公开(公告)号：US20160021557A1

公开(公告)日：2016-01-21

申请号：US14870266

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Sarma V. Vangala ,  Samy Khay-Ibbat ,  Swaminathan Balakrishnan ,  Ajoy K. Singh ,  Sree Ram Kodali ,  Rafael L. Rivera-Barreto ,  Syed Aon Mujtaba ,  Faraz Faheem ,  Sreevalsan Vallath

IPC: H04W24/08 ,  H04W36/04 ,  H04W72/08

CPC classification number: H04W24/08 ,  H04L43/0888 ,  H04L43/16 ,  H04W28/0236 ,  H04W28/0284 ,  H04W28/08 ,  H04W36/04 ,  H04W72/0486 ,  H04W72/085 ,  H04W88/02

Abstract: Estimating loading and potential available throughput a serving cell of a wireless user equipment (UE) device. Physical layer metrics of a channel on which the UE communicates with the serving cell may be measured. Cell utilization of the serving cell may be calculated based at least in part on the measured physical layer metrics. A maximum available throughput of the serving cell may be calculated based on the cell utilization.

公开(公告)号：US20160007240A1

公开(公告)日：2016-01-07

申请号：US14791687

申请日：2015-07-06

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  David Boettger ,  Krisztian Kiss ,  Dawei Zhang ,  Tarik Tabet ,  Rafael L. Rivera-Barreto ,  Huarui Liang

IPC: H04W36/00 ,  H04W48/16 ,  H04W36/14 ,  H04W76/04

CPC classification number: H04W36/0022 ,  H04W36/0083 ,  H04W36/14 ,  H04W48/16 ,  H04W48/18 ,  H04W76/27 ,  H04W88/06

Abstract: Mobile devices, base stations, and/or relay stations may implement CSFB (circuit switched fallback) operations by using RRC (radio resource control) connection release and/or handover procedures. If the CSFB RAT (radio access technology) target is not well configured, the UE may be informed and provisioned by the NW during a CSFB procedure with the information to return to LTE. Having this information, the UE may perform an autonomous search of LTE cells after the CSFB call release, speeding up return to LTE. To minimize potential call failures during CSFB, the UE may autonomously perform an additional cell search, in particular a search for cells on a RAT different from the initial target RAT. This creates an opportunity to prevent call failure of CSFB calls that would otherwise fail. The UE may be provisioned during the CSFB procedure with information to perform the additional cell search, should such a search be necessary.

Abstract translation: 移动设备，基站和/或中继站可以通过使用RRC（无线电资源控制）连接释放和/或切换过程来实现CSFB（电路交换回退）操作。 如果CSFB RAT（无线电接入技术）目标没有被很好地配置，则在CSFB过程期间可以通过NW向UE通知和提供UE返回到LTE的信息。 具有这种信息，UE可以在CSFB呼叫释放之后执行LTE小区的自主搜索，加速返回到LTE。 为了最小化CSFB期间的潜在呼叫失败，UE可以自主地执行附加小区搜索，特别是搜索与初始目标RAT不同的RAT上的小区。 这将创造一个机会来防止否则会失败的CSFB呼叫的呼叫失败。 如果需要这样的搜索，则可以在CSFB过程期间为UE提供执行附加小区搜索的信息。

公开(公告)号：US09173126B2

公开(公告)日：2015-10-27

申请号：US14568631

申请日：2014-12-12

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Navid Damji ,  Kee-bong Song ,  Syed Aon Mujtaba ,  Youngjae Kim ,  Johnson O. Sebeni ,  Yuchul Kim

IPC: H04W24/10 ,  H04W76/02 ,  H04W72/12 ,  H04L12/801 ,  H04L12/26 ,  H04W72/08

CPC classification number: H04W24/10 ,  H04L1/0003 ,  H04L1/0026 ,  H04L43/0823 ,  H04L47/10 ,  H04W72/085 ,  H04W72/1231 ,  H04W72/1284

Abstract: Manipulating modulation and coding scheme (MCS) allocation after a communication interruption. A UE device may resume communications with a BS after a communication interruption. Channel quality information may be generated and transmitted to the BS. The channel quality information may be based on channel quality measurements, and may also be based on an offset configured manipulate an MCS allocation by the BS based on determining that the interruption to communication between the UE and the BS has occurred.

Abstract translation: 在通信中断后操纵调制和编码方案（MCS）分配。 在通信中断之后，UE设备可以恢复与BS的通信。 可以生成信道质量信息并将其发送到BS。 信道质量信息可以基于信道质量测量，并且还可以基于配置来基于BS来基于确定UE和BS之间的通信的中断已经发生而由BS操纵MCS分配的偏移。

公开(公告)号：US20150222414A1

公开(公告)日：2015-08-06

申请号：US14496949

申请日：2014-09-25

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  S. Aon Mujtaba ,  Dawei Zhang

IPC: H04L7/00 ,  H04L12/26

Abstract: This disclosure relates to using a dedicated reference subframes in a cellular communication system. According to one embodiment, a base station may transmit reference signals in a dedicated synchronization and measurement reference subframe. Neighboring base stations may also transmit reference signals in dedicated reference subframes in a temporally coordinated (synchronized) manner. The reference signals transmitted be each base station may be orthogonal with the reference signals transmitted by each neighboring base station. The reference subframes may be transmitted periodically, and data subframes may be transmitted between reference subframes. Some or all of the data subframes may not include cell-specific reference symbols, as their function may be unnecessary given the use of the dedicated reference subframes.

Abstract translation: 本公开涉及在蜂窝通信系统中使用专用参考子帧。 根据一个实施例，基站可以在专用同步和测量参考子帧中发送参考信号。 相邻基站还可以以时间协调（同步）的方式在专用参考子帧中发送参考信号。 每个基站发送的参考信号可以与每个相邻基站发送的参考信号正交。 可以周期性地发送参考子帧，并且可以在参考子帧之间传送数据子帧。 数据子帧中的一些或全部可能不包括小区特定的参考符号，因为在使用专用参考子帧的情况下，它们的功能可能是不必要的。

公开(公告)号：US20150173009A1

公开(公告)日：2015-06-18

申请号：US14536371

申请日：2014-11-07

Applicant: APPLE INC.

Inventor： Sreevalsan Vallath ,  Deepankar Bhattacharjee ,  Navid Damji ,  Christian W. Mucke ,  Rafael L. Rivera-Barreto ,  Tarik Tabet

IPC: H04W48/18

CPC classification number: H04W48/18 ,  H04L5/001 ,  H04W48/20

Abstract: Systems and methods that enhance radio link performance in a multi-carrier environment. A method may be performed by a UE that includes scanning a plurality of carrier components for a primary cell, determining a first bandwidth of the primary cell, scanning for a secondary cell, determining a second bandwidth of the secondary cell, determining a maximum aggregated bandwidth by combining the first bandwidth and the second bandwidth and when the maximum aggregated bandwidth exceeds a bandwidth capability of the UE, performing a cell selection procedure to select one of the primary cell or the secondary cell based on a higher of the first bandwidth and the second bandwidth.

Abstract translation: 在多载波环境中增强无线电链路性能的系统和方法。 一种方法可以由UE执行，该UE包括扫描主小区的多个载波分量，确定主小区的第一带宽，二次小区的扫描，确定次小区的第二带宽，确定最大聚合带宽 通过组合第一带宽和第二带宽，并且当最大聚合带宽超过UE的带宽能力时，执行小区选择过程以基于第一带宽和第二带宽中的较高者选择主小区或辅小区中的一个 带宽。

公开(公告)号：US20150172987A1

公开(公告)日：2015-06-18

申请号：US14503220

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Swaminathan Balakrishnan ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Tarik Tabet ,  Rafael L. Rivera-Barreto ,  Sree Ram Kodali ,  Sai Sravan Bharadwaj Karri

IPC: H04W36/24

CPC classification number: H04W36/24 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0098 ,  H04W36/0088 ,  H04W36/06

Abstract: A user equipment (UE) configured to connect to a network and operate in a carrier aggregation mode and a single carrier mode performs methods to select optimal component carriers. The methods include determining that a primary component carrier is operating less optimally than a secondary component carrier, sending an indication to the network that the primary component carrier is operating less optimally than the secondary component carrier, acquiring the secondary component carrier as a target primary component carrier and operating with the secondary component carrier as the target primary carrier component. In one exemplary embodiment, the indication is declaring a radio link failure (“RLF”) between the UE and the network. In another exemplary embodiment, the indication is a measurement report send to the network that triggers a handover procedure for the UE.

Abstract translation: 被配置为连接到网络并以载波聚合模式和单载波模式操作的用户设备（UE）执行选择最佳分量载波的方法。 所述方法包括确定主要分量载波的操作不如次要分量载波最佳地运行，向网络发送指示主分量载波运行的次要分量载波最不利地获得辅助分量载波作为目标主分量 载体并以辅助成分载体作为目标主载体成分进行操作。 在一个示例性实施例中，该指示声明UE和网络之间的无线电链路故障（“RLF”）。 在另一示例性实施例中，该指示是向网络发送触发UE的切换过程的测量报告。

公开(公告)号：US20150156695A1

公开(公告)日：2015-06-04

申请号：US14503269

申请日：2014-09-30

Applicant: APPLE INC.

Inventor： Dawei Zhang ,  Tarik Tabet

IPC: H04W36/30 ,  H04W24/08

CPC classification number: H04W36/30 ,  H04L5/001 ,  H04L5/006 ,  H04L5/0098 ,  H04W24/08 ,  H04W24/10 ,  H04W36/38 ,  H04W72/0426 ,  H04W72/085 ,  H04W84/042

Abstract: A system and methods that are performed by a macro cell and a user equipment (UE) to implement a carrier aggregation mode in a network. The system includes a macrocell including a first coverage area and a plurality of small cells, each of the small cells including a second coverage area wherein the plurality of second coverage areas substantially cover the first coverage area. The macro cell operates a first component carrier as a primary component carrier in a carrier aggregation enabled network and one of the small cells operates a second component carrier as a secondary component carrier in the carrier aggregation enabled network.

Abstract translation: 由宏小区和用户设备（UE）在网络中实现载波聚合模式执行的系统和方法。 该系统包括包括第一覆盖区域和多个小小区的宏小区，每个小小区包括第二覆盖区域，其中多个第二覆盖区域基本上覆盖第一覆盖区域。 宏小区在支持载波聚合的网络中操作第一分量载波作为主要分量载波，并且小型小区中的一个在支持载波聚合的网络中操作第二分量载波作为次分量载波。

公开(公告)号：US20150156693A1

公开(公告)日：2015-06-04

申请号：US14095292

申请日：2013-12-03

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Ajoy K. Singh ,  Dawei Zhang

IPC: H04W36/30 ,  H04W72/04

CPC classification number: H04W36/30 ,  H04L5/001 ,  H04L5/0053 ,  H04W72/04 ,  H04W72/0406 ,  H04W76/14

Abstract: Device-to-device (D2D) communications in conjunction with carrier aggregation. A base station (BS) may coordinate D2D communication between two wireless user equipment (UE) devices. A primary cell may be configured for communicating with each of the UEs. A secondary cell may be configured for D2D communication between the two UEs. The primary cell and the secondary cell may utilize different component carriers. Additionally, cross-carrier scheduling may be used, such that at least some control information for the secondary cell is communicated via the primary cell.

Abstract translation: 与载波聚合相结合的设备到设备（D2D）通信。 基站（BS）可以协调两个无线用户设备（UE）设备之间的D2D通信。 主单元可以被配置为与每个UE进行通信。 二级小区可以被配置用于两个UE之间的D2D通信。 主电池和二次电池可以利用不同的分量载流子。 此外，可以使用跨载波调度，使得至少一些用于辅助小区的控制信息经由主小区传送。

公开(公告)号：US20150156635A1

公开(公告)日：2015-06-04

申请号：US14094327

申请日：2013-12-02

Applicant: APPLE INC.

Inventor： Huarui Liang ,  Tarik Tabet ,  Dawei Zhang

IPC: H04W16/14 ,  H04W48/16 ,  H04W36/00 ,  H04W28/04

CPC classification number: H04L5/0032 ,  H04J11/0093 ,  H04L5/001 ,  H04L5/0098 ,  H04L27/0006 ,  H04L41/12 ,  H04W16/14 ,  H04W28/04 ,  H04W36/0061 ,  H04W48/16 ,  H04W72/0413 ,  H04W72/085

Abstract: Described herein are systems and methods for carrier aggregation deployment and organization in unlicensed bands. A method may comprise scanning, by a transceiver within a base station, channels in a band of interest, reporting, by the transceiver, signal measurement information to the base station, cell searching, by the transceiver, channels in the band of interest, determining channel information for neighboring each channel, and transmitting, by the transceiver, the channel information to the base station.

Abstract translation: 这里描述了用于在未许可频带中的载波聚合部署和组织的系统和方法。 一种方法可以包括通过基站内的收发信机扫描感兴趣的频带中的信道，由收发信机向基站报告信号测量信息，由收发信机搜索感兴趣频带中的信道，确定 用于相邻每个信道的信道信息，并且由收发器将信道信息发送到基站。

公开(公告)号：US20150095955A1

公开(公告)日：2015-04-02

申请号：US14041912

申请日：2013-09-30

Applicant: Apple Inc.

Inventor： Ajoy K. Singh ,  Tarik Tabet ,  Wen Zhao ,  Najeeb M. Abdulrahiman

IPC: H04N21/44 ,  H04N21/61 ,  H04N21/462

CPC classification number: H04N21/44004 ,  H04N21/4622 ,  H04N21/6131 ,  H04N21/6405 ,  H04N21/6408

Abstract: An electronic device uses one antenna to wirelessly communicate information with two different wireless networks via concurrent connections associated with different radio access technologies. More specifically, the electronic device may receive video via a first of the connections using a multicast communication protocol. In order to maintain the second connection, the electronic device may switch, for a time interval, from the first connection to the second connection during switching events. This switching can disrupt displayed content associated with the video. To prevent this disruption, in response to a trigger that warns of an upcoming switching event, the electronic device accesses a portion of the video in a buffer during the time interval associated with the switching event. When the communication circuit switches back to the first connection after the switching event, the electronic device reverts to the video communication using the multicast communication protocol.

Abstract translation: 电子设备使用一个天线通过与不同的无线电接入技术相关联的并发连接来与两个不同的无线网络无线地传送信息。 更具体地，电子设备可以经由使用多播通信协议的第一连接来接收视频。 为了保持第二连接，电子设备可以在切换事件期间从一开始的第一连接切换到第二连接。 此切换可能会中断与视频相关的显示内容。 为了防止这种中断，响应于警告即将到来的切换事件的触发器，电子设备在与切换事件相关联的时间间隔期间在缓冲器中访问视频的一部分。 当通信电路在切换事件之后切换回第一连接时，电子设备使用组播通信协议恢复到视频通信。