公开(公告)号：US20140247811A1

公开(公告)日：2014-09-04

申请号：US14195681

申请日：2014-03-03

Applicant: Apple Inc.

Inventor： Ajoy K. Singh ,  Tarik Tabet ,  Wen Zhao ,  S. Aon Mujtaba ,  Christian W. Mucke

IPC: H04W36/32

CPC classification number: H04W36/32 ,  H04W36/0033

Abstract: A wireless communication system is presented for robust mobility management in a HetNet communication system. A source cell can prepare a macro cell and a target small cell as handover candidates during handover decision making and/or preparation. The mobile device is informed about the prepared macro cell and target small cell using radio resource control (RRC) messaging. After receiving a handover command or detecting radio frequency (RF) loss, the mobile device can try to connect with the target small cell. If the mobile device is unable to connect to the target small cell, the UE can fall back and connect to the macro cell.

Abstract translation: 提出了一种无线通信系统，用于HetNet通信系统中的强大的移动性管理。 在切换决策和/或准备期间，源小区可以准备宏小区和目标小小区作为切换候选。 使用无线电资源控制（RRC）消息传送向移动设备通知所准备的宏小区和目标小小区。 在接收到切换命令或检测射频（RF）丢失之后，移动设备可尝试连接目标小小区。 如果移动设备无法连接到目标小小区，则UE可以倒退并连接到宏小区。

公开(公告)号：US20140200002A1

公开(公告)日：2014-07-17

申请号：US14151969

申请日：2014-01-10

Applicant: APPLE INC.

Inventor： Sarma V. Vangala ,  Swaminathan Balakrishnan ,  Wael S. Barakat ,  Navid Damji ,  Tarik Tabet

IPC: H04W52/02 ,  H04W36/00

CPC classification number: H04W36/32 ,  H04W24/10 ,  H04W36/0061 ,  H04W36/0083 ,  H04W36/0088 ,  H04W52/0225 ,  H04W52/0254 ,  H04W76/15 ,  H04W88/06 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264

Abstract: A method for reducing power consumption by a wireless communication device is disclosed. The method can include the wireless communication device performing a first measurement of an alternative cell during a first measurement gap; sending a first measurement report generated based on the first measurement to the serving cell; storing the first measurement report; determining a mobility state of the wireless communication device; comparing the mobility state to a mobility threshold criterion; resending the first measurement report to the serving network as a report for a second measurement gap in an instance in which the mobility state satisfies the mobility criterion; and performing a second measurement of the alternative cell during the second measurement gap and sending a second measurement report generated based on the second measurement to the serving cell in an instance in which the mobility state does not satisfy the mobility threshold criterion.

Abstract translation: 公开了一种降低无线通信设备的功耗的方法。 该方法可以包括在第一测量间隙期间执行替代单元的第一测量的无线通信设备; 向所述服务小区发送基于所述第一测量生成的第一测量报告; 存储第一测量报告; 确定所述无线通信设备的移动性状态; 将移动性状态与移动性阈值标准进行比较; 在移动性状态满足移动性准则的情况下，将第一测量报告重新发送到服务网络作为用于第二测量间隙的报告; 以及在所述第二测量间隙期间执行所述备选小区的第二测量，并且在所述移动性状态不满足所述移动性阈值准则的情况下，将基于所述第二测量生成的第二测量报告发送给所述服务小区。

公开(公告)号：US20140126544A1

公开(公告)日：2014-05-08

申请号：US14066619

申请日：2013-10-29

Applicant: Apple Inc.

Inventor： Samy Khay-Ibbat ,  Tarik Tabet

IPC: H04W36/30

CPC classification number: H04W36/30 ,  H04W28/0221 ,  H04W40/08 ,  H04W48/18

Abstract: Apparatus and methods of performing a network cell transition for a voice over long term evolution (VoLTE) capable mobile device. Initially, the mobile device can detect a call initiation event. Thereafter, the mobile device determines whether a radio signal power associated with its serving LTE network base station is less than a radio access technology (RAT) specific threshold (i.e., an LTE-specific threshold). In a scenario where the radio signal power is less than the RAT-specific threshold the mobile device can effectuate a transition to an available neighbor network base station employing a legacy RAT, prior to establishing a voice call. When the mobile device is in a radio resource control (RRC) connected mode the network cell transition may be associated with an induced network handover procedure. Alternatively, when the mobile device is in an RRC idle mode the network cell transition may be associated with network reselection procedure.

Abstract translation: 对具有长期演进（VoLTE）能力的移动设备的语音执行网络小区转换的装置和方法。 最初，移动设备可以检测呼叫发起事件。 此后，移动设备确定与其服务LTE网络基站相关联的无线电信号功率是否小于无线接入技术（RAT）特定阈值（即，LTE特定阈值）。 在无线电信号功率小于RAT特定阈值的情况下，在建立语音呼叫之前，移动设备可以实现对使用传统RAT的可用的相邻网络基站的转换。 当移动设备处于无线电资源控制（RRC）连接模式时，网络小区转换可以与诱导的网络切换过程相关联。 或者，当移动设备处于RRC空闲模式时，网络小区转换可以与网络重选过程相关联。

公开(公告)号：US20140112172A1

公开(公告)日：2014-04-24

申请号：US13867584

申请日：2013-04-22

Applicant: APPLE INC.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Swaminathan Balakrishnan ,  Yuchul Kim ,  Navid Damji ,  Sreevalsan Vallath ,  Samy Khay-Ibbat ,  Syed Aon Mujtaba

IPC: H04W24/06

CPC classification number: H04L43/0888 ,  H04B17/309 ,  H04L43/10 ,  H04W24/06 ,  H04W24/08

Abstract: Loading estimation of 3GPP networks. One or more metrics relating to a cell of a 3GPP network may be measured. Loading of the cell may be estimated based on the one or more metrics. The metrics may include metrics measured, estimated, or derived at multiple layers, possibly including one or more of physical layer, radio link control layer, radio resource control layer, or application layer metrics.

Abstract translation: 加载3GPP网络的估计。 可以测量与3GPP网络的小区有关的一个或多个度量。 可以基于一个或多个度量来估计小区的加载。 度量可以包括在多层测量，估计或导出的度量，可能包括物理层，无线电链路控制层，无线电资源控制层或应用层度量中的一个或多个。

公开(公告)号：US20130324145A1

公开(公告)日：2013-12-05

申请号：US13896202

申请日：2013-05-16

Applicant: APPLE INC.

Inventor： Tarik Tabet ,  Kee-Bong Song ,  Syed A. Mujtaba ,  Young Jae Kim ,  Navid Damji

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04B7/0417 ,  H04B17/21 ,  H04B17/24 ,  H04L1/0026 ,  H04L1/0027 ,  H04L27/0008 ,  H04L27/2601 ,  H04W76/19

Abstract: Methods, apparatuses and computer readable media are described that adjust signaling messages that include channel quality metrics communicated between a mobile wireless device and a wireless access network before and/or after interruption of a connection to improve downlink performance after resumption of the connection. One or more adjusted channel quality metrics are determined and communicated to the wireless access network to compensate at least in part for an estimate of communication channel performance degradation by a network element of the wireless access network following the interruption and resumption of the connection between the mobile wireless device and the wireless access network.

Abstract translation: 描述了调整信号消息的方法，装置和计算机可读介质，该信令消息包括在连接中断之前和/或之后在移动无线设备与无线接入网之间通信的信道质量度量，以在恢​​复连接之后改善下行链路性能。 确定一个或多个经调整的信道质量度量并将其传送到无线接入网络，以至少部分地补偿在移动台之间的连接中断和恢复之后无线接入网络的网络元件的通信信道性能退化的估计 无线设备和无线接入网络。