公开(公告)号：US20190200236A1

公开(公告)日：2019-06-27

申请号：US16174973

申请日：2018-10-30

Applicant: APPLE INC.

Inventor： Prateek SHARMA ,  Tianyan PU ,  Sreevalsan VALLATH ,  Deepankar BHATTACHARJEE

IPC: H04W16/14 ,  H04W72/08 ,  H04W76/10

Abstract: A user equipment (UE) has a cellular connection established by a cellular chip, the cellular connection including a secondary component carrier (SCC) of carrier aggregation (CA) in the unlicensed spectrum. The UE receives, by a WiFi chip of the UE, a message from the cellular chip indicating a first frequency band corresponding to the SCC, determines whether a hotspot service is enabled utilizing at least a portion of the first frequency band that the cellular chip has indicated corresponds to the SCC and when the hotspot service is enabled, switches, by the WiFi chip, the hotspot service from the first frequency band to a second frequency band.

公开(公告)号：US20190104545A1

公开(公告)日：2019-04-04

申请号：US16129237

申请日：2018-09-12

Applicant: APPLE INC.

Inventor： Tianyan PU ,  Prateek SHARMA ,  Sami M. ALMALFOUH ,  Ping WANG ,  Wei ZHANG ,  Sreevalsan VALLATH

IPC: H04W74/08

Abstract: A method is disclosed where a user equipment (“UE”) is operating in a carrier aggregation mode and connected to a first cell operating on a licensed band and a second cell operating on an unlicensed band. The method may include the UE performing a carrier sensing operation on the unlicensed band, determining, from the carrier sensing operation, a duration that the unlicensed band will be occupied, refraining from transmitting data to the second cell on the unlicensed band for the duration that the unlicensed band will be occupied and setting a transmitter in communication with the second cell to a low power mode for the duration that the unlicensed band will be occupied.

公开(公告)号：US20160353460A1

公开(公告)日：2016-12-01

申请号：US14725764

申请日：2015-05-29

Applicant: APPLE INC.

Inventor： Swaminathan BALAKRISHNAN ,  Sarma V. VANGALA ,  Sreevalsan VALLATH ,  Prateek SHARMA

IPC: H04W72/10 ,  H04W48/14 ,  H04W72/04

CPC classification number: H04W72/10 ,  H04W48/14 ,  H04W48/18 ,  H04W72/0453

Abstract: Described herein are systems and methods for prioritizing frequency selection of a user equipment (“UE”) having a transceiver configured to enable the UE to establish a connection with a network using at least two communication protocols. A method may comprise recording, at the UE, a camped frequency and a camped band with which the UE is communicating with the first network in the first protocol, disconnecting from the first network and connecting to the second network, and disconnecting from the second network and reconnecting to the first network, wherein the reconnecting to the first network includes determining whether one of the camped frequency or a different frequency within the camped band is available for reconnection to the first network, and reconnecting to the first network using the one of the camped frequency or the different frequency within the camped band.

Abstract translation: 这里描述了用于对具有收发器的用户设备（“UE”）的频率选择进行优先级排序的系统和方法，所述收发机被配置为使得UE能够使用至少两个通信协议与网络建立连接。 一种方法可以包括在所述UE处记录所述第一协议中UE与所述第一网络进行通信的驻留频率和驻留频带，从所述第一网络断开并连接到所述第二网络，以及从所述第二网络断开连接 并且重新连接到所述第一网络，其中与所述第一网络的重新连接包括确定所述驻扎频带内的所述驻留频率中的一个是否可用于重新连接到所述第一网络，以及使用所述第一网络中的一个重新连接到所述第一网络 驻扎频率或驻扎频带内的不同频率。

公开(公告)号：US20160219518A1

公开(公告)日：2016-07-28

申请号：US14604246

申请日：2015-01-23

Applicant: APPLE INC.

Inventor： Yingjie ZHAO ,  Li SU ,  Sreevalsan VALLATH ,  Wanping ZHANG

IPC: H04W52/02 ,  H04W72/14

CPC classification number: H04W52/0225 ,  H04L1/00 ,  H04L1/1854 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0274 ,  H04W72/042 ,  H04W76/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/23 ,  Y02D70/24

Abstract: A user equipment (UE) and corresponding methods to conserve power by the UE. The UE includes a transceiver, the transceiver configured to enable the UE to establish a connection with a Long Term Evolution (LTE) network and configured to operate using a Connected Discontinuous Reception (CDRX) functionality. The processor controls the transceiver by receiving an uplink (UL) grant at a first subframe of a frame of a cycle of the CDRX functionality, transmitting data based upon the UL grant at a predetermined second subframe, and receiving a response from the LTE network corresponding to one of an acknowledgement (ACK) and a negative ACK (NACK) at a predetermined third subframe. The processor deactivates the transmitter for a remainder of the frame based or deactivates a receiver for a remainder of the frame based upon whether the ACK is received.

Abstract translation: 用户设备（UE）和相应的方法来节省UE的功率。 所述UE包括收发器，所述收发器被配置为使所述UE能够与长期演进（LTE）网络建立连接并且被配置为使用连接的不连续接收（CDRX）功能进行操作。 处理器通过在CDRX功能的周期的帧的第一子帧处接收上行链路（UL）许可来控制收发器，基于在预定的第二子帧处的UL许可发送数据，并且从LTE网络接收对应的响应 到预定的第三子帧的确认（ACK）和否定ACK（NACK）中的一个。 处理器基于帧的剩余部分去激活发射机，或者基于是否接收到ACK来停用帧的剩余部分的接收机。

公开(公告)号：US20160073317A1

公开(公告)日：2016-03-10

申请号：US14944156

申请日：2015-11-17

Applicant: Apple Inc.

Inventor： Samy KHAY-IBBAT ,  Sarma V. VANGALA ,  Paul V. FLYNN ,  Wen ZHAO ,  Sreevalsan VALLATH ,  Navid DAMJI

IPC: H04W36/30 ,  H04W36/14 ,  H04N7/14

CPC classification number: H04W36/30 ,  H04N7/147 ,  H04N7/148 ,  H04W36/14

Abstract: A method for transitioning a video call is provided. The method can include a wireless communication device participating in a video call with a remote communication device via a first video call session established over a connection between the wireless communication device and a first cellular network. The video call can include a packet switched video stream carried over a first bearer and an audio stream carried over a second bearer. The method can further include the wireless communication device determining a degradation in a connection quality for the first cellular network; transitioning to a legacy cellular network having a circuit switched domain in response to the degradation in connection quality for the first cellular network; establishing a second video call session on the legacy cellular network; and using the second video call session to continue the video call on the legacy cellular network.

Abstract translation: 提供了一种用于转换视频呼叫的方法。 该方法可以包括经由无线通信设备和第一蜂窝网络之间的连接建立的第一视频呼叫会话与远程通信设备参与视频呼叫的无线通信设备。 视频呼叫可以包括通过第一承载携带的分组交换视频流和通过第二承载携带的音频流。 该方法还可以包括无线通信设备确定第一蜂窝网络的连接质量的劣化; 响应于第一蜂窝网络的连接质量的劣化，转换到具有电路交换域的传统蜂窝网络; 在传统蜂窝网络上建立第二视频呼叫会话; 并且使用第二视频呼叫会话继续在传统蜂窝网络上的视频呼叫。