公开(公告)号：US20180092007A1

公开(公告)日：2018-03-29

申请号：US15691349

申请日：2017-08-30

Applicant: Apple Inc.

Inventor： Ozgur Ekici ,  Jianxiong Shi ,  Li Su ,  Sachin J. Sane ,  Sai Sravan Bharadwaj Karri

IPC: H04W36/00 ,  H04W52/40 ,  H04W52/02

CPC classification number: H04W36/0066 ,  H04B17/318 ,  H04W36/0072 ,  H04W36/0094 ,  H04W48/18 ,  H04W52/0212 ,  H04W52/245 ,  H04W52/367 ,  H04W52/40 ,  H04W88/06

Abstract: According to techniques described herein, a UE (which may be link budget limited) may be connected to a network using a first RAT. The UE may be configured to determine a first resource requirement for communication on the network using the first RAT and a second resource requirement for communication on the network using a second RAT. The UE may be further configured to trigger a re-selection to the second RAT in response to the UE determining that the second RAT is preferred over the first RAT based, at least in part, on a comparison of the first and second resource requirements.

公开(公告)号：US20180026777A1

公开(公告)日：2018-01-25

申请号：US15495010

申请日：2017-04-24

Applicant: Apple Inc.

Inventor： Li Su ,  William J. Noellert

IPC: H04L5/16 ,  H04W72/04 ,  H04B17/309

CPC classification number: H04L5/16 ,  H04B1/3833 ,  H04B17/309 ,  H04L5/14 ,  H04W72/0446

Abstract: A user equipment (UE) comprises a radio having TX and RX paths that include a duplexer, thus facilitating a full-duplex mode. The radio may also have TX and RX paths that exclude the duplexer, and which thus facilitate a half-duplex mode. The UE may be configured to autonomously and opportunistically switch from the full-duplex mode (the paths that include the duplexer) to the half-duplex mode (the paths that exclude the duplexer) when the UE desires to avoid the path loss caused by the duplexer, e.g., to temporarily receive with greater sensitivity and/or transmit with more power, during poor channel conditions. At other times the UE may autonomously decide to remain in full-duplex mode to achieve reduced transmission time, e.g., during time-critical communications such as VoLTE. The UE may autonomously determine whether to use full or half-duplex mode, i.e., without requiring any coordination with network-side devices.

公开(公告)号：US09838192B2

公开(公告)日：2017-12-05

申请号：US14501814

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Wanping Zhang ,  Li Su ,  Yingjie Zhao

IPC: H04L5/00 ,  H04W76/06 ,  H04W76/02 ,  H04W72/12 ,  H04W88/02

CPC classification number: H04L5/0098 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0085 ,  H04W88/02

Abstract: This disclosure relates to management of a secondary component carrier by a wireless device when using carrier aggregation. According to one embodiment, a primary component carrier for communication between a base station and a wireless device may be configured according to a first wireless communication technology. A secondary component carrier may also be configured. The wireless device may detect a trigger condition to deactivate the secondary component carrier. In response, the wireless device may modify its feedback to the base station with respect to channel conditions for the secondary component carrier to cause the base station to deactivate the secondary component carrier.

公开(公告)号：US09813989B2

公开(公告)日：2017-11-07

申请号：US15009992

申请日：2016-01-29

Applicant: Apple Inc.

Inventor： Li Su ,  Jianxiong Shi

IPC: H04W4/00 ,  H04W52/02 ,  H04W36/36 ,  H04W36/38 ,  H04W8/18

CPC classification number: H04W52/0229 ,  H04W8/18 ,  H04W36/365 ,  H04W36/38 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/26

Abstract: Techniques are disclosed relating to reducing power consumption in dual-SIM devices. In some embodiments, a UE includes at least two SIMs, including a home SIM and a configurable SIM. In this embodiment, the UE is configured to register, using a first protocol stack, the configurable SIM with a local network. In these embodiments, the UE is configured to determine if the local network is an available network for the home SIM. In these embodiments, the UE is configured to register, using the first protocol stack, the home SIM with the local network in response to determining that the local network is an available network for the home SIM. In these embodiments, the UE is configured to monitor, using the first protocol stack, for pages for each of the home SIM using the identifier of the home SIM and the configurable SIM using the identifier of the configurable SIM.

公开(公告)号：US09749986B2

公开(公告)日：2017-08-29

申请号：US14830325

申请日：2015-08-19

Applicant: Apple Inc.

Inventor： Li Su ,  Stephan V. Schell

IPC: H04W68/00 ,  H04W72/04 ,  H04W76/04 ,  H04W68/02

CPC classification number: H04W68/005 ,  H04W64/003 ,  H04W68/02 ,  H04W72/0446 ,  H04W72/048 ,  H04W76/28

Abstract: Various mechanisms for paging link-budget-limited (LBL) devices are disclosed, including: (1) transmitting paging message with non-conventional paging identifier; (2) transmitting paging message(s) with increased power; (3) repeating transmission of paging message to support combining at receiver. Various mechanisms for UE device to signal LBL status are disclosed, including, transmitting status flag or special value of DRX cycle to network node as part of tracking area update and/or attach request. The network node informs a base station of the device's LBL status as part of a paging message. (The network node may, e.g., assign an S-RNTI to the LBL device from a reserved subset of S-RNTI space.) The base station invokes a paging enhancement mechanism when paging an LBL device. Alternatively, the base station may page UE devices without knowledge of LBL status, e.g., by counting paging attempts for a given UE, and boosting power after the Nth paging attempt.

公开(公告)号：US09655068B2

公开(公告)日：2017-05-16

申请号：US14604289

申请日：2015-01-23

Applicant: APPLE INC.

Inventor： Yingjie Zhao ,  Li Su ,  Wanping Zhang ,  Sreevalsan Vallath

IPC: H04W52/12 ,  H04W52/40 ,  H04W52/50 ,  H04W52/24

CPC classification number: H04W52/50 ,  H04W52/12 ,  H04W52/242

Abstract: A user equipment and a method performed by the user equipment. The user equipment includes a transceiver configured to enable the user equipment to establish a connection with a first network and a second network, the first network configured to provide signals to control a transmit power of the transceiver and a processor configured to control the transmit power of the transceiver. The processor controls the transmit power by determining at least one network operation of the user equipment, the network operation associated with a configuration of the connection with the LTE network, receiving a signal from the LTE network indicating an increase in the transmit power to be used and performing a power operation that adjusts the transmit power of the transceiver less than the increase indicated in the signal.

公开(公告)号：US09591614B2

公开(公告)日：2017-03-07

申请号：US14685546

申请日：2015-04-13

Applicant: Apple Inc.

Inventor： Jianxiong Shi ,  Madhusudan Chaudhary ,  Li Su ,  Isabel Mahe

IPC: H04W68/02 ,  H04W72/12 ,  H04W92/04

CPC classification number: H04W68/02 ,  H04W72/1215 ,  H04W72/1226 ,  H04W92/04

Abstract: Methods and apparatus for intelligent scheduling of client device tasks based on one or more network scheduling constraints. During normal network operation, a client device performs an array of scheduled maintenance tasks to optimize network performance (e.g., signal strength measurements, etc.) However, during hybrid network operation, regularly scheduled maintenance tasks for a first network can interrupt higher priority tasks on other networks. Consequently, the present invention in one embodiment provides a method for a client device to properly prioritize and re-schedule maintenance tasks. For example, CDMA 1X cell selection (or cell re-selection) procedures have flexible time constraints, and can be postponed (or expedited) to minimize impact on LTE network traffic.

Abstract translation: 基于一个或多个网络调度约束的客户端设备任务的智能调度的方法和装置。 在正常的网络运行期间，客户端设备执行计划维护任务的阵列以优化网络性能（例如，信号强度测量等）。但是，在混合网络运行期间，第一个网络的定期维护任务可以中断较高优先级的任务 其他网络。 因此，本发明在一个实施例中提供了一种用于客户端设备适当地确定优先级并重新安排维护任务的方法。 例如，CDMA 1X小区选择（或小区重选）过程具有灵活的时间约束，并且可以推迟（或加速）以最小化对LTE网络流量的影响。

公开(公告)号：US09591572B2

公开(公告)日：2017-03-07

申请号：US14604246

申请日：2015-01-23

Applicant: APPLE INC.

Inventor： Yingjie Zhao ,  Li Su ,  Sreevalsan Vallath ,  Wanping Zhang

IPC: H04W52/02 ,  H04W72/14 ,  H04L1/00 ,  H04W76/00 ,  H04W72/04

CPC classification number: H04W52/0225 ,  H04L1/00 ,  H04L1/1854 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0274 ,  H04W72/042 ,  H04W76/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/23 ,  Y02D70/24

Abstract: A user equipment (UE) and corresponding methods to conserve power by the UE. The UE includes a transceiver, the transceiver configured to enable the UE to establish a connection with a Long Term Evolution (LTE) network and configured to operate using a Connected Discontinuous Reception (CDRX) functionality. The processor controls the transceiver by receiving an uplink (UL) grant at a first subframe of a frame of a cycle of the CDRX functionality, transmitting data based upon the UL grant at a predetermined second subframe, and receiving a response from the LTE network corresponding to one of an acknowledgement (ACK) and a negative ACK (NACK) at a predetermined third subframe. The processor deactivates the transmitter for a remainder of the frame based or deactivates a receiver for a remainder of the frame based upon whether the ACK is received.

Abstract translation: 用户设备（UE）和相应的方法来节省UE的功率。 所述UE包括收发器，所述收发器被配置为使所述UE能够与长期演进（LTE）网络建立连接并且被配置为使用连接的不连续接收（CDRX）功能进行操作。 处理器通过在CDRX功能的周期的帧的第一子帧处接收上行链路（UL）许可来控制收发器，基于在预定的第二子帧处的UL许可发送数据，并且从LTE网络接收对应的响应 到预定的第三子帧的确认（ACK）和否定ACK（NACK）中的一个。 处理器基于帧的剩余部分去激活发射机，或者基于是否接收到ACK来停用帧的剩余部分的接收机。

公开(公告)号：US09560538B2

公开(公告)日：2017-01-31

申请号：US15174623

申请日：2016-06-06

Applicant: Apple Inc.

Inventor： Li Su ,  Srinivasan Nimmala

IPC: H04W24/00 ,  H04W24/08 ,  H04W72/12 ,  H04W74/08 ,  H04W76/02 ,  H04W76/04

CPC classification number: H04W24/08 ,  H04W72/1284 ,  H04W74/0833 ,  H04W76/19 ,  H04W76/27

Abstract: Methods, apparatuses and computer readable media are described that determine a connection state between a mobile wireless device and a wireless network upon detection of an interruption of a connection between the mobile wireless device and the wireless network. The mobile wireless device transmits an uplink resource allocation message to the wireless network, and when receiving no response to the uplink resource allocation message, transmits a random access message to the wireless network. When receiving no response from the wireless network to the random access message, the mobile wireless device executes a radio link failure procedure. In an embodiment, the uplink resource allocation message includes a unique identifier for an existing radio resource control connection between the mobile wireless device and the wireless network.

Abstract translation: 描述了在检测到移动无线设备和无线网络之间的连接的中断时确定移动无线设备和无线网络之间的连接状态的方法，设备和计算机可读介质。 移动无线设备向无线网络发送上行链路资源分配消息，当对上行链路资源分配消息没有响应时，向无线网络发送随机接入消息。 当从无线网络不接收到随机接入消息的响应时，移动无线设备执行无线链路故障过程。 在一个实施例中，上行链路资源分配消息包括用于移动无线设备和无线网络之间的现有无线电资源控制连接的唯一标识符。

公开(公告)号：US20170026941A1

公开(公告)日：2017-01-26

申请号：US15191574

申请日：2016-06-24

Applicant: Apple Inc.

Inventor： Li Su ,  Jianxiong Shi ,  Sami M. Almalfouh

IPC: H04W72/04 ,  H04L1/00

CPC classification number: H04L1/0038 ,  H04L1/0046 ,  H04L1/0072 ,  H04L5/00

Abstract: A wireless communication device (UE) may reliably decode control information during wireless cellular communications. The UE may decode the Physical Control Format Indicator Channel (PCFICH) for a given wireless network, and if the decode is unsuccessful, the UE may perform a blind decode of the PCFICH. The UE may decode, for the network, a Physical Downlink Control Channel (PDCCH) for a current subframe using a specified control format indicator (CFI) value. If the decode of the PDCCH is successful, the UE may communicate over the NW, using the specified CFI value. If the decode for the current subframe is unsuccessful, the UE may decode the PDCCH for a different next subframe using a different CFI value until the PDCCH for the NW has been successfully decoded. The CFI value may be specified based at least on common signaling present in certain subframes received by the UE.

Abstract translation: 无线通信设备（UE）可以在无线蜂窝通信期间可靠地解码控制信息。 UE可以解码用于给定无线网络的物理控制格式指示符信道（PCFICH），并且如果解码不成功，则UE可以执行PCFICH的盲解码。 UE可以使用指定的控制格式指示符（CFI）值为网络解码当前子帧的物理下行链路控制信道（PDCCH）。 如果PDCCH的解码成功，则UE可以使用指定的CFI值通过NW进行通信。 如果当前子帧的解码不成功，则UE可以使用不同的CFI值对不同下一个子帧的PDCCH进行解码，直到NW的PDCCH已被成功解码。 可以至少基于由UE接收的某些子帧中存在的公共信令来指定CFI值。