公开(公告)号：US10057823B2

公开(公告)日：2018-08-21

申请号：US15153676

申请日：2016-05-12

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto ,  David Boettger ,  Awais M. Hussain ,  Syed Aon Mujtaba

IPC: H04W36/00 ,  H04W36/30 ,  H04B17/336 ,  H04B17/382

CPC classification number: H04W36/0083 ,  H04B17/336 ,  H04B17/382 ,  H04W36/0058 ,  H04W36/00837

Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.

公开(公告)号：US10051682B2

公开(公告)日：2018-08-14

申请号：US15290908

申请日：2016-10-11

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Venkateswara Rao Manepalli ,  Madhusudan Chaudhary ,  Faraz Faheem ,  Syed Aon Mujtaba ,  Jianxiong Shi ,  Sreevalsan Vallath

IPC: H04W76/04 ,  H04W76/27 ,  H04W72/12 ,  H04L1/18 ,  H04W28/02 ,  H04W40/00 ,  H04W84/04 ,  H04W88/02

CPC classification number: H04W76/27 ,  H04L1/1832 ,  H04W28/0268 ,  H04W40/005 ,  H04W72/1242 ,  H04W84/042 ,  H04W88/02

Abstract: This disclosure relates to techniques for scheduling radio resource control connections between a wireless device and a network element of a network in advance. According to some embodiments, a wireless device may provide an indication of one or more types of upcoming data traffic to the network element. The network element may schedule one or more radio resource control connections for the wireless device based at least in part on the indication of one or more types of upcoming data traffic. The network element may provide an indication of the scheduled radio resource control connection(s) to the wireless device. The wireless device and the network may establish the scheduled radio resource control connection at the scheduled time.

公开(公告)号：US09872286B2

公开(公告)日：2018-01-16

申请号：US14865395

申请日：2015-09-25

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Awais M. Hussain ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto

IPC: H04W72/04 ,  H04W48/20 ,  H04W48/12

CPC classification number: H04W72/042 ,  H04W48/12 ,  H04W48/20

Abstract: Techniques are disclosed relating to broadcasting and receiving system information in a radio access network (RAN). In one embodiment, a base station includes at least one antenna, at least one radio, configured to perform cellular communication using a radio access technology (RAT), and one or more processors coupled to the radio. In this embodiment, the base station is configured to broadcast first system information blocks (SIBs) encoded using a first coding rate and a first identifier. In this embodiment, the base station is also configured to broadcast second SIBs encoded using a second coding rate that is lower than the first coding rate and a second identifier. In this embodiment, the second SIBs include only a portion of the information included in the first SIBs and the second SIBs are usable by user equipment devices (UEs) having a limited link budget to determine access parameters for the base station.

公开(公告)号：US20170347278A1

公开(公告)日：2017-11-30

申请号：US15169400

申请日：2016-05-31

Applicant: Apple Inc.

Inventor： Francisco J. Gonzalez ,  Rafael L. Rivera-Barreto ,  Rohan C. Malthankar ,  Sarma V. Vangala ,  Tarik Tabet

IPC: H04W24/02 ,  H04L29/08 ,  H04W8/04 ,  H04B1/3827 ,  H04W88/06

CPC classification number: H04W24/02 ,  H04B1/385 ,  H04L67/303 ,  H04W8/04 ,  H04W28/18 ,  H04W74/006 ,  H04W76/10 ,  H04W88/06

Abstract: System and methods for providing special radio provisions to link budget limited devices. Before establishing a cellular connection with a cellular network, a user equipment device (UE), such as a link budget limited UE, may negotiate the special radio provisions with the network by presenting requested profile information to the network, and receiving back approved profile information from the network. The UE may perform these communications either directly, via a non-cellular communication connection with the network, or indirectly, via a companion or proxy device. When the UE initiates a cellular connection with the network, both entities may use information specified in the approved profile information, which may improve efficiency of the connection. In some scenarios, the approved profile information may identify a class of devices to which the UE belongs. The approved profile information may also be used in establishing connections with other devices of the same class.

公开(公告)号：US09603074B2

公开(公告)日：2017-03-21

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: H04L5/00 ,  H04W36/00 ,  H04W36/06 ,  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.

公开(公告)号：US09585068B2

公开(公告)日：2017-02-28

申请号：US14049894

申请日：2013-10-09

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Sarma V. Vangala ,  Sreevalsan Vallath ,  Swaminathan Balakrishnan

IPC: H04W36/00 ,  H04W52/14 ,  H04W36/06 ,  H04W36/30

CPC classification number: H04W36/0083 ,  H04W36/06 ,  H04W36/30 ,  H04W52/14 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/166 ,  Y02D70/23

Abstract: A method for triggering cell transition in an uplink power limited condition is disclosed. The method can include a wireless communication device determining that the wireless communication device is experiencing an uplink power limited condition; deriving a modified downlink channel quality measurement by adjusting a measured downlink channel quality to indicate a lower downlink channel quality than the measured downlink channel quality; generating a measurement report including the modified downlink channel quality measurement; and sending the measurement report to the serving cell to trigger transition of the wireless communication device from the serving cell to a second cell.

Abstract translation: 公开了一种在上行链路功率限制条件下触发小区转换的方法。 该方法可以包括确定无线通信设备正在经历上行链路功率限制条件的无线通信设备; 通过调整测量的下行链路信道质量以指示比所测量的下行链路信道质量低的下行链路信道质量来导出修改的下行链路信道质量测量; 生成包括修改的下行链路信道质量测量的测量报告; 以及将所述测量报告发送到所述服务小区以触发所述无线通信设备从所述服务小区到第二小区的转换。

公开(公告)号：US20170034869A1

公开(公告)日：2017-02-02

申请号：US15290908

申请日：2016-10-11

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Venkateswara Rao Manepalli ,  Madhusudan Chaudhary ,  Faraz Faheem ,  Syed Aon Mujtaba ,  Jianxiong Shi ,  Sreevalsan Vallath

IPC: H04W76/04 ,  H04W40/00 ,  H04W28/02 ,  H04W72/12

CPC classification number: H04W76/27 ,  H04L1/1832 ,  H04W28/0268 ,  H04W40/005 ,  H04W72/1242 ,  H04W84/042 ,  H04W88/02

Abstract: This disclosure relates to techniques for scheduling radio resource control connections between a wireless device and a network element of a network in advance. According to some embodiments, a wireless device may provide an indication of one or more types of upcoming data traffic to the network element. The network element may schedule one or more radio resource control connections for the wireless device based at least in part on the indication of one or more types of upcoming data traffic. The network element may provide an indication of the scheduled radio resource control connection(s) to the wireless device. The wireless device and the network may establish the scheduled radio resource control connection at the scheduled time.

Abstract translation: 本公开涉及用于预先在无线设备和网络的网络元件之间调度无线电资源控制连接的技术。 根据一些实施例，无线设备可以向网络元件提供一种或多种类型的即将到来的数据业务的指示。 网络元件可以至少部分地基于一种或多种类型的即将到来的数据业务的指示来调度无线设备的一个或多个无线电资源控制连接。 网络元件可以向无线设备提供调度的无线电资源控制连接的指示。 无线设备和网络可以在预定时间建立调度的无线电资源控制连接。

公开(公告)号：US09426672B2

公开(公告)日：2016-08-23

申请号：US13851016

申请日：2013-03-26

Applicant: Apple Inc.

Inventor： Jianxiong Shi ,  Johnson O. Sebeni ,  Li Su ,  Navid Damji ,  Paul V. Flynn ,  Sarma V. Vangala ,  Sreevalsan Vallath ,  Thanigaivelu Elangovan ,  Zhu Ji

IPC: H04W24/02 ,  H04W76/02 ,  H04W60/00 ,  H04L1/00 ,  H04W72/12 ,  H04W88/06 ,  H04W48/02

CPC classification number: H04W24/02 ,  H04L1/0026 ,  H04W48/02 ,  H04W72/1215 ,  H04W76/19 ,  H04W88/06

Abstract: Methods and apparatus for network-based detection and mitigation of hybrid client device reception outage events. For example, in one embodiment, a cellular device uses a single-radio solution to support circuit-switched calls on a CDMA 1X network and packet-switched calls on LTE. Periodically, the cellular device tunes away from LTE and monitors CDMA 1X activity, and vice versa. During these tuned-away periods, the network adjusts operation to mitigate adverse effects (e.g., underutilization of radio resources, synchronization loss, etc.).

Abstract translation: 用于基于网络的检测和缓解混合客户端设备接收中断事件的方法和装置。 例如，在一个实施例中，蜂窝设备使用单无线电解决方案来支持CDMA 1X网络上的电路交换呼叫和LTE上的分组交换呼叫。 周期性地，蜂窝设备调谐远离LTE并监视CDMA 1X活动，反之亦然。 在这些调谐期间，网络调整操作以减轻不利影响（例如，无线电资源利用不足，同步丢失等）。

公开(公告)号：US09319985B2

公开(公告)日：2016-04-19

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 ,  H04W24/10 ,  H04W76/02 ,  H04W88/06

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：US20150350971A1

公开(公告)日：2015-12-03

申请号：US14292733

申请日：2014-05-30

Applicant: APPLE INC.

Inventor： Samy Khay-Ibbat ,  Sarma V. Vangala ,  Swaminathan Balakrishnan

IPC: H04W36/00 ,  H04W76/04

CPC classification number: H04W36/0066 ,  H04W36/0022 ,  H04W36/06 ,  H04W36/10 ,  H04W48/18

Abstract: A method performed by stations to transfer call sessions between different access networks. The methods include transmitting, by a first station to a second station, an invite to join a voice call on a first radio access network (RAN), receiving, by the second station, the invite, generating, by the second station, a response to the invite, determining, by the second station, that the response cannot be successfully transmitted to the first station, associating, by the second station, with a second RAN, generating, by the second station, a message indicating the second station has associated with the second RAN, transmitting, by the second station, the message to the first station, retransmitting, by the first station, the invite to join the voice call, receiving, by the second station, the invite on the second RAN and setting up the voice call between the first station and the second station.

Abstract translation: 一种由站点在不同接入网络之间传送呼叫会话的方法。 所述方法包括由第一站向第二站发送邀请以在第一无线电接入网络（RAN）上加入语音呼叫，由第二站接收邀请，由第二站发送响应 由所述第二站确定所述响应不能被成功发送到所述第一站，由所述第二站与第二RAN相关联，由所述第二站生成指示所述第二站具有相关联的消息 与所述第二RAN一起，由所述第二站向所述第一站发送所述消息，由所述第一站重传所述邀请以加入所述语音呼叫，由所述第二站接收所述第二RAN上的邀请并设置 在第一站和第二站之间的语音呼叫。