-
公开(公告)号：US20180115439A1
公开(公告)日：2018-04-26
申请号：US15792671
申请日：2017-10-24
Applicant: Apple Inc.
Inventor： Jahshan A. BHATTI , Brent M. LEDVINA , Robert W. BRUMLEY , Wei ZHANG , Chiu Ngok E. WONG
CPC classification number: H04L25/0208 , G01S5/0215 , G01S5/0273 , G01S11/02 , G01S13/765 , H04B17/30 , H04B17/364 , H04L25/0204 , H04W84/12
Abstract: The subject system aggregates, or stitches, multiple component channel estimates to generate an aggregated wideband channel estimate that can be used to determine more accurate time of arrival estimations than those determinable from the individual component channel estimates. The subject system also provides for multipath detection on a single channel or an aggregated channel that may be used to facilitate an accurate time of arrival estimation. For example, information derived from the multipath detection may be used to supplement and/or enhance a time of arrival estimation algorithm. The subject system also provides a sounding protocol that allows devices to perform one or more signal exchanges to facilitate generating the aggregated wideband channel estimate and/or to facilitate performing the multipath detection. The protocol allows the devices to perform signal exchanges over one or more channels within a coherence time, and also provides for security mechanisms as well as failure recovery.
-
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
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：US20190124593A1
公开(公告)日：2019-04-25
申请号：US16135378
申请日：2018-09-19
Applicant: Apple Inc.
Inventor： Chiu Ngok E. WONG , Syed A. MUJTABA , Christiaan A. HARTMAN , Joonsuk KIM
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.
-
Patent Agency Ranking
公开(公告)号：US20170041798A1
公开(公告)日：2017-02-09
申请号：US15230090
申请日：2016-08-05
Applicant: Apple, Inc
Inventor： Guoqing LI , Yong LIU , Joonsuk KIM , Christiaan A. HARTMAN , Chiu Ngok E. WONG , Syed Aon MUJTABA , Matt SEMERSKY , Su Khiong YONG
CPC classification number: H04W74/0816
Abstract: Disclosed herein are system, method, and computer program product embodiments for enabling a spatial reuse opportunity at a high efficiency (HE) station and a network allocation vector (NAV) reset capability at a legacy station using a Request to Send and/or Clear to Send (RTS and/or CTS) frame. For example, the method can include receiving a RTS frame with a redefined field that specifies spatial reuse information. The NAV can be set based on the RTS frame. The method can determine whether a second frame was received within a threshold time after a Short Interframe Space (SIFS). Finally, the method can reset the NAV based on whether the second frame was received within the threshold time.
Abstract translation: 本文公开了一种系统，方法和计算机程序产品实施例，其使得能够在高效率（HE）站处实现空间重用机会，并且使用发送请求和/或清除至 发送（RTS和/或CTS）帧。 例如，该方法可以包括接收具有指定空间重用信息的重定义字段的RTS帧。 可以基于RTS帧设置NAV。 该方法可以确定在短帧间间隔（SIFS）之后的阈值时间内是否接收到第二帧。 最后，该方法可以基于在阈值时间内是否接收到第二帧来重置NAV。
-
5.发明申请公开(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
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
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
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
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。
-
-
-
-
-
-
-
Search Results
8
records
(took 0.015 seconds)
