公开(公告)号：US09461796B2

公开(公告)日：2016-10-04

申请号：US14746742

申请日：2015-06-22

Applicant: Apple Inc.

Inventor： Seyed Reza Mir Ghaderi ,  Kee-Bong Song ,  Syed A. Mujtaba

IPC: H04L5/00 ,  H04W28/02 ,  H04L1/18 ,  H04W24/02 ,  H04L1/08 ,  H04B7/06 ,  H04L1/00 ,  H04L1/06 ,  H04J11/00

Abstract: Methods and apparatus for interference coordination to improve transmission and reception performance within wireless networks. In one exemplary embodiment, a wireless transmitter transmits multiple transmissions over a determined time. The receiver receives the multiple transmissions and attempts to recover the transmitted signal. Because, the fading channel varies over time for each transmitter-receiver, by combining the received signals over multiple iterations, the signal of interest will be magnified, whereas interference effects will be suppressed.

公开(公告)号：US09386488B2

公开(公告)日：2016-07-05

申请号：US14954626

申请日：2015-11-30

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Syed A. Mujtaba ,  Xiaowen Wang ,  Paul Flynn ,  Kee-Bong Song ,  Vinay Majjigi ,  Youngjae Kim ,  Yuchul Kim ,  Christian Mucke

IPC: H04W36/00 ,  H04W88/06 ,  H04W76/04

CPC classification number: H04W36/0066 ,  H04W36/0088 ,  H04W76/28 ,  H04W88/06

Abstract: Managing radio resources across dual networks includes a wireless mobile device connecting to a first wireless network using a first radio access technology. The wireless device may notify the first network of a capability to be temporarily non-responsive to the first network while maintaining a signaling connection to the first network. The wireless device may communicate with a second network. The wireless device may return to communicating with the first network subsequent to communicating with the second network, and in response to communicating with the second network for less than a predetermined amount of time, the wireless device may send a scheduling request to the first network. In response to receiving a grant acknowledgement from the first network, the wireless device may send a buffer status report that includes a value such as zero to indicate that the wireless device has returned to and can communicate with the first network.

公开(公告)号：US09374259B2

公开(公告)日：2016-06-21

申请号：US14497071

申请日：2014-09-25

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Navid Damji ,  Syed A. Mujtaba ,  Johnson O. Sebeni

IPC: H04L27/06 ,  H04L27/26 ,  H04L5/00 ,  H04W52/02

CPC classification number: H04L27/2649 ,  H04L5/0005 ,  H04L5/0053 ,  H04L27/2647 ,  H04W52/0209 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods and apparatuses to reduce resource consumption by a mobile wireless device when decoding control channel information, such as a physical downlink control channel (PDCCH), in a subframe received from an LTE wireless network are disclosed. Representative methods include demodulating a first set of one or more PDCCH OFDM symbols contained in the subframe based on a first channel estimate; obtaining a second channel estimate based on a second OFDM symbol before demodulating a second set of one or more PDCCH OFDM symbols contained in the subframe based on both the first channel estimate and the second channel estimate. When the PDCCH indicates no downlink assignments for the subframe, the mobile wireless device enters a reduced power consumption mode after demodulating the PDCCH.

Abstract translation: 公开了在从LTE无线网络接收的子帧中解码诸如物理下行链路控制信道（PDCCH）之类的控制信道信息时，减少移动无线设备的资源消耗的方法和装置。 代表性的方法包括基于第一信道估计来解调包含在子帧中的一个或多个PDCCH OFDM符号的第一集合; 基于第一信道估计和第二信道估计，在解调包含在子帧中的第一组一个或多个PDCCH OFDM符号之前，基于第二OFDM符号获得第二信道估计。 当PDCCH不指示子帧的下行链路分配时，移动无线设备在解调PDCCH之后进入降低的功耗模式。

公开(公告)号：US20160157270A1

公开(公告)日：2016-06-02

申请号：US14954626

申请日：2015-11-30

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Syed A. Mujtaba ,  Xiaowen Wang ,  Paul Flynn ,  Kee-Bong Song ,  Vinay Majjigi ,  Youngjae Kim ,  Yuchul Kim ,  Christian Mucke

IPC: H04W74/08 ,  H04W36/00 ,  H04W72/12

CPC classification number: H04W36/0066 ,  H04W36/0088 ,  H04W76/28 ,  H04W88/06

Abstract: Managing radio resources across dual networks includes a wireless mobile device connecting to a first wireless network using a first radio access technology. The wireless device may notify the first network of a capability to be temporarily non-responsive to the first network while maintaining a signaling connection to the first network. The wireless device may communicate with a second network. The wireless device may return to communicating with the first network subsequent to communicating with the second network, and in response to communicating with the second network for less than a predetermined amount of time, the wireless device may send a scheduling request to the first network. In response to receiving a grant acknowledgement from the first network, the wireless device may send a buffer status report that includes a value such as zero to indicate that the wireless device has returned to and can communicate with the first network.

公开(公告)号：US09215000B2

公开(公告)日：2015-12-15

申请号：US14645501

申请日：2015-03-12

Applicant: Apple Inc.

Inventor： Syed A. Mujtaba ,  Kee-Bong Song

IPC: G01S19/13 ,  H04B1/10 ,  H04B7/08

CPC classification number: H04B1/0064 ,  G01S19/13 ,  H04B1/1027 ,  H04B7/0808 ,  H04B7/082 ,  H04B7/0834 ,  H04W64/006 ,  H04W88/06

Abstract: Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry coupled to multiple antennas. Signal strength measurements may be gathered using the antennas and corresponding signal strength difference measurements may be produced to reflect which of the antennas is exhibiting superior performing. Information may be gathered relating to the fading environment of the communications circuitry, such as whether the wireless communications circuitry is transitioning between a fast fading environment and a slow fading environment. For example, the wireless communications circuitry may further include a satellite positioning system receiver or an accelerometer, which may be used in gathering the information. The difference measurements may be filtered and compared to antenna switching criteria such as antenna switching thresholds. An antenna switching threshold may be adjusted in real time based at least in part on the gathered information.

Abstract translation: 可以提供包含无线通信电路的电子设备。 无线通信电路可以包括耦合到多个天线的射频收发器电路。 可以使用天线收集信号强度测量值，并且可以产生对应的信号强度差异测量结果，以反映哪些天线表现出优异的性能。 可以收集关于通信电路的衰落环境的信息，诸如无线通信电路是否在快速衰落环境和慢衰落环境之间转变。 例如，无线通信电路还可以包括可用于收集信息的卫星定位系统接收机或加速度计。 差分测量可以被滤波并且与诸如天线切换阈值的天线切换标准进行比较。 可以至少部分地基于所收集的信息实时地调整天线切换阈值。

公开(公告)号：US20150181483A1

公开(公告)日：2015-06-25

申请号：US14503202

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Rafael L. Rivera-Barreto ,  Samy Khay-Ibbat ,  Sree Ram Kodali ,  Sarma V. Vangala ,  Syed A. Mujtaba ,  Swaminathan Balakrishnan

IPC: H04W36/00 ,  H04W88/06 ,  H04L5/14

Abstract: This application discloses various techniques for call establishment using voice-over LTE (VoLTE) in networks supporting time division (TD) and frequency division duplexed (FDD) LTE communication systems. Such techniques can include systems and methods for mobile-originated calls for a UE in a TD-LTE cell, systems and methods for mobile-terminated calls for a connected UE in a TD-LTE cell and systems and methods for mobile-terminated calls for an idle UE in a TD-LTE cell. These methods and systems can leverage component carriers from a carrier aggregating capable UE to facilitate more efficient and/or effective UE call establishment.

Abstract translation: 本申请公开了在支持时分（TD）和频分双工（FDD）LTE通信系统的网络中使用语音LTE（VoLTE）进行呼叫建立的各种技术。 这样的技术可以包括用于TD-LTE小区中用于UE的移动发起呼叫的系统和方法，用于TD-LTE小区中连接的UE的移动终端呼叫的系统和方法以及用于移动终止呼叫的方法 TD-LTE小区中的空闲UE。 这些方法和系统可以利用来自聚合能力的UE的载波的组件载波来促进更有效和/或有效的UE呼叫建立。

公开(公告)号：US20150092563A1

公开(公告)日：2015-04-02

申请号：US14502545

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Vinay R. Majjigi ,  Christian W. Mucke ,  Syed A. Mujtaba

IPC: H04W72/04 ,  H04L5/00 ,  H04W52/02 ,  H04W28/02

CPC classification number: H04W72/1289 ,  H04L5/0044 ,  H04L5/0053 ,  H04W28/0221 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

Abstract: The disclosure describes procedures for allocating network resources for a mobile device communicating within a Long Term Evolution (LTE) network. The mobile device can be configured to decode a physical downlink shared channel (PDSCH), acquire first and second physical downlink control channel (PDCCH) decode indicators from a payload of the same PDSCH communication, decode a PDCCH for downlink control information (DCI) associated with a first application data type based on the first PDCCH decode indicator a second application data type based on the second PDCCH decode indicator. The first PDCCH decode indicator can identify an upcoming LTE subframe where the mobile device is required to decode the PDCCH for DCI associated VoLTE resource assignments and the second PDCCH decode indicator can identify an upcoming LTE subframe where the mobile device is required to decode the PDCCH for DCI associated with high bandwidth best effort (BE) data resource assignments.

Abstract translation: 本公开描述了为在长期演进（LTE）网络内通信的移动设备分配网络资源的过程。 移动设备可以被配置为对物理下行链路共享信道（PDSCH）进行解码，从相同PDSCH通信的有效载荷获取第一和第二物理下行链路控制信道（PDCCH）解码指示符，对与下行链路控制信息（DCI）相关联的PDCCH进行解码 基于第一PDCCH解码指示符的第一应用数据类型，基于第二PDCCH解码指示符的第二应用数据类型。 第一PDCCH解码指示符可以识别即将到来的LTE子帧，其中移动设备需要解码用于DCI相关联的VoLTE资源分配的PDCCH，并且第二PDCCH解码指示符可以标识即将到来的LTE子帧，其中需要移动设备对PDCCH进行解码， 与高带宽尽力而为（BE）数据资源分配相关联的DCI。

公开(公告)号：US08831655B2

公开(公告)日：2014-09-09

申请号：US13969268

申请日：2013-08-16

Applicant: Apple Inc.

Inventor： William S. Burchill ,  Paul V. Flynn ,  Vinay R. Majjigi ,  Xiaowen Wang ,  Kee-Bong Song ,  Syed A. Mujtaba ,  Wen Zhao

IPC: H04B15/00 ,  H04W52/24 ,  H04W88/06 ,  H04W72/08

CPC classification number: H04W52/243 ,  H04B15/00 ,  H04L1/0002 ,  H04L1/20 ,  H04W16/14 ,  H04W72/082 ,  H04W76/16 ,  H04W88/06

Abstract: Methods and apparatus to mitigate interference among multiple wireless subsystems of a wireless communication device are described. A host processor obtains configurations for a plurality of wireless subsystems and evaluates whether potential or actual coexistence interference exists between two or more of the wireless subsystems. The host processor provides configuration information and link quality reporting parameters to and obtains link quality reports from at least two wireless subsystems. When link quality for at least one wireless subsystem fails a set of link quality conditions, the host processor adjusts data requirements for applications that communicate through one or more of the wireless subsystems and/or adjusts radio frequency operating conditions for one or more of the wireless subsystems to mitigate interference among the wireless subsystems.

Abstract translation: 描述了用于减轻无线通信设备的多个无线子系统之间的干扰的方法和装置。 主机处理器获得多个无线子系统的配置，并评估在两个或多个无线子系统之间是否存在潜在的或实际的共存干扰。 主机处理器向至少两个无线子系统提供配置信息和链路质量报告参数并从其获得链路质量报告。 当至少一个无线子系统的链路质量失败一组链路质量状况时，主处理器调整通过一个或多个无线子系统进行通信的应用的数据要求和/或调整无线一个或多个的无线电频率操作条件 子系统，以减轻无线子系统之间的干扰。

公开(公告)号：US20140126397A1

公开(公告)日：2014-05-08

申请号：US13855600

申请日：2013-04-02

Applicant: APPLE, INC.

Inventor： Christopher J. Hansen ,  Kee-Bong Song ,  Syed A. Mujtaba ,  Vinay R. Majjigi ,  Xiaowen Wang

IPC: H04W36/30

CPC classification number: H04W36/30 ,  H04W76/15

Abstract: In order to facilitate communication between an electronic device and another electronic device, the electronic device determines communication-quality metrics for a first connection in a wireless network based on received information from the other electronic device. Then, the electronic device calculates an overall communication-quality indicator for the first connection based on at least some of the communication-quality metrics. Moreover, the electronic device dynamically adapts the communication with the other electronic device based on the overall communication-quality indicator. For example, the electronic device may establish a second connection in a cellular-telephone network and may use the second connection to communicate with the other electronic device. Alternatively, the electronic device may provide the overall communication-quality indicator to the other electronic device and may at least partially transition the communication from the second connection in the cellular-telephone network to the first connection in the wireless network.

Abstract translation: 为了促进电子设备与另一电子设备之间的通信，电子设备基于来自另一电子设备的接收信息来确定无线网络中的第一连接的通信质量度量。 然后，电子设备基于至少一些通信质量度量来计算用于第一连接的总体通信质量指示符。 此外，电子设备基于总体通信质量指示符动态地适应与另一电子设备的通信。 例如，电子设备可以在蜂窝电话网络中建立第二连接，并且可以使用第二连接来与另一个电子设备进行通信。 或者，电子设备可以将整体通信质量指示符提供给另一电子设备，并且可以至少部分地将通信从蜂窝电话网络中的第二连接转移到无线网络中的第一连接。

公开(公告)号：US20140071844A1

公开(公告)日：2014-03-13

申请号：US14018179

申请日：2013-09-04

Applicant: Apple Inc.

Inventor： Syed A. Mujtaba ,  Kee-Bong Song ,  Youngjae Kim

IPC: H04W52/02

CPC classification number: H04W52/028 ,  H04W52/0245 ,  H04W52/241 ,  H04W52/243 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

Abstract: In order to reduce power consumption of an electronic device during wireless communication, the electronic device may transition between a baseline (simple) receiver and a higher-power advanced receiver based on network conditions and/or environmental conditions. For example, the transition to the advanced receiver may occur when it offers improved communication performance over the baseline receiver, such as when there is significant interference and a high data rate, or when there is significant interference and a signal-to-noise ratio (SNR) is low. Similarly, the transition to the baseline receiver may occur when the capabilities of the advanced receiver are not needed, such as when there is less interference, or when the data rate is lower and the SNR is high. In this way, the electronic device can avoid the added power consumption associated with the advanced receiver except where the communication performance offered by the advanced receiver is needed.

Abstract translation: 为了在无线通信期间降低电子设备的功耗，电子设备可以基于网络条件和/或环境条件在基线（简单）接收机和较高功率的高级接收机之间转换。 例如，当高级接收机提供比基线接收机更好的通信性能时，例如当存在显着干扰和高数据速率时，或者当存在显着的干扰和信噪比（例如， SNR）低。 类似地，当不需要高级接收机的能力时，例如当干扰较小或数据速率较低且SNR高时，可能会发生向基线接收机的转换。 以这种方式，除了需要高级接收机提供的通信性能之外，电子设备可以避免与高级接收机相关联的附加功率消耗。