgements (BAs) from at least the subset of the plurality of electronic devices by the source electronic device. Each BA may include information on a quality of reception of two or more multicast packets received at an electronic device.

Abstract translation: 根据一些实施例，公开了一种用于在包括源电子设备（例如，接入点）和多个电子设备的无线本地接入网络（WLAN）中接收关于多播传输质量的反馈的方法。 该方法可以包括（i）由源电子设备发送寻址到多个电子设备的子集的多个多播分组; （ii）由所述源电子设备同时轮询所述多个电子设备的子集; 以及（iii）由所述源电子设备从所述多个电子设备的至少所述子集接收多个块确认（BAs）。 每个BA可以包括关于在电子设备处接收的两个或多个多播分组的接收质量的信息。

公开(公告)号：US20160198317A1

公开(公告)日：2016-07-07

申请号：US14988110

申请日：2016-01-05

Applicant: Apple Inc.

Inventor： Guoqing LI ,  Su Khiong YONG ,  Yong LIU ,  Christiaan A. Hartman ,  Gregory CHAPMAN ,  Eric San Fung LEE ,  Chiu Ngok E. WONG

IPC: H04W4/08 ,  H04W72/04

CPC classification number: H04W4/08

Abstract: In order to flexibly manage and broadcast content to electronic devices in a multicast group, a multicast group management protocol allows one or more multicast group masters to be specified. In addition to controlling membership in the multicast group, a multicast group master can define or specify a multicast session, in which content from one or more sources is broadcast to at least a subset of the electronic devices or sinks in the multicast group. The multicast group management protocol supports concurrent broadcasts of content to different multicast sessions. Moreover, the broadcasts in the different multicast sessions may have different: priorities, encoding techniques, quality-of-service policies, reliability, and/or number of parity bits. For example, the different encoding techniques may include different layers in H.264 Scalable Video Coding. Alternatively or additionally, the different number of parity bits may be associated with application layer forward error correction.

Abstract translation: 为了灵活地管理和广播内容到组播组中的电子设备，组播组管理协议允许指定一个或多个组播组主机。 除了控制多播组中的成员资格之外，多播组主机可以定义或指定多播会话，其中来自一个或多个源的内容广播到多播组中的电子设备或汇点的至少一个子集。 组播组管理协议支持对不同组播会话的内容的并发广播。 此外，不同多播会话中的广播可以具有不同的优先级，编码技术，服务质量策略，可靠性和/或奇偶校验位数。 例如，不同的编码技术可以包括H.264可缩放视频编码中的不同层。 或者或另外，不同数量的奇偶校验位可以与应用层前向纠错相关联。