公开(公告)号：US09332584B2

公开(公告)日：2016-05-03

申请号：US13654522

申请日：2012-10-18

Applicant: Apple Inc.

Inventor： Luciano M Verger ,  Navid Damji ,  Zhu Ji

IPC: H04W76/04 ,  H04W52/02

CPC classification number: H04W76/28 ,  H04W52/0216 ,  H04W52/0232 ,  H04W52/0251 ,  H04W52/0277 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/24

Abstract: Connected-mode discontinuous reception (C-DRX) cycle scaling by a wireless user equipment (UE) device. The UE may establish a connection with a network via a wireless link, which may operate according to LTE. The UE may communicate with the network via the wireless link using C-DRX over a plurality of C-DRX cycles. Each C-DRX cycle may include a period of time during which the UE operates in a reduced-power state and a scheduled on-duration period of time. An indication may be received to remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle. The UE may remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle in response to the indication.

Abstract translation: 由无线用户设备（UE）设备连接模式不连续接收（C-DRX）周期缩放。 UE可以经由可以根据LTE操作的无线链路与网络建立连接。 UE可以经由多个C-DRX周期中的C-DRX经由无线链路与网络进行通信。 每个C-DRX周期可以包括UE在降低功率状态和调度的持续时间段期间操作的时间段。 可以在至少一个C-DRX周期的调度的持续时间段期间接收指示以保持在降低功率状态。 响应于该指示，UE可以在至少一个C-DRX周期的调度的持续时间段期间保持在降低功率状态。

公开(公告)号：US08787835B2

公开(公告)日：2014-07-22

申请号：US13630496

申请日：2012-09-28

Applicant: Apple Inc.

Inventor： Luciano M Verger ,  Srinivasan Vasudevan ,  Wen Zhao

IPC: H04W88/02

CPC classification number: H04W48/18 ,  H04W48/02

Abstract: A method and apparatus for forced cell/RAT reselection is disclosed. In one embodiment, a cellular mobile communication device may attempt to access a network through a serving cell. Responsive to determining that access to the network is barred through the serving cell, the mobile communication device may determine if another cell is available through which it may obtain access to the network. If another cell providing network access is available, the mobile communication device may force reselection from the serving cell to the new cell. If no other cell providing access to the network is available to the mobile communication device, a forced reselection of a radio access technology may be performed.

Abstract translation: 公开了一种用于强制小区/ RAT重选的方法和装置。 在一个实施例中，蜂窝移动通信设备可以尝试通过服务小区接入网络。 响应于确定通过服务小区对网络的访问被禁止，移动通信设备可以确定另一个小区是否可用，通过它可以获得对网络的访问。 如果提供网络访问的另一小区可用，则移动通信设备可以强制从服务小区到新小区的重新选择。 如果没有提供对网络的访问的其他小区可用于移动通信设备，则可以执行无线电接入技术的强制重选。

公开(公告)号：US09107159B2

公开(公告)日：2015-08-11

申请号：US14293494

申请日：2014-06-02

Applicant: Apple Inc.

Inventor： Luciano M Verger ,  Madhusudan Chaudhary ,  Onur E Tackin ,  Oren M Elrad ,  Srinivasan Vasudevan ,  Thanigaivelu Elangovan ,  Tiange Shao

IPC: H04L1/00 ,  H04W56/00 ,  H04W36/00 ,  H04J3/06 ,  H04L29/06 ,  H04W36/14 ,  H04L1/20

CPC classification number: H04W56/003 ,  H04J3/0632 ,  H04L1/203 ,  H04L1/205 ,  H04L29/06027 ,  H04L65/80 ,  H04L67/322 ,  H04W36/0022 ,  H04W36/0072 ,  H04W36/0088 ,  H04W36/08 ,  H04W36/14

Abstract: A jitter buffer in a Voice over LTE receiver may be influenced by radio level feedback (RLF) from both local and remote endpoints to preemptively adjust the jitter buffer delay in anticipation of predicted future losses that have a high probability of occurring. The radio events of the RLF and the scenarios that trigger the preemptive adjustments may be identified, and their use may be expressed in terms of mathematical formulas. In prior art designs, the instantaneous jitter is derived from a weighted history of the media stream, and consequently only packets that have already arrived are used to compute the instantaneous jitter to adjust the length of the buffer. By providing and using RLF from both local and remote endpoints, the anticipated delay—for packets that have not yet arrived—may be used to preemptively adjust the buffer, thereby minimizing packet loss without introducing unnecessary delay.

Abstract translation: 在LTE语音接收机中的抖动缓冲器可能受来自本地和远端端点的无线电电平反馈（RLF）的影响，以预先考虑具有高概率发生的预测未来损耗的抖动缓冲器延迟。 可以识别RLF的无线电事件和触发抢先调整的场景，并且可以用数学公式来表示它们的使用。 在现有技术的设计中，瞬时抖动是从媒体流的加权历史导出的，因此只有已经到达的分组被用于计算瞬时抖动以调整缓冲器的长度。 通过从本地端点和远端端点提供和使用RLF，对于尚未到达的数据包，预期的延迟可能被用于抢先调整缓冲区，从而最大限度地减少数据包丢失而不引入不必要的延迟。

公开(公告)号：US20140112221A1

公开(公告)日：2014-04-24

申请号：US13654522

申请日：2012-10-18

Applicant: APPLE INC.

Inventor： Luciano M Verger ,  Navid Damji ,  Zhu Ji

IPC: H04W76/04

CPC classification number: H04W76/28 ,  H04W52/0216 ,  H04W52/0232 ,  H04W52/0251 ,  H04W52/0277 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/24

Abstract: Connected-mode discontinuous reception (C-DRX) cycle scaling by a wireless user equipment (UE) device. The UE may establish a connection with a network via a wireless link, which may operate according to LTE. The UE may communicate with the network via the wireless link using C-DRX over a plurality of C-DRX cycles. Each C-DRX cycle may include a period of time during which the UE operates in a reduced-power state and a scheduled on-duration period of time. An indication may be received to remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle. The UE may remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle in response to the indication.

Abstract translation: 由无线用户设备（UE）设备连接模式不连续接收（C-DRX）周期缩放。 UE可以经由可以根据LTE操作的无线链路与网络建立连接。 UE可以经由多个C-DRX周期中的C-DRX经由无线链路与网络进行通信。 每个C-DRX周期可以包括UE在降低功率状态和调度的持续时间段期间操作的时间段。 可以在至少一个C-DRX周期的调度的持续时间段期间接收指示以保持在降低功率状态。 响应于该指示，UE可以在至少一个C-DRX周期的调度的持续时间段期间保持在降低功率状态。