公开(公告)号：WO2015038921A1

公开(公告)日：2015-03-19

申请号：PCT/US2014/055434

申请日：2014-09-12

Applicant: APPLE INC.

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

IPC: H04L1/18 ,  H04L1/00

CPC classification number: H04W40/22 ,  H04L1/0061 ,  H04L1/1845 ,  H04L1/1864 ,  H04L1/189 ,  H04L45/70 ,  H04W24/08 ,  H04W84/12

Abstract: A method and device for decoding packets received via a wireless local area network. The method performed by the device including receiving a packet, the packet including a signal portion and a data portion, verifying the signal portion of the packet is valid, determining if the packet is destined for the device, determining if the packet is a retransmission, combining, when the packet is a retransmission, information from the data portion of the packet with stored information from a previously received packet having a data portion that was not successfully decoded and attempting to decode the packet based at least in part on the information and stored information.

Abstract translation: 一种用于对经由无线局域网接收的分组进行解码的方法和装置。 该装置执行的方法包括：接收分组，包括信号部分和数据部分的分组，验证分组的信号部分是有效的，确定分组是否去往设备，确定分组是否是重传， 当分组是重传时，组合来自具有来自先前接收到的分组的分组的数据部分的信息，所述分组具有未成功解码的数据部分并且至少部分地基于所述信息尝试解码分组，并且存储 信息。

公开(公告)号：WO2015038226A1

公开(公告)日：2015-03-19

申请号：PCT/US2014/045426

申请日：2014-07-03

Applicant: APPLE INC.

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

IPC: H04W52/02 ,  H04W28/02 ,  H04W88/02 ,  H04W84/12

CPC classification number: H04W52/0238 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

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.

Abstract translation: 为了在与无线局域网（WLAN）中的另一电子设备通信期间减少电子设备的功耗，电子设备在给定分组的有效载荷之前分析给定分组中的字段，以查找指定 给定包的目的地。 例如，信息可以包括：目的地的完全相关联的标识（AID），目的地的部分媒体访问控制（MAC）地址; 和/或目的地的压缩（MAC）地址。 信息可以被包括在给定分组的前导码中。 具体地，该信息可以替代给定分组中的高吞吐量信号字段中的长度信息。 此外，如果目的地不是电子设备，则电子设备转储给定分组并改变电子设备的功率状态，从而降低功耗。

公开(公告)号：WO2014172468A1

公开(公告)日：2014-10-23

申请号：PCT/US2014/034384

申请日：2014-04-16

Applicant: APPLE INC.

Inventor： KIM, Yuchul ,  KIM, Young Jae ,  KIM, Joonsuk ,  WANG, Xiaowen ,  MAJJIGI, Vinay ,  MUJTABA, Syed Aon ,  ZHANG, Dawei

IPC: H04B1/7143

CPC classification number: H04W8/005 ,  H04B1/7143

Abstract: A device and method generates a hopping scheme for mobile stations of a wireless network. The method includes receiving a number of channels N of the wireless network. The method includes generating a shuffling matrix as a function of the number of channels N, each row of the shuffling matrix being indicative of a respective one of the mobile stations, each column of the shuffling matrix being indicative of a respective broadcast time of a discovery signal in a hopping scheme. The method includes generating the hopping scheme for the mobile stations in the channels as a function of the shuffling matrix. The hopping scheme maximizes an interval between two consecutive broadcast times that any two of the mobile stations are assigned to transmit discovery signals on adjacent channels.

Abstract translation: 一种设备和方法为无线网络的移动台生成跳频方案。 该方法包括接收无线网络的多个信道N. 该方法包括根据通道数N的函数产生混洗矩阵，混洗矩阵的每一行表示移动站中的相应一个，混洗矩阵的每一列表示发现的相应广播时间 信号在跳频方案。 该方法包括根据混洗矩阵来生成信道中的移动站的跳频方案。 跳频方案最大化两个连续广播时间之间的间隔，任何两个移动台被分配用于在相邻信道上发送发现信号。

公开(公告)号：EP3624503A1

公开(公告)日：2020-03-18

申请号：EP19205230.6

申请日：2015-05-27

Applicant: Apple Inc.

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

IPC: H04W52/02

Abstract: Embodiments described herein relate to providing reduced power consumption in wireless communication systems, such as 802.11 WLAN systems. Timing information regarding power save opportunities (PSOPs) may be provided in communication frames, which may inform mobile devices of expected frame exchange periods during which they may transition to a Doze state. Additional PSOP information may be included in beacon frames, which may inform mobile devices of expected multicast periods during which they may transition to a Doze state. This may operate to provide improvements in terms of power consumption.

公开(公告)号：EP2963979A1

公开(公告)日：2016-01-06

申请号：EP15173757.4

申请日：2015-06-25

Applicant: APPLE INC.

Inventor： KIM, Yuchul ,  KIM, Joonsuk

IPC: H04W48/18 ,  H04W84/12

CPC classification number: H04W28/0236 ,  H04L43/0888 ,  H04L43/0894 ,  H04W24/08 ,  H04W28/0231 ,  H04W48/18

Abstract: This disclosure relates to determining load and estimating throughput of wireless networks by a wireless device. According to some embodiments, the numbers of active downlink and uplink nodes in a wireless network may be determined. Channel utilization of the wireless network may also be determined. An uplink data rate and a downlink data rate of the wireless device in the wireless network may be estimated. Based on the numbers of active downlink and uplink nodes, channel utilization, and the uplink data rate and a downlink data rate of the wireless device, the maximum possible uplink throughput and downlink throughput of the wireless device in the wireless network may be estimated. Such throughput estimates may be used to select a wireless network to join from among multiple available wireless networks.

Abstract translation: 本公开涉及确定无线设备的负载和估计无线网络的吞吐量。 根据一些实施例，可以确定无线网络中的活动下行链路和上行链路节点的数量。 还可以确定无线网络的信道利用率。 可以估计无线网络中的无线设备的上行链路数据速率和下行链路数据速率。 基于活动下行链路和上行链路节点的数量，信道利用率以及无线设备的上行链路数据速率和下行链路数据速率，可以估计无线网络中的无线设备的最大可能上行链路吞吐量和下行链路吞吐量。 这样的吞吐量估计可以用于选择从多个可用无线网络中加入的无线网络。

公开(公告)号：EP2966914B1

公开(公告)日：2018-01-17

申请号：EP15176216.8

申请日：2015-07-10

Applicant: APPLE INC.

Inventor： WONG, Chiu Ngok E. ,  HARTMAN, Christiaan A. ,  ZENG, Zheng ,  KIM, Joonsuk ,  YONG, Su Khiong ,  LIU, Yong

IPC: H04W52/02

CPC classification number: H04W8/183 ,  H04L69/22 ,  H04W52/0216 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/26

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：EP3065329A2

公开(公告)日：2016-09-07

申请号：EP16159000.5

申请日：2016-03-07

Applicant: Apple Inc.

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

IPC: H04L1/00

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: 本公开描述了一种用于处理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）头部组合成聚合的MAC头部的接口电路。 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：EP3016299A1

公开(公告)日：2016-05-04

申请号：EP15191807.5

申请日：2015-10-28

Applicant: APPLE INC.

Inventor： WANG, Xiaowen ,  MAJJIGI, Vinay R. ,  MUJTABA, Syed Aon ,  KIM, Joonsuk

IPC: H04B7/08

CPC classification number: H04B7/0877 ,  H04B7/0871 ,  H04B7/0874 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/168 ,  Y02D70/26 ,  Y02D70/444

Abstract: Wireless communication devices (UEs) may include multiple receive (RX) chains and associated antennas, and at least one transmit (TX) chain co-located with one of the RX chains. The UE may track instant fading of the antenna gain(s) during reception of packets from an associated access point (AP) device to which the UE intends to transmit packets. The UE may also track long term antenna gain(s), using any packets received at the multiple RX chains within the UE. At a switching occasion, a decision is made by the UE whether to switch antennas. If the instant fading detection is based on packets received no later than a specified time period prior to the switching occasion, then the UE may make the switching decision based on the results of the instant fading tracking. Otherwise, the UE may make the switching decision based on the results of the long term antenna gain tracking. The wireless communication devices may also evaluate signal strength during transmission of the RX packets, and/or may evaluate a possible imbalance (gain difference) between the multiple RX chains within the wireless communication device. Signal strength detection may be enabled when non-MIMO transmissions are taking place, while imbalance detection (antenna gain comparison) may be enabled when a specified number of single-stream packets have been received. Once the decision has been made to operate in a reduced number RX path mode, decision to reactivate one or more additional RX paths may be made based on MIMO detection, a detection of a drop in signal quality, and/or upon expiration of a power save timer.

Abstract translation: 无线通信设备（UE）可以包括多个接收（RX）链和相关联的天线，以及与RX链中的一个共同定位的至少一个发射（TX）链。 UE可以在接收来自UE打算发送分组的相关接入点（AP）设备的分组期间跟踪天线增益的即时衰落。 UE还可以使用在UE内的多个RX链处接收到的任何分组来跟踪长期天线增益。 在切换时刻，由UE决定是否切换天线。 如果即时衰落检测是基于在切换时刻之前的指定时间段之前接收的分组，则UE可以基于即时衰落跟踪的结果进行切换决定。 否则，UE可以基于长期天线增益跟踪的结果进行切换决定。 无线通信设备还可以评估RX分组的传输期间的信号强度，和/或可以评估无线通信设备内的多个RX链之间的可能的不平衡（增益差）。 当正在进行非MIMO传输时，可以启用信号强度检测，而当接收到指定数量的单流分组时，可以启用不平衡检测（天线增益比较）。 一旦做出了以减少数量的RX路径模式操作的决定，可以基于MIMO检测，信号质量下降检测和/或在功率失效时进行重新激活一个或多个附加RX路径的决定 保存定时器。

公开(公告)号：EP3301981B1

公开(公告)日：2020-03-11

申请号：EP17202051.3

申请日：2015-07-10

Applicant: Apple Inc.

Inventor： WONG, Chiu Ngok E. ,  HARTMAN, Christiaan A. ,  ZENG, Zheng ,  KIM, Joonsuk ,  YONG, Su Khiong ,  LIU, Yong

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

公开(公告)号：EP3089525B1

公开(公告)日：2018-08-22

申请号：EP16167726.5

申请日：2016-04-29

Applicant: Apple Inc.

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

IPC: H04W88/08 ,  H04W88/02 ,  H04W84/12 ,  H04W40/24 ,  H04W40/00 ,  H04W28/14 ,  H04L5/00 ,  H04W52/02

CPC classification number: H04W52/0209 ,  H04L5/0055 ,  H04W28/14 ,  H04W40/005 ,  H04W40/244 ,  H04W52/0216 ,  H04W52/0229 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  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.