公开(公告)号：US10271272B2

公开(公告)日：2019-04-23

申请号：US15402570

申请日：2017-01-10

Applicant: Apple Inc.

Inventor： Geoffrey R. Hall ,  Franco Travostino ,  Padmavathy Bhooma ,  Venkateswara Rao Manepalli ,  Sarma V. Vangala

IPC: H04W52/02 ,  H04L12/26 ,  H04L12/24

Abstract: Apparatus and methods for estimating data traffic characteristics for applications to condition data communication channels that support data packet transfer for the applications in wireless communication devices are disclosed. Data connections to support different applications and/or daemon software processes can be established and subsequently adjusted based on data traffic characteristics for data that the different applications/daemons generate and/or consume. Traffic flows for the applications/daemons are classified into traffic classes based on likely data traffic patterns. When data sources are added or deleted, changes to a traffic class state can be determined, and wireless circuitry adjusted based at least in part on the traffic class state and a traffic class policy. Adjusting parameters that affect the periodicity and/or length of active time periods and sleep periods in accordance with estimated data traffic patterns for applications/daemons that use the data connections can reduce power consumption by the wireless circuitry.

公开(公告)号：US10264545B2

公开(公告)日：2019-04-16

申请号：US15414754

申请日：2017-01-25

Applicant: Apple Inc.

Inventor： Li Su ,  Sami M. Almalfouh ,  Venkateswara Rao Manepalli ,  Srinivas Burugupalli ,  Srinivasan Nimmala ,  Vijay Kumar Ramamurthi ,  Stephan V. Schell

IPC: H04W68/00 ,  H04W64/00 ,  H04W68/02 ,  H04W72/04 ,  H04W76/28

Abstract: Various mechanisms for paging link-budget-limited (LBL) devices are disclosed, including: (1) transmitting paging message with non-conventional paging identifier; (2) transmitting paging message(s) with increased power; (3) repeating transmission of paging message to support combining at receiver. Various mechanisms for UE device to signal LBL status are disclosed, including, transmitting status flag or special value of DRX cycle to network node as part of tracking area update and/or attach request. The network node informs a base station of the device's LBL status as part of a paging message. (The network node may, e.g., assign an S-RNTI to the LBL device from a reserved subset of S-RNTI space.) The base station invokes a paging enhancement mechanism when paging an LBL device. Alternatively, the base station may page UE devices without knowledge of LBL status, e.g., by counting paging attempts for a given UE, and boosting power after the Nth paging attempt.

公开(公告)号：US20190044662A1

公开(公告)日：2019-02-07

申请号：US16153910

申请日：2018-10-08

Applicant: Apple Inc.

Inventor： Venkateswara Rao Manepalli ,  Sarma V. Vangala

IPC: H04L1/18 ,  H04W76/30

CPC classification number: H04L1/1812 ,  H04L1/1829 ,  H04W76/30 ,  H04W76/38

Abstract: This disclosure relates to techniques for efficient sparse network resource usage and connection release procedures. According to some embodiments, a wireless device may utilize techniques for efficiently releasing a radio resource control (RRC) connection, including techniques that avoid or reduce the occurrence of random access procedures when out-of-sync with the network when the RRC connection is being released. In some embodiments, a wireless device may utilize techniques for efficiently sparsely using network uplink resources, including techniques that avoid or reduce the occurrence of random access procedures to regain timing alignment to perform uplink communication when out-of-sync with the network.

公开(公告)号：US10182392B2

公开(公告)日：2019-01-15

申请号：US16007004

申请日：2018-06-13

Applicant: Apple Inc.

Inventor： Jianxiong Shi ,  Madhusudan Chaudhary ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Venkateswara Rao Manepalli

IPC: H04W48/10 ,  H04W76/14

Abstract: This disclosure relates to broadcast information block assistance for a wireless device. The wireless device may obtain a first plurality of broadcast information blocks from a first base station. The wireless device may receive a second plurality of broadcast information blocks associated with the first base station from a source other than the first base station. The wireless device may determine if the second plurality of broadcast information blocks match the first plurality of broadcast information blocks based on version information specified in the first plurality of broadcast information blocks. When the broadcast information blocks match, the wireless device may use the first and second pluralities of broadcast information blocks to perform communication with the first base station without obtaining the second plurality of information blocks from the first base station.

公开(公告)号：US20180343686A1

公开(公告)日：2018-11-29

申请号：US15604799

申请日：2017-05-25

Applicant: Apple Inc.

Inventor： Venkateswara Rao Manepalli ,  Abhishek A. Bhonsle ,  Raghuveer Mallikarjunan ,  Sarma V. Vangala ,  Srinivas Burugupalli

IPC: H04W76/04 ,  H04W72/12 ,  H04W72/14 ,  H04M7/00 ,  H04W76/06

CPC classification number: H04W76/28 ,  H04W52/0216 ,  H04W72/12 ,  H04W76/38

Abstract: Method and apparatus of a user equipment (UE) device communicating during discontinuous reception (DRX). The UE may determine a data traffic pattern of an application executing on the UE. The UE may compare the data traffic pattern against a plurality of DRX configuration settings of a base station (BS). The UE may determine that the DRX configuration settings do not match the data traffic pattern. The UE may select a first DRX configuration setting based on the data traffic pattern. The UE may perform communication according to the first DRX configuration settings. The UE may transmit a scheduling request (SR) outside of a DRX on-duration according to the data traffic pattern. Transmitting the SR may be based on the DRX configuration settings not matching the data traffic pattern of the application. In response to transmitting the SR, the UE may receive downlink data of the application from the BS.

公开(公告)号：US20180338033A1

公开(公告)日：2018-11-22

申请号：US15981339

申请日：2018-05-16

Applicant: Apple Inc.

Inventor： Andre M. Boule ,  Andrew M. Wadycki ,  Bor-rong Chen ,  Emily C. Schubert ,  Srinivasan Nimmala ,  Sunny K. Chow ,  Gunes Dervisoglu ,  Venkateswara Rao Manepalli ,  Vijay Kumar Ramamurthi ,  Anh N. Phan ,  Maulik V. Choksi ,  John D. Blackwell ,  Xiao Xiao ,  Xiaoyuan Tu ,  Hung A. Pham ,  Richard B. Warren ,  Ronald K. Huang

IPC: H04M1/725 ,  G01S19/52 ,  H04W84/12

CPC classification number: H04M1/72577 ,  G01S19/52 ,  H04M1/663 ,  H04M1/72566 ,  H04M1/72569 ,  H04M1/72572 ,  H04M2250/12 ,  H04W84/12

Abstract: Systems, methods, and computer-readable media for managing or classifying movement states of an electronic device are provided that may utilize communications circuitry data from one or more communications circuitries when determining a current or future movement state of an electronic device.

公开(公告)号：US20180332506A1

公开(公告)日：2018-11-15

申请号：US15593686

申请日：2017-05-12

Applicant: Apple Inc.

Inventor： Venkateswara Rao Manepalli ,  Paul V. Flynn ,  Artiom Shamis ,  Thanigaivelu Elangovan ,  Vijay Venkataraman ,  Ajoy K. Singh ,  Veerendra Boodannavar

IPC: H04W36/00 ,  H04W48/16

CPC classification number: H04W36/0022 ,  H04W48/16 ,  H04W84/12 ,  H04W88/06

Abstract: Embodiments for performing a fast return to Wi-Fi following completion of a cellular voice call are provided. These embodiments include detecting that a device has switched from communicating over a Wi-Fi interface to communicating over a cellular interface; determining the earliest time that the device can switch back to Wi-Fi; and instituting the switch. In some embodiments, the process of performing a fast return to Wi-Fi is carried out by devices having small form factors, such as smartwatches and other wearables, which may be susceptible to coexistence and peak power problems. The fast return to Wi-Fi embodiments disclosed herein allow a device to perform a voice call over a cellular interface when Wi-Fi calling is not available, and switch over to a Wi-Fi interface immediately upon completion of the voice call in order to conserve battery life, achieve higher data speeds, and avoid high costs associated with cellular data transmissions.

公开(公告)号：US10122500B2

公开(公告)日：2018-11-06

申请号：US15236802

申请日：2016-08-15

Applicant: Apple Inc.

Inventor： Venkateswara Rao Manepalli ,  Sarma V. Vangala

IPC: H04W76/30 ,  H04L1/18 ,  H04W76/38

Abstract: This disclosure relates to techniques for efficient sparse network resource usage and connection release procedures. According to some embodiments, a wireless device may utilize techniques for efficiently releasing a radio resource control (RRC) connection, including techniques that avoid or reduce the occurrence of random access procedures when out-of-sync with the network when the RRC connection is being released. In some embodiments, a wireless device may utilize techniques for efficiently sparsely using network uplink resources, including techniques that avoid or reduce the occurrence of random access procedures to regain timing alignment to perform uplink communication when out-of-sync with the network.

公开(公告)号：US20180213382A1

公开(公告)日：2018-07-26

申请号：US15876582

申请日：2018-01-22

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Lydi Smaini ,  Ronald W. Dimpflmaier ,  Matthias Sauer ,  Venkateswara Rao Manepalli

IPC: H04W4/80 ,  H04W8/00 ,  H04W72/12 ,  H04W76/14 ,  H04L29/08

CPC classification number: H04W4/80 ,  H04L67/04 ,  H04L67/1068 ,  H04L67/12 ,  H04W4/70 ,  H04W8/005 ,  H04W72/121 ,  H04W76/14

Abstract: This disclosure relates to techniques for supporting narrowband device-to-device wireless communication, including possible techniques for performing discovery in an off grid radio system. A wireless device may obtain synchronization with a peer-to-peer communication group. The wireless device may determine the location of the wireless device within the peer-to-peer communication group based at least in part on signal strength of a synchronization signal used to obtain the synchronization. The wireless device may perform peer-to-peer discovery in the peer-to-peer communication group, such that time and frequency resources used by the wireless device to perform the peer-to-peer discovery are determined based at least in part on the location of the first wireless device within the peer-to-peer communication group.

公开(公告)号：US20180049030A1

公开(公告)日：2018-02-15

申请号：US15671614

申请日：2017-08-08

Applicant: Apple Inc.

Inventor： Venkateswara Rao Manepalli ,  Srinivasan Nimmala ,  Farouk Belghoul

IPC: H04W12/08 ,  H04W36/00 ,  H04W12/06 ,  H04W76/02 ,  H04W48/16 ,  H04W76/06 ,  H04W36/08

CPC classification number: H04W12/08 ,  H04W12/06 ,  H04W36/0061 ,  H04W36/08 ,  H04W36/38 ,  H04W48/16 ,  H04W76/18 ,  H04W76/30

Abstract: This disclosure relates to techniques for securely performing connection release and network redirection in a wireless communication system. A wireless device may establish a radio resource control (RRC) connection with a first cell. The wireless device may receive a RRC connection release message from the first cell. The RRC connection release message may include an indication to redirect the wireless device to a second cell. The RRC connection with the first cell may be released. It may be determined whether security has been established with the first cell when the indication to redirect the wireless device to the second cell is received. A new serving cell may be selected based at least in part on whether security has been established with the first cell when the indication to redirect the wireless device to the second cell is received.