公开(公告)号：US20180014165A1

公开(公告)日：2018-01-11

申请号：US15644481

申请日：2017-07-07

Applicant: Apple Inc.

Inventor： Guoqing LI ,  Oren SHANI ,  Christiaan A. HARTMAN ,  Jarkko L. KNECKT ,  Syed A. MUJTABA ,  Matthew L. SEMERSKY ,  Yaniv DVORY ,  Hay LEV ,  Yoel BOGER

IPC: H04W4/08 ,  H04L5/00 ,  H04W84/12 ,  H04W88/08 ,  H04W88/02

Abstract: An access point transmits a trigger frame to a set of electronic devices in a wireless local area network (WLAN). In response to one or more requests to send data, the access point transmits the trigger frame, which includes information specifying an ordered list of electronic devices in the set of electronic devices that are allowed to transmit, and that groups the electronic devices in the ordered list of electronic devices into a first subset of the electronic devices and a second subset of the electronic devices. Subsequently, the access point sequentially receives one or more frames from the ordered list of electronic devices, where a first group of the frames received from at least some of the first subset of the electronic devices use single-user transmission and a second group of frames received from at least some of the second subset of the electronic devices use multi-user transmission.

公开(公告)号：US20170163387A1

公开(公告)日：2017-06-08

申请号：US15439568

申请日：2017-02-22

Applicant: Apple Inc.

Inventor： Tarik TABET ,  Vinay R. MAJJIGI ,  Syed A. MUJTABA ,  Christian W. MUCKE

IPC: H04L1/18 ,  H04W52/02 ,  H04L1/16 ,  H04W76/04

CPC classification number: H04W52/0222 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/1854 ,  H04L1/1864 ,  H04L1/1887 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

Abstract: Apparatus and methods are disclosed for performing delayed hybrid automatic repeat request (HARQ) communications in the downlink (DL) to reduce power consumption for a user equipment (UE) during a connected mode discontinuous reception (C-DRX) cycle. An enhanced NodeB can be configured to monitor a physical uplink control channel (PUCCH) for DL HARQ information to determine when the PUCCH contains a negative acknowledgement (NACK) message, and in response to determining that the PUCCH contains a NACK message, the eNodeB can wait until a next C-DRX ON duration to transmit a HARQ DL retransmission. The eNodeB can also determine whether or not to bundle the HARQ DL retransmission in consecutive transmission time intervals, based on a signal to interference plus noise ratio (SINR) associated with the UE.

公开(公告)号：US20170070418A1

公开(公告)日：2017-03-09

申请号：US15256013

申请日：2016-09-02

Applicant: Apple Inc.

Inventor： Guoqing LI ,  Yong LIU ,  Joonsuk KIM ,  Christiaan A. HARTMAN ,  Su Khiong YONG ,  Syed A. MUJTABA ,  Matthew L. SEMERSKY

IPC: H04L12/761 ,  H04L29/06

CPC classification number: H04L45/16 ,  H04L12/189 ,  H04L61/2069 ,  H04W4/06 ,  H04W76/40

Abstract: Disclosed herein are system, method, and computer program product embodiments for selectively decoding a multicast subframe in a multi-user frame for a wireless communications protocol. Embodiments include transmitting a request frame including a multicast group address for a multicast group to an access point (AP). The AP can determine a multicast identifier for the multicast group based on the multicast group address in the request frame. The AP can also transmit a response frame including the determined multicast identifier to a station (STA). The STA can receive a multi-user frame containing a multicast subframe from the AP. The STA can determine whether the multicast subframe is destined for the STA based on the determined multicast identifier and a multicast identifier stored in a preamble of the multi-user frame. The STA can determine whether to decode the multicast subframe based on the determination of whether the multicast subframe is destined for the STA.

Abstract translation: 这里公开了用于在无线通信协议的多用户帧中选择性地解码多播子帧的系统，方法和计算机程序产品实施例。 实施例包括向接入点（AP）发送包括组播组的组播组地址的请求帧。 AP可以根据请求帧中的组播组地址确定组播组的组播标识符。 AP还可以将包括确定的多播标识符的响应帧发送到站（STA）。 STA可以从AP接收包含多播子帧的多用户帧。 STA可以基于所确定的多播标识符和存储在多用户帧的前同步码中的多播标识符来确定多播子帧是否发往STA。 基于确定多播子帧是否发往STA，STA可以确定是否对多播子帧进行解码。

公开(公告)号：US20140220916A1

公开(公告)日：2014-08-07

申请号：US14249263

申请日：2014-04-09

Applicant: Apple Inc.

Inventor： Syed A. MUJTABA ,  Xiaowen WANG ,  Young Jae KIM ,  Vinay R. MAJJIGI ,  Johnson O. SEBENI ,  Tahir SHAMIM ,  Karthik ANANTHARAMAN ,  Kee-Bong SONG ,  Romain TRILLING

IPC: H04B7/08 ,  H04L12/26

CPC classification number: H04B7/082 ,  H04B7/0817 ,  H04B7/0871 ,  H04L43/0823

Abstract: A mobile wireless device adapts receive diversity during discontinuous reception based on downlink signal quality, page indicators and page messages. When the downlink signal quality exceeds a pre-determined threshold, the mobile wireless device decodes a page indicator channel through an initial antenna, and otherwise, decodes a paging channel through the initial antenna without decoding the page indicator channel. The mobile wireless device switches to decoding the paging channel through an alternate antenna when a page indicator decodes as an erasure. When a paging message received through a single antenna decodes with an incorrect error checking code, the mobile wireless devices enables receive diversity through multiple antennas for subsequent decoding. The mobile wireless device switches between single antenna reception and multiple antenna reception based on tracking multiple consecutive error checking code failures and successes.

Abstract translation: 移动无线设备基于下行链路信号质量，页面指示符和寻呼消息来适应不连续接收期间的接收分集。 当下行链路信号质量超过预定阈值时，移动无线设备通过初始天线解码页面指示符信道，否则，通过初始天线对寻呼信道进行解码，而不对页面指示符信道进行解码。 当页面指示符被解码为擦除时，移动无线设备切换到通过替代天线解码寻呼信道。 当通过单个天线接收的寻呼消息用错误的错误校验码进行解码时，移动无线设备能够通过多个天线进行接收分集以用于后续解码。 基于跟踪多个连续的错误检查代码故障和成功，移动无线设备在单天线接收和多天线接收之间切换。

公开(公告)号：US20200267630A1

公开(公告)日：2020-08-20

申请号：US16798835

申请日：2020-02-24

Applicant: Apple Inc.

Inventor： Jarkko L. KNECKT ,  Christiaan A. HARTMAN ,  Guoqing Li ,  Joonsuk KIM ,  Matthew L. SEMERSKY ,  Oren SHANI ,  Syed A. MUJTABA ,  Yong LIU

IPC: H04W48/14 ,  H04W4/80 ,  H04W8/00 ,  H04B17/318

Abstract: Passive and active scanning for extended range wireless networking. The choice between legacy and extended range signaling can depend on one or more factors. For passive scanning, an electronic device may transmit a combination of legacy beacons and extended range beacons for network discovery by receiving electronic devices. For active scanning, an electronic device may transmit extended range probe requests in addition to legacy probe requests to discover all of the access points within its transmission range. Responses to probe requests can use extended range, legacy, single user, and/or multi user protocols.

公开(公告)号：US20190312606A1

公开(公告)日：2019-10-10

申请号：US16272622

申请日：2019-02-11

Applicant: Apple Inc.

Inventor： Wen ZHAO ,  Paul V. FLYNN ,  William S. BURCHILL ,  Vinay R. MAJJIGI ,  Xiaowen WANG ,  Syed A. MUJTABA ,  Kee-Bong SONG

IPC: H04B1/10 ,  H04W72/04 ,  H04B17/29 ,  H04W52/24 ,  H04W52/26 ,  H04W88/06 ,  H04L12/825 ,  H04L12/851 ,  H04L12/801 ,  H04L12/891 ,  H04W28/02 ,  H04W52/36

Abstract: A method for facilitating in-device coexistence between wireless communication technologies on a wireless communication device is provided. The method can include transmitting data traffic from the wireless communication device via an aggressor wireless communication technology; determining occurrence of an in-device interference condition resulting from transmission of the data traffic via the aggressor wireless communication technology interfering with concurrent data reception by the wireless communication device via a victim wireless communication technology; and reducing a bit rate of the data traffic transmitted via the aggressor wireless communication technology in response to the in-device interference condition.

公开(公告)号：US20160234645A1

公开(公告)日：2016-08-11

申请号：US15014487

申请日：2016-02-03

Applicant: Apple Inc.

Inventor： Farouk BELGHOUL ,  Robert W. MAYOR ,  Glenn D. MACGOUGAN ,  Kumar Gaurav CHHOKRA ,  Syed A. MUJTABA ,  Dawei ZHANG ,  Tarik TABET

IPC: H04W4/02 ,  G01C5/06 ,  H04W4/22

CPC classification number: H04W4/025 ,  G01C5/06 ,  H04W4/02 ,  H04W4/33 ,  H04W4/90

Abstract: Apparatus and methods for estimating a location of a wireless device in communication with a wireless network, such as an LTE/LTE-A network, based at least in part on WLAN/WPAN AP measurements and/or barometric measurements are disclosed. The wireless device responds to a location capability inquiry from the wireless network by providing a response that indicates the wireless device is configurable to estimate its location based on WLAN/WPAN AP and/or barometric measurements. The wireless network sends WLAN/WPAN AP and/or barometric reference information to the wireless device to assist in estimating its location. The wireless device measures one or more WLAN/WPAN APs, and the wireless device uses the WLAN/WPAN AP and/or barometric measurements to estimate its location. In some embodiments, GPS/GNSS information is used in conjunction with WLAN/WPAN AP and/or barometric measurements to estimate the location of the wireless device.

Abstract translation: 公开了至少部分地基于WLAN / WPAN AP测量和/或气压测量来估计与无线网络（例如LTE / LTE-A网络）通信的无线设备的位置的设备和方法。 无线设备通过提供指示无线设备可配置以基于WLAN / WPAN AP和/或气压测量来估计其位置的响应来响应来自无线网络的位置能力查询。 无线网络向无线设备发送WLAN / WPAN AP和/或气压参考信息以帮助估计其位置。 无线设备测量一个或多个WLAN / WPAN AP，并且无线设备使用WLAN / WPAN AP和/或气压测量来估计其位置。 在一些实施例中，GPS / GNSS信息与WLAN / WPAN AP和/或气压测量结合使用以估计无线设备的位置。

公开(公告)号：US20160234644A1

公开(公告)日：2016-08-11

申请号：US15014477

申请日：2016-02-03

Applicant: Apple Inc.

Inventor： Farouk BELGHOUL ,  Robert W. MAYOR ,  Glenn D. MACGOUGAN ,  Kumar Gaurav CHHOKRA ,  Syed A. MUJTABA ,  Dawei ZHANG ,  Tarik TABET

IPC: H04W4/02 ,  G01C5/06 ,  H04W4/22

CPC classification number: H04W4/025 ,  G01C5/06 ,  H04W4/02 ,  H04W4/33 ,  H04W4/90

Abstract: Apparatus and methods for estimating a location of a wireless device in communication with a wireless network, such as a UMTS network, based at least in part on WLAN/WPAN AP measurements and/or barometric measurements are disclosed. The wireless device responds to a location capability inquiry from the wireless network by providing a response that indicates the wireless device is configurable to estimate its location based on WLAN/WPAN AP and/or barometric measurements. The wireless network sends WLAN/WPAN AP and/or barometric reference information to the wireless device to assist in estimating its location. The wireless device measures one or more WLAN/WPAN APs, and the wireless device uses the WLAN/WPAN AP and/or barometric measurements to estimate its location. In some embodiments, GPS/GNSS information is used in conjunction with WLAN/WPAN AP and/or barometric measurements to estimate the location of the wireless device.

Abstract translation: 公开了至少部分地基于WLAN / WPAN AP测量和/或气压测量来估计与诸如UMTS网络的无线网络通信的无线设备的位置的装置和方法。 无线设备通过提供指示无线设备可配置以基于WLAN / WPAN AP和/或气压测量来估计其位置的响应来响应来自无线网络的位置能力查询。 无线网络向无线设备发送WLAN / WPAN AP和/或气压参考信息以帮助估计其位置。 无线设备测量一个或多个WLAN / WPAN AP，并且无线设备使用WLAN / WPAN AP和/或气压测量来估计其位置。 在一些实施例中，GPS / GNSS信息与WLAN / WPAN AP和/或气压测量结合使用以估计无线设备的位置。

公开(公告)号：US20150230206A1

公开(公告)日：2015-08-13

申请号：US14175502

申请日：2014-02-07

Applicant: Apple Inc.

Inventor： Tarik TABET ,  Navid DAMJI ,  Ming HU ,  Christian W. MUCKE ,  Vinay R. MAJJIGI ,  Syed A. MUJTABA ,  Johnson O. SEBENI

IPC: H04W72/02 ,  H04W74/02

CPC classification number: H04W72/02 ,  H04L5/0039 ,  H04L5/0041 ,  H04L25/00 ,  H04W52/00 ,  H04W52/245 ,  H04W52/346 ,  H04W52/365 ,  H04W52/42 ,  H04W72/1215 ,  H04W74/02 ,  H04W88/06

Abstract: Apparatus and methods for dynamically adjusting radio frequency circuitry in a wireless communication device are disclosed. The wireless communication device can receive downlink communication using carrier aggregation through a primary component carrier and a secondary component carrier. When carrier aggregation is not enabled, the wireless communication device adjusts the radio frequency circuitry based on default values. When carrier aggregation is enabled, the wireless communication device evaluates radio frequency conditions for the primary and secondary component carriers and adjusts the radio frequency circuitry based on whether uplink and/or downlink communication is power constrained. When uplink communication is power constrained, the wireless communication device adjusts the radio frequency circuitry for optimal performance via the primary component carrier, and when uplink communication is not power constrained, the wireless communication device adjusts the radio frequency circuitry for optimal performance via the combination of the primary and secondary component carriers used for carrier aggregation.

Abstract translation: 公开了一种在无线通信设备中动态调整射频电路的设备和方法。 无线通信设备可以通过主要分量载波和辅助分量载波来使用载波聚合来接收下行链路通信。 当未启用载波聚合时，无线通信设备将根据默认值调整射频电路。 当启用载波聚合时，无线通信设备评估主要和次要分量载波的射频条件，并且基于上行链路和/或下行链路通信是否受功率约束来调整射频电路。 当上行链路通信功率受限时，无线通信设备通过主要分量载波调整射频电路以获得最佳性能，并且当上行链路通信不受功率限制时，无线通信设备通过组合来调整射频电路以获得最佳性能 用于载波聚合的主要和次要分量载波。