公开(公告)号：US20170006549A1

公开(公告)日：2017-01-05

申请号：US15266476

申请日：2016-09-15

Applicant: Apple Inc.

Inventor： Giri Prassad Deivasigamani ,  Gaurav Nukala ,  Srinivasan Vasudevan

IPC: H04W52/02 ,  H04W68/00 ,  H04W76/04

CPC classification number: H04W52/0254 ,  H04M2250/10 ,  H04W52/0245 ,  H04W52/0251 ,  H04W52/028 ,  H04W68/005 ,  H04W76/27 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/23 ,  Y02D70/24

Abstract: Methods and apparatus for power optimization in e.g., a wireless mobile device. In one embodiment, the optimization is effected via intelligent idle mode current drain management. In an exemplary LTE cellular network context, the user equipment (UE) only powers on its transceiver for a subset of Discontinuous Reception (DRX) cycles based on e.g., the quality of the radio environment, power considerations, location, etc. For example, if a UE has not moved, and its radio reception quality is good, the UE is likely to successfully receive a paging notification (i.e., without multiple attempts). Consequently, the UE configures itself to receive only a single paging indication.

Abstract translation: 用于例如无线移动设备中的功率优化的方法和装置。 在一个实施例中，通过智能空闲模式电流漏极管理实现优化。 在示例性LTE蜂窝网络环境中，用户设备（UE）仅基于例如无线电环境的质量，功率因素，位置等来为其不连续接收（DRX）周期的子集为其收发机供电。例如， 如果UE没有移动，并且其无线电接收质量良好，则UE很可能成功地接收寻呼通知（即，没有多次尝试）。 因此，UE配置自身仅接收单个寻呼指示。

公开(公告)号：US09474029B2

公开(公告)日：2016-10-18

申请号：US14692911

申请日：2015-04-22

Applicant: Apple Inc.

Inventor： Giri Prassad Deivasigamani ,  Gaurav Nukala ,  Srinivasan Vasudevan

IPC: H04W52/02

CPC classification number: H04W52/0254 ,  H04M2250/10 ,  H04W52/0245 ,  H04W52/0251 ,  H04W52/028 ,  H04W68/005 ,  H04W76/27 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/23 ,  Y02D70/24

Abstract: Methods and apparatus for power optimization in e.g., a wireless mobile device. In one embodiment, the optimization is effected via intelligent idle mode current drain management. In an exemplary LTE cellular network context, the user equipment (UE) only powers on its transceiver for a subset of Discontinuous Reception (DRX) cycles based on e.g., the quality of the radio environment, power considerations, location, etc. For example, if a UE has not moved, and its radio reception quality is good, the UE is likely to successfully receive a paging notification (i.e., without multiple attempts). Consequently, the UE configures itself to receive only a single paging indication.

公开(公告)号：US09577846B2

公开(公告)日：2017-02-21

申请号：US14194496

申请日：2014-02-28

Applicant: Apple Inc.

Inventor： Navid Damji ,  Zhu Ji ,  Johnson O. Sebeni ,  Gaurav Nukala ,  Srinivasan Vasudevan

IPC: H04B17/00 ,  H04W4/06 ,  H04L25/02 ,  H04B17/309

CPC classification number: H04L25/0226 ,  H04B17/309 ,  H04L25/0204 ,  H04W4/06

Abstract: Apparatus and methods for channel estimation in a Multimedia Broadcast Multicast Service (MBMS) Single Frequency Network (MBSFN) are disclosed. A representative method includes a wireless communication device receiving multiple frames, each frame including multiple subframes, each subframe including multiple symbols. The wireless communication device determines whether subframes include MBMS data or not. For subframes that include MBMS data, the wireless communication device excludes all or certain symbols of the subframes that include MBMS data from a channel estimation process. The wireless communication device determines whether the subframes include MBMS data based at least in part on a channel impulse response and/or a channel energy response for one or more symbols of the subframes.

Abstract translation: 公开了多媒体广播组播业务（MBMS）单频网（MBSFN）中信道估计的装置和方法。 代表性的方法包括接收多个帧的无线通信设备，每个帧包括多个子帧，每个子帧包括多个符号。 无线通信设备确定子帧是否包括MBMS数据。 对于包括MBMS数据的子帧，无线通信设备从信道估计处理中排除包括MBMS数据的子帧的全部或某些符号。 所述无线通信设备至少部分地基于所述子帧的一个或多个符号的信道脉冲响应和/或信道能量响应来确定所述子帧是否包括MBMS数据。

公开(公告)号：US20140241232A1

公开(公告)日：2014-08-28

申请号：US14194496

申请日：2014-02-28

Applicant: Apple Inc.

Inventor： Navid Damji ,  Zhu Ji ,  Johnson O. Sebeni ,  Gaurav Nukala ,  Srinivasan Vasudevan

IPC: H04L25/02 ,  H04W4/06

CPC classification number: H04L25/0226 ,  H04B17/309 ,  H04L25/0204 ,  H04W4/06

Abstract: Apparatus and methods for channel estimation in a Multimedia Broadcast Multicast Service (MBMS) Single Frequency Network (MBSFN) are disclosed. A representative method includes a wireless communication device receiving multiple frames, each frame including multiple subframes, each subframe including multiple symbols. The wireless communication device determines whether subframes include MBMS data or not. For subframes that include MBMS data, the wireless communication device excludes all or certain symbols of the subframes that include MBMS data from a channel estimation process. The wireless communication device determines whether the subframes include MBMS data based at least in part on a channel impulse response and/or a channel energy response for one or more symbols of the subframes.

Abstract translation: 公开了多媒体广播组播业务（MBMS）单频网（MBSFN）中信道估计的装置和方法。 代表性的方法包括接收多个帧的无线通信设备，每个帧包括多个子帧，每个子帧包括多个符号。 无线通信设备确定子帧是否包括MBMS数据。 对于包括MBMS数据的子帧，无线通信设备从信道估计处理中排除包括MBMS数据的子帧的全部或某些符号。 所述无线通信设备至少部分地基于所述子帧的一个或多个符号的信道脉冲响应和/或信道能量响应来确定所述子帧是否包括MBMS数据。

公开(公告)号：US20140064253A1

公开(公告)日：2014-03-06

申请号：US13830935

申请日：2013-03-14

Applicant: APPLE INC.

Inventor： Giri Prassad Deivasigamani ,  Gaurav Nukala ,  Muhammad A. Alam

IPC: H04W36/30

CPC classification number: H04W36/0083 ,  H04W24/08 ,  H04W36/0088 ,  H04W36/30 ,  Y02B70/30 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264

Abstract: A method for reducing call drops in uplink power limited scenarios is disclosed. The method can include a wireless communication device determining that the wireless communication device is experiencing an uplink power limited condition in which a transmission power of the wireless communication device is limited to a level below a power class level of the wireless communication device. The method can further include defining a downlink power threshold for sending a measurement report for triggering a handover based on the uplink power limited condition. The downlink power threshold can be higher than a threshold configured by a serving base station. The method can additionally include determining based on measured downlink power that the calculated downlink power threshold is satisfied and sending a measurement report for triggering a handover to the serving base station in response to the downlink power threshold being satisfied.

Abstract translation: 公开了一种用于减少上行链路功率限制情况中的呼叫丢弃的方法。 该方法可以包括无线通信设备，其确定无线通信设备正在经历其中无线通信设备的发送功率被限制在低于无线通信设备的功率等级水平的水平的上行链路功率限制条件。 该方法还可以包括定义下行链路功率阈值，用于基于上行链路功率限制条件发送用于触发切换的测量报告。 下行链路功率阈值可以高于由服务基站配置的阈值。 该方法还可以包括基于所测量的下行链路功率确定所计算的下行链路功率阈值被满足，并且响应于满足下行链路功率阈值而发送用于触发切换到服务基站的测量报告。