公开(公告)号：US09826461B2

公开(公告)日：2017-11-21

申请号：US15084697

申请日：2016-03-30

Applicant: Apple Inc.

Inventor： Samy Khay-Ibbat ,  Tarik Tabet

IPC: H04W48/06 ,  H04W84/04

CPC classification number: H04W48/06 ,  H04W84/042 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/26

Abstract: Techniques are disclosed relating to determining whether to bar a public land mobile network (PLMN). In some embodiments, a mobile device is configured to increment a count of failed requests to a PLMN for requests that are explicitly rejected by a base station and not for other requests. In some embodiments, the mobile device is configured to bar the PLMN in response to the count reaching a threshold value. In some embodiments, for requests that fail without explicit rejection, the mobile device is configured to wait a predetermined time interval before transmitting another request to the base station. The time interval may be telescoped for subsequent requests that fail without a rejection. In various embodiments, the disclosed techniques may reduce power consumption while avoiding premature PLMN barring.

公开(公告)号：US20170273031A1

公开(公告)日：2017-09-21

申请号：US15605977

申请日：2017-05-26

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Samy Khay-Ibbat ,  Awais M. Hussain

IPC: H04W52/24 ,  H04W72/04 ,  H04W52/26 ,  H04W72/08 ,  H04L5/00

CPC classification number: H04W52/241 ,  H04L5/005 ,  H04L5/0057 ,  H04W52/262 ,  H04W52/32 ,  H04W72/0473 ,  H04W72/048 ,  H04W72/085

Abstract: A link-budget-limited wireless communication device (UE) may implement improved radio link monitoring procedures for enhancing the link-budget of the UE. The UE may monitor the radio link and may determine whether the radio link can support a lowest acceptable link quality according to a hysteresis-based comparison that uses threshold values to determine error rates associated with a physical control channel. The UE may also identify itself to the network as a link-budget-limited device, and the network may enable special link-budget enhancing features for the UE, including boosting the power of the resource elements (REs) carrying physical channel signaling/data to the UE. The UE may detect the presence of power boost and may estimate/determine the power boost level. The UE may modify the threshold values based on the power boost detection and/or results of the power boost level estimation/determination, and may use the modified threshold values for determining radio link quality during radio link monitoring.

公开(公告)号：US09743324B2

公开(公告)日：2017-08-22

申请号：US15225012

申请日：2016-08-01

Applicant: Apple Inc.

Inventor： Samy Khay-Ibbat ,  Tarik Tabet

IPC: H04W36/04 ,  H04W36/30 ,  H04W24/02 ,  H04W48/16 ,  H04W24/10 ,  H04W36/00 ,  H04W88/02 ,  H04W36/24 ,  H04W48/18 ,  H04W48/20

CPC classification number: H04W36/04 ,  H04W24/02 ,  H04W24/10 ,  H04W36/0083 ,  H04W36/24 ,  H04W36/30 ,  H04W48/16 ,  H04W48/18 ,  H04W48/20 ,  H04W88/02

Abstract: Some embodiments relate to a user equipment (UE) configured to modify at least one signal strength threshold value to provide improved operation for link budget limited devices when performing cell selection or reselection. In some embodiments, the UE may receive a threshold value indicating a minimum received signal strength for camping on a cell. The UE may determine an offset value based on operating parameters of the UE, and may determine a modified threshold value by applying the offset value to the received threshold value. The UE may then compare the modified threshold value to a signal strength measurement of a signal received from a base station associated with the cell. The UE may camp on the cell if the modified threshold value is less than the signal strength measurement, and not camp on the cell if the modified threshold value is greater than the signal strength measurement.

公开(公告)号：US09564997B2

公开(公告)日：2017-02-07

申请号：US14453408

申请日：2014-08-06

Applicant: APPLE INC.

Inventor： Christian W. Mucke ,  Johnson O. Sebeni ,  Navid Damji ,  Samy Khay-Ibbat ,  Syed A. Mujtaba ,  Tarik Tabet ,  Vinay R. Majjigi

IPC: H04W4/00 ,  H04L1/18 ,  H04W52/02

CPC classification number: H04L1/1874 ,  H04L1/1854 ,  H04W52/0209 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23 ,  Y02D70/24

Abstract: A method for determining whether an acknowledgement received by a user equipment from an external device is a forced acknowledgement. The method including transmitting a set of data stored in an uplink buffer to an external device, receiving an acknowledgement from the external device, determining if the acknowledgement received from the external device was a forced acknowledgement and flushing out an uplink buffer if determined that the acknowledgement was not a forced acknowledgement. The determining the acknowledgement is a forced acknowledgment being based on whether an uplink retransmission collides with one or more scheduled transmission times, a Physical Hybrid-ARQ Indicator Channel (PHICH) falls between gap measurements and an uplink retransmission collides with one of the gap measurements or a TTI bundling retransmission collides with a gap measurement. If the acknowledgement is not a forced acknowledgment, a set of data stored in the uplink buffer is retransmitted to the external device.

Abstract translation: 一种用于确定用户设备从外部设备接收到的确认是否是强制确认的方法。 该方法包括将存储在上行链路缓冲器中的一组数据发送到外部设备，从外部设备接收确认，确定从外部设备接收到的确认是否是强制确认，并且如果确定确认 不是强制确认。 确定确认是基于上行链路重传是否与一个或多个调度的传输时间相冲突的强制确认，物理混合ARQ指示符信道（PHICH）落在间隙测量之间，并且上行链路重传与间隙测量之一相冲突， TTI捆绑重传与间隙测量相冲突。 如果确认不是强制确认，则将存储在上行链路缓冲器中的一组数据重新发送到外部设备。

公开(公告)号：US20160337107A1

公开(公告)日：2016-11-17

申请号：US15077998

申请日：2016-03-23

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Syed Aon Mujtaba ,  Samy Khay-Ibbat ,  Rafael L. Rivera-Barreto

IPC: H04L5/14 ,  H04L1/18

CPC classification number: H04L5/14 ,  H04L1/1812 ,  H04L5/16

Abstract: A user equipment (UE) and network entity implement improved communication methods which enable a UE to operate using differing modes of operation without detaching from a network. The UE may send first information indicating its capabilities to the network entity and may receive a first indication based on the first information. The first indication may indicate that the UE operate according to a first mode of operation. The UE may receive a second indication based on an occurrence of a first condition detectable at the network entity. The second indication may indicate that the UE operate according to a second mode of operation different from the first mode of operation. The first condition may be an initialization of a real time data packet session for the UE or may be a first message sent by the UE in response to one or more radio conditions exceeding a threshold.

Abstract translation: 用户设备（UE）和网络实体实现改进的通信方法，其使UE能够在不从网络分离的情况下使用不同的操作模式进行操作。 UE可以向网络实体发送指示其能力的第一信息，并且可以基于第一信息来接收第一指示。 第一指示可以指示UE根据第一操作模式操作。 UE可以基于在网络实体处可检测到的第一条件的发生来接收第二指示。 第二指示可以指示UE根据与第一操作模式不同的第二操作模式来操作。 第一条件可以是用于UE的实时数据分组会话的初始化，或者可以是响应于一个或多个无线电条件超过阈值由UE发送的第一消息。

公开(公告)号：US20160262094A1

公开(公告)日：2016-09-08

申请号：US15013738

申请日：2016-02-02

Applicant: Apple Inc.

Inventor： Samy Khay-Ibbat ,  Tarik Tabet ,  Rafael L. Rivera-Barreto ,  Moustafa M. Elsayed

IPC: H04W48/18 ,  H04W72/08 ,  H04W72/04 ,  H04W4/00

CPC classification number: H04W48/18 ,  G06F1/163 ,  H04B1/385 ,  H04B2001/3861 ,  H04M1/6066 ,  H04M1/7253 ,  H04M2250/02 ,  H04M2250/06 ,  H04W4/80 ,  H04W52/0261 ,  H04W52/0277 ,  H04W72/0433 ,  H04W72/048 ,  H04W72/08 ,  H04W88/04 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/26 ,  Y02D70/40

Abstract: Some embodiments relate to an accessory device that may operate in a first mode, where the first radio of the accessory device is configured to perform cellular communication with a base station, or a second mode, where the second radio of the accessory device is configured to perform short-range communication with a companion device and utilize cellular functionality of the companion device to provide cellular communications through the companion device to the base station. The accessory device may operate to selectively transition between the first mode and the second mode based on one or more factors, such as signal strength of the short-range communication between the accessory device and the companion device, the relative batter level of the two devices, and/or a communications status of the companion device.

Abstract translation: 一些实施例涉及可以以第一模式操作的附件设备，其中附件设备的第一无线电被配置为执行与基站的蜂窝通信或第二模式，其中附件设备的第二无线电被配置为 执行与配套设备的短距离通信，并利用配套设备的蜂窝功能来通过配套设备向基站提供蜂窝通信。 辅助设备可以基于一个或多个因素来操作以选择性地在第一模式和第二模式之间转换，诸如附件设备和伴随设备之间的短距离通信的信号强度，两个设备的相对击球级别 ，和/或伴随设备的通信状态。

公开(公告)号：US20160073299A1

公开(公告)日：2016-03-10

申请号：US14817590

申请日：2015-08-04

Applicant: Apple Inc.

Inventor： Huarui Liang ,  Tarik Tabet ,  Dawei Zhang ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Rafael L. Rivera-Barreto

IPC: H04W36/00 ,  H04W72/08 ,  H04W76/04 ,  H04L12/14 ,  H04L29/06

CPC classification number: H04L65/1016 ,  H04L12/1407 ,  H04L65/1069 ,  H04L65/80 ,  H04M15/57 ,  H04M15/63 ,  H04M15/66 ,  H04W4/24 ,  H04W28/24 ,  H04W76/12

Abstract: Techniques are disclosed relating to informing a network that a UE desires packet-switched voice communication. In one embodiment, a method includes receiving first information from a UE device requesting voice communication over a packet-switched network. In this embodiment, the method further includes transmitting, in response to the first information, second information to a base station serving the UE device, wherein the second information indicates that the UE device is requesting voice communication over the packet-switched network. In this embodiment, the transmitting is performed prior to establishment of a dedicated bearer by the base station for the UE device. In this embodiment, the second information operates to configure communications between the base station and the UE device to provide a particular quality of service for the packet-switched voice communication using the dedicated bearer.

Abstract translation: 公开了关于向网络通知UE期望分组交换语音通信的技术。 在一个实施例中，一种方法包括从通过分组交换网络请求语音通信的UE设备接收第一信息。 在本实施例中，该方法还包括响应于第一信息向向UE设备发送的基站发送第二信息，其中第二信息指示UE设备正通过分组交换网络请求语音通信。 在本实施例中，发送是在基站为UE设备建立专用承载之前执行的。 在该实施例中，第二信息用于配置基站和UE设备之间的通信，以便为使用专用承载的分组交换语音通信提供特定服务质量。

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：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：US20150043481A1

公开(公告)日：2015-02-12

申请号：US14453408

申请日：2014-08-06

Applicant: APPLE INC.

Inventor： Christian W. Mucke ,  Johnson O. Sebeni ,  Navid Damji ,  Samy Khay-Ibbat ,  Syed A. Mujtaba ,  Tarik Tabet ,  Vinay R. Majjigi

IPC: H04L1/18 ,  H04W52/02

CPC classification number: H04L1/1874 ,  H04L1/1854 ,  H04W52/0209 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23 ,  Y02D70/24

Abstract: A method for determining whether an acknowledgement received by a user equipment from an external device is a forced acknowledgement. The method including transmitting a set of data stored in an uplink buffer to an external device, receiving an acknowledgement from the external device, determining if the acknowledgement received from the external device was a forced acknowledgement and flushing out an uplink buffer if determined that the acknowledgement was not a forced acknowledgement. The determining the acknowledgement is a forced acknowledgment being based on whether an uplink retransmission collides with one or more scheduled transmission times, a Physical Hybrid-ARQ Indicator Channel (PHICH) falls between gap measurements and an uplink retransmission collides with one of the gap measurements or a TTI bundling retransmission collides with a gap measurement. If the acknowledgement is not a forced acknowledgment, a set of data stored in the uplink buffer is retransmitted to the external device.

Abstract translation: 一种用于确定用户设备从外部设备接收到的确认是否是强制确认的方法。 该方法包括将存储在上行链路缓冲器中的一组数据发送到外部设备，从外部设备接收确认，确定从外部设备接收到的确认是否是强制确认，并且如果确定确认 不是强制确认。 确定确认是基于上行链路重传是否与一个或多个调度的传输时间相冲突的强制确认，物理混合ARQ指示符信道（PHICH）落在间隙测量之间，并且上行链路重传与间隙测量之一相冲突， TTI捆绑重传与间隙测量相冲突。 如果确认不是强制确认，则将存储在上行链路缓冲器中的一组数据重新发送到外部设备。