公开(公告)号：US20210345455A1

公开(公告)日：2021-11-04

申请号：US16478951

申请日：2018-08-03

Applicant: Apple Inc.

Inventor： Sree Ram Kodali ,  Sethuraman Gurumoorthy ,  Murtaza A. Shikari ,  Haijing Hu ,  Srinivasan Nimmala ,  Yuqin Chen ,  Xu Ou ,  Longda Xing ,  Srirang A. Lovlekar ,  Fangli Xu ,  Dawei Zhang

IPC: H04W88/18 ,  H04W68/00 ,  H04W52/02

Abstract: A device may operate within a specified frequency band within a specified coverage area of a wireless cellular network served by a cell. The device may monitor, during a cell-specific paging window, paging messages transmitted by the cell within the cell-specific paging window to devices operating within the specified coverage area and targeted to receive paging messages. The device may enter an idle state if the monitoring indicates that the paging messages do not include a respective paging message intended for the device. If the monitoring indicates that the paging messages include a paging message intended for the device, the device may process the paging message. Furthermore, the device may indicate to the cell, when attaching to the cell, whether the device has a capability to support standalone operation within the specified frequency band. If the indication is that the device does not support such standalone operation, the cell may not issue paging messages to the device.

公开(公告)号：US11166336B2

公开(公告)日：2021-11-02

申请号：US16264885

申请日：2019-02-01

Applicant: Apple Inc.

Inventor： Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Murtaza A. Shikari ,  Srinivasan Nimmala ,  Haijing Hu ,  Fangli Xu ,  Yuqin Chen ,  Longda Xing ,  Xu Ou ,  Li Su ,  Vijay Venkataraman ,  Dawei Zhang ,  Muthukumaran Dhanapal ,  Sree Ram Kodali ,  Srinivas Burugupalli

IPC: H04W76/27 ,  H04W76/28 ,  H04W76/38

Abstract: This disclosure relates to performing implicit radio resource control state transitions in a cellular communication system. A wireless device may establish a radio resource control (RRC) connection with a cellular base station. A data inactivity timer length and a target RRC state for implicit RRC transitions may be determined. A data inactivity timer having the determined data inactivity timer length may be initiated. It may be determined that the data inactivity timer has expired. The wireless device may transition to the target RRC state based at least in part on determining that the data inactivity timer has expired.

公开(公告)号：US10999759B2

公开(公告)日：2021-05-04

申请号：US15987240

申请日：2018-05-23

Applicant: Apple Inc.

Inventor： Sree Ram Kodali ,  Xu Ou ,  Ashwini Raina

IPC: H04W28/02 ,  H04W24/08 ,  H04W28/14

Abstract: This disclosure relates to techniques for a wireless device to report uncategorized data in a buffer status report. A first portion of buffered uplink data to be reported in a buffer status report may be categorized using a traffic flow template. A second portion of buffered uplink data to be reported in the buffer status report may not be categorized using the traffic flow template. A buffer status report indicating both the categorized and the uncategorized buffered uplink data may be transmitted to a base station providing a serving cell to the wireless device. According to some embodiments, the categorized buffered uplink data may be stored in a baseband processor buffer of the wireless device, while the uncategorized buffered uplink data may be stored in an application processor buffer of the wireless device.

公开(公告)号：US20200275311A1

公开(公告)日：2020-08-27

申请号：US16461879

申请日：2018-05-18

Applicant: Apple Inc.

Inventor： Yingjie Zhao ,  Lele Cui ,  Faraz Faheem ,  Li Su ,  Jianxiong Shi ,  Xu Ou

IPC: H04W28/06 ,  H04L12/823 ,  H04W28/02

Abstract: A compressor may obtain information indicative of a transmit delay representative of a time duration that elapses between creation (e.g. by the compressor) of a packet and the transmission of the packet, e.g. over a wireless link. The transmit delay may be determined based at least on information indicative of the uplink capacity of the cellular network. The uplink capacity may be determined/obtained based on the uplink throughput and uplink power headroom. When the compressor receives a negative acknowledgement transmission/packet from the decompressor, if the transmit delay is not greater than a specified threshold value, the compressor may process the received negative acknowledgement packet. If the transmit delay is greater than the specified threshold value, the compressor may first discard the buffered compressed packet scheduled to be transmitted next to the decompressor, and transmit an initialization and refresh (IR) or IR dynamic packet to the decompressor instead.

公开(公告)号：US10757598B2

公开(公告)日：2020-08-25

申请号：US16590307

申请日：2019-10-01

Applicant: Apple Inc.

Inventor： Sree Ram Kodali ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Juergen H. Kreuchauf ,  Longda Xing ,  Murtaza A. Shikari ,  Rama Diwakara Rao Noolu ,  Sethuraman Gurumoorthy ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Xu Ou ,  Yuqin Chen

IPC: H04W52/00 ,  H04B17/00 ,  H04W24/10 ,  H04B17/318

Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for improvements of display of signal bars on a user interface of a wireless device. The wireless device may be configured to perform methods for determining a number of signal bars to display on the user interface based, at least in part, on a reference frequency. The reference frequency may be indicated and/or provided by a network.

公开(公告)号：US20200252989A1

公开(公告)日：2020-08-06

申请号：US16739952

申请日：2020-01-10

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Murtaza A. Shikari ,  Sree Ram Kodali ,  Srirang A. Lovlekar ,  Sethuraman Gurumoorthy ,  Haitong Sun ,  Fangli Xu ,  Haijing Hu ,  Dawei Zhang ,  Srinivasan Nimmala ,  Longda Xing ,  Xu Ou

IPC: H04W76/18 ,  H04W4/40 ,  H04L5/00 ,  H04L1/00 ,  H04W76/27 ,  H04W24/08 ,  H04W76/19 ,  H04W76/25 ,  H04W80/08 ,  H04W92/18

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for performing unicast sidelink access stratum level connection maintenance. A first wireless device and a second wireless device may establish a unicast sidelink wireless connection. One or both of the first wireless device and the second wireless device may perform access stratum level connection maintenance on the unicast sidelink wireless connection. This may include performing any or all of radio link monitoring, radio resource management, or physical layer based link quality detection. The access stratum and the non-access stratum of each device may also communicate with each other regarding either or both of link quality or link status of the unicast sidelink wireless connection.

公开(公告)号：US20200137744A1

公开(公告)日：2020-04-30

申请号：US16437223

申请日：2019-06-11

Applicant: Apple Inc.

Inventor： Murtaza A. Shikari ,  Sree Ram Kodali ,  Srirang A. Lovlekar ,  Sethuraman Gurumoorthy ,  Srinivasan Nimmala ,  Adesh Kumar ,  Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Haijing Hu ,  Fangli Xu ,  Yuqin Chen ,  Xu Ou ,  Longda Xing ,  Dawei Zhang

IPC: H04W72/04 ,  H04W76/10 ,  H04W12/00 ,  H04L5/00

Abstract: This disclosure relates to techniques for reducing signaling overhead associated with signaling the capability of a wireless device and/or other messages. Among various possibilities, tags and/or compression may be used. Additionally, techniques for enhanced security and signaling between network devices are disclosed.