公开(公告)号：US20160262052A1

公开(公告)日：2016-09-08

申请号：US15062122

申请日：2016-03-06

Applicant: Apple Inc.

Inventor： Joonsuk KIM ,  Chiu Ngok E. WONG ,  Syed A. MUJTABA

IPC: H04W28/06 ,  H04L1/20 ,  H04L29/06 ,  H04L29/08 ,  H04W72/04

CPC classification number: H04W28/065 ,  H04L1/0054 ,  H04L1/007 ,  H04L1/0083 ,  H04L1/201 ,  H04L69/04 ,  H04L69/321 ,  H04W72/0446 ,  H04W84/12

Abstract: The present disclosure describes a system, method, and computer program product embodiments for processing an A-MPSDU frame structure. An example system can include an interface circuit to combine a plurality of media access control (MAC) headers corresponding to a plurality of media access control service data units (MSDUs) into an aggregated MAC header. The aggregated MAC header can include length information for each of the MSDUs. The interface circuit can also insert the aggregated MAC header into a frame and transmit the frame using an antenna.

Abstract translation: 本公开描述了用于处理A-MPSDU帧结构的系统，方法和计算机程序产品实施例。 示例系统可以包括将与多个媒体访问控制服务数据单元（MSDU）对应的多个媒体访问控制（MAC）报头组合成聚合的MAC报头的接口电路。 聚合的MAC报头可以包括每个MSDU的长度信息。 接口电路还可以将聚合的MAC报头插入到帧中并使用天线发送帧。

公开(公告)号：US20150208349A1

公开(公告)日：2015-07-23

申请号：US14502811

申请日：2014-09-30

Applicant: APPLE INC.

Inventor： Harish RAMAMURTHY ,  Joonsuk KIM ,  Yong LlU ,  Christopher HANSEN

IPC: H04W52/02

CPC classification number: H04W52/0212 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0235 ,  H04W52/028 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: A station, a method performed by a station and a corresponding method performed by an access point (AP) of a network to allow the station to operate a wireless local area network (WLAN) radio in a sleep state until the WLAN radio is ready to receive a beacon from the AP. The station includes a low power (LP) radio configured to receive a wake up signal from an AP of a network to which the station is connected. The station further includes a WLAN radio configured to operate in a sleep state until the WLAN radio receives an indication from the LP radio that the wakeup signal has been received, wherein WLAN radio is further configured to operate in a fully awake state after receipt of the indication to receive a beacon from the AP indicating a data transmission is pending for the station.

Abstract translation: 站，由站执行的方法和由网络的接入点（AP）执行的相应方法，以允许该站在休眠状态下操作无线局域网（WLAN）无线电，直到WLAN无线电准备好 从AP接收信标。 该站包括被配置为从站连接到的网络的AP接收唤醒信号的低功率（LP）无线电。 所述站还包括被配置为在睡眠状态下操作的WLAN无线电，直到WLAN无线电从LP无线电接收到已经接收到所述唤醒信号的指示，其中WLAN无线电还被配置为在接收到所述唤醒信号之后在完全清醒状态下操作 从AP指示接收指示数据传输的信标的指示正在等待该站。

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：US20180035379A1

公开(公告)日：2018-02-01

申请号：US15461162

申请日：2017-03-16

Applicant: APPLE INC.

Inventor： Joonsuk KIM ,  Syed A. MUJTABA ,  Xiaowen WANG

IPC: H04W52/02

Abstract: In order to reduce power consumption of an electronic device during communication with another electronic device in a wireless local area network (WLAN), the electronic device analyzes fields in a given packet prior to a payload of the given packet to look for information that specifies a destination of the given packet. For example, the information may include: a full associated identification (AID) of the destination, a partial media-access-control (MAC) address of the destination; and/or a compressed (MAC) address of the destination. The information may be included in the preamble of the given packet. In particular, the information may replace length information in a high-throughput signal field in the given packet. Moreover, if the destination is other than the electronic device, the electronic device dumps the given packet and changes a power state of the electronic device, thereby reducing the power consumption.

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：US20160365952A1

公开(公告)日：2016-12-15

申请号：US15178373

申请日：2016-06-09

Applicant: Apple Inc.

Inventor： Joonsuk KIM ,  Yuchul KIM ,  Syed A. MUJTABA

IPC: H04L1/18 ,  H04L1/00 ,  H04L12/741

CPC classification number: H04L1/1816 ,  H04L1/0061 ,  H04L1/0083 ,  H04L1/1819 ,  H04L1/1845 ,  H04L45/74 ,  H04W84/12

Abstract: Apparatus and methods for a hybrid automatic repeat request (H-ARQ) mechanism for wireless communication devices of a wireless local area network (WLAN) are disclosed. Methods and apparatus to determine whether a packet is an original, first transmission or a retransmission of a previously transmitted packet without decoding the payload of the packet are disclosed. Medium access control (MAC) addresses of a transmitter, such as an access point (AP), and a receiver, such as a station (STA), of a WLAN are encoded separately with a retransmission bit to indicate whether the packet is retransmitted. For an aggregated MAC protocol data unit (A-MPDU), a sequence number is included to determine which MAC protocol data units (MPDUs) of the A-MPDU are retransmitted. When retransmission is indicated, the receiver of the STA performs a hybrid automatic repeat request (H-ARQ) process to combine the retransmitted packet with previously received packets.

Abstract translation: 公开了一种用于无线局域网（WLAN）的无线通信设备的混合自动重传请求（H-ARQ）机制的装置和方法。 公开了确定分组是原始的，第一次传输还是先前发送的分组的重传而不解码分组的有效载荷的方法和装置。 诸如接入点（AP）的发射机的媒体接入控制（MAC）地址以及WLAN的接收机（例如，站点（STA））被分别用重传比特编码以指示分组是否被重传。 对于聚合MAC协议数据单元（A-MPDU），包括序列号，以确定重传A-MPDU的哪些MAC协议数据单元（MPDU）。 当指示重传时，STA的接收者执行混合自动重传请求（H-ARQ）处理，以将重传的分组与先前接收的分组组合。

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：US20160323820A1

公开(公告)日：2016-11-03

申请号：US15142212

申请日：2016-04-29

Applicant: Apple Inc.

Inventor： Chiu Ngok E. WONG ,  Syed A. MUJTABA ,  Christiaan A. HARTMAN ,  Joonsuk KIM

IPC: H04W52/02 ,  H04L5/00 ,  H04W28/14 ,  H04W40/00 ,  H04W40/24

CPC classification number: H04W52/0209 ,  H04L5/0055 ,  H04W28/14 ,  H04W40/005 ,  H04W40/244 ,  H04W52/0216 ,  H04W52/0229 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/26

Abstract: A station (STA) of a wireless local area network (WLAN) transitions implicitly between power management (PM) modes or PM states, without providing an explicit indication of the PM mode/state change to an access point (AP) of the WLAN. Transitions include changes between an active mode and a power save (PS) mode, or between an awake state and a doze state of the PS mode. Transitions occur immediately after receipt of a beacon indicating pending data for the STA, after an offset time indicated in the beacon, or at a specific wake time negotiated with the AP. After data reception is complete, the STA transitions implicitly to the PS mode or a doze state of the PS mode, after a power save inactivity timeout period or after receiving an indication that data transmission is complete.

Abstract translation: 无线局域网（WLAN）的站（STA）在功率管理（PM）模式或PM状态之间隐含地转换，而不提供对WLAN的接入点（AP）的PM模式/状态改变的明确指示。 转换包括有源模式和省电（PS）模式之间或PS模式的唤醒状态和瞌睡状态之间的变化。 在信标指示的偏移时间之后或与AP协商的特定唤醒时间之后，在接收到指示STA的等待数据的信标之后立即发生转换。 在数据接收完成之后，STA在省电不活动超时时段之后或在接收到数据传输完成的指示之后，隐含地转换到PS模式或PS模式的打盹状态。

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。