公开(公告)号：US10313941B2

公开(公告)日：2019-06-04

申请号：US15177802

申请日：2016-06-09

Applicant: APPLE INC.

Inventor： Venkateswara Rao Manepalli ,  Lakshmi N. Kavuri ,  Madhusudan Chaudhary ,  Srinivasan Nimmala ,  Jianxiong Shi

IPC: H04W36/00 ,  H04W36/14 ,  H04W76/19 ,  H04W76/38 ,  H04W36/24 ,  H04W84/12 ,  H04W4/80

Abstract: Described herein are apparatus, systems and methods for improved mobility between wireless networks. A method may comprise, at a user equipment (“UE”) in communication with a cellular network activating a detach timer for the cellular network, detecting a short-range network, communicating with the short-range network, storing registration and bearer context data related to the cellular network, interrupting communication with the cellular network, and prior to the expiration of the detach timer, reconnecting to the cellular network via a service request without using an attach procedure.

公开(公告)号：US20190166560A1

公开(公告)日：2019-05-30

申请号：US16261828

申请日：2019-01-30

Applicant: Apple Inc.

Inventor： Li Su ,  Stephan V. Schell ,  Jianxiong Shi ,  Sami M. Almalfouh

IPC: H04W52/02 ,  H04J3/16 ,  H04W72/02

CPC classification number: H04W52/0251 ,  H04J3/1694 ,  H04W52/0261 ,  H04W52/0277 ,  H04W72/02 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/25 ,  Y02D70/26

Abstract: In some embodiments, a user equipment device (UE) implements improved communication methods which include radio resource time multiplexing, dynamic sub-frame allocation, and UE transmit duty cycle control. In some embodiments, the UE may communicate with base stations using radio frames that include multiple sub-frames, transmit information regarding allocation of a portion of the sub-frames of a respective radio frame for each of a plurality of the radio frames, and transmit and receive data using allocated sub-frames and not using unallocated sub-frames. In some embodiments, the UE may operate according to a sub-frame allocation based on its current power state. The UE may transmit information to the base station and receive the sub-frame allocation based on at least the information. In some embodiments, the UE may switch transmit duty cycles based on an occurrence of a condition at the UE. The UE may inform the network of the switch.

公开(公告)号：US10251095B2

公开(公告)日：2019-04-02

申请号：US15590127

申请日：2017-05-09

Applicant: Apple Inc.

Inventor： Jianxiong Shi ,  Lakshmi N. Kavuri ,  Madhusudan Chaudhary ,  Thanigaivelu Elangovan ,  Viswanath Nagarajan ,  Yifan Zhu

IPC: H04W36/00 ,  H04J11/00 ,  H04W36/32 ,  H04W36/36 ,  H04W48/16 ,  H04W48/18

Abstract: Apparatuses, systems, and methods for user equipment (UE) devices to perform more efficient frequency scans for potential base stations. According to techniques described herein, the UE may determine that it does not have cellular service and determine first information based on a last camped cell. A time period during which the first information was acquired may be determined and one or more frequency scans may be performed. The frequency scans may be limited to a set of frequencies based in part on the time period. Thus, if the time period is less than a first value, the set of frequencies may include a first set of frequencies and if the time period is greater than the first value but less than a second value, the set of frequencies may include the first set of frequencies and a second set of frequencies.

公开(公告)号：US10142871B1

公开(公告)日：2018-11-27

申请号：US15595412

申请日：2017-05-15

Applicant: APPLE INC.

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

IPC: H04W24/08 ,  H04W4/38 ,  H04W76/16 ,  G08B7/06 ,  G08B29/02 ,  H04B17/23

Abstract: A device, system, and method uses a camp only mode based on a connectivity status. The method is performed at a device that is configured to establish a first connection to a first network and configured to establish a second connection to a second network. The method includes determining the connectivity status of the device. When the connectivity status indicates that the device has established the first connection, the method includes utilizing a camp-only mode to monitor the second network, the camp-only mode reducing a frequency of at least one type of operation associated with the second network, the camp-only mode configured to retain a capability of determining whether an emergency message is being broadcast over the second network.

公开(公告)号：US20180324680A1

公开(公告)日：2018-11-08

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

CPC classification number: H04W48/10 ,  H04W4/06 ,  H04W4/80 ,  H04W76/14 ,  H04W88/04

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：US20180227880A1

公开(公告)日：2018-08-09

申请号：US15888929

申请日：2018-02-05

Applicant: Apple Inc.

Inventor： Li Su ,  Sami M. Almalfouh ,  Jianxiong Shi

IPC: H04W68/02 ,  H04W76/27 ,  H04W24/08

CPC classification number: H04W68/02 ,  H04W16/30 ,  H04W24/08 ,  H04W68/04 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/168 ,  Y02D70/20 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

Abstract: This disclosure relates to techniques for efficient idle mode wakeup for wireless devices supporting an enhanced coverage mode and a normal coverage mode in a wireless communication system. A wireless device may camp on a cellular base station in idle mode. The wireless device may monitor a control channel associated with the normal coverage mode during a paging occasion. The wireless device may also monitor a control channel associated with the enhanced coverage mode during the paging occasion if a paging indication is not successfully decoded on the control channel associated with the normal coverage mode.

公开(公告)号：US10021625B1

公开(公告)日：2018-07-10

申请号：US15584123

申请日：2017-05-02

Applicant: Apple Inc.

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

IPC: H04W4/00 ,  H04W48/10 ,  H04W76/02 ,  H04W76/14

CPC classification number: H04W48/10 ,  H04W4/06 ,  H04W4/80 ,  H04W76/14 ,  H04W88/04

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：US09974109B2

公开(公告)日：2018-05-15

申请号：US14171611

申请日：2014-02-03

Applicant: Apple Inc.

Inventor： Shivesh Makharia ,  Sree Ram Kodali ,  Longda Xing ,  Jianxiong Shi

IPC: H04W36/00 ,  H04W76/04 ,  H04W48/20

CPC classification number: H04W76/28 ,  H04W48/20

Abstract: A wireless communication system is presented in which user equipment (UE) performs non-intra-frequency (NIF) cell reselection. The NIF cell reselection process can: detect, on a discontinues reception (DRX) cycle, whether a NIF for a second cell has passed a second reselection threshold; perform, on the DRX cycle, additional checks or measurements to determine whether a higher priority NIF for a third cell has passed a third reselection threshold; and continue a cell reselection process for the second cell and the third cell. The NIF cell reselection techniques can help ensure that the UE reselects to higher priority cells without expending an unnecessary amount power.

公开(公告)号：US09848026B2

公开(公告)日：2017-12-19

申请号：US15001116

申请日：2016-01-19

Applicant: Apple Inc.

Inventor： Siegfried Lehmann ,  Christiaan A. Hartman ,  Camille Chen ,  Sriram Hariharan ,  Jianxiong Shi ,  Syed Aon Mujtaba ,  Alessio Centazzo ,  Donald Eng ,  Michael J. Giles ,  Craig P. Dooley ,  Akshay Mangalam Srivatsa ,  Anjali S. Sandesara ,  Langford M. Wasada

IPC: H04L29/06 ,  H04W4/00 ,  G06F3/02 ,  G06F1/32 ,  H04W28/06

CPC classification number: H04L65/4076 ,  G06F1/3209 ,  G06F1/3278 ,  G06F3/0227 ,  H04W4/80 ,  H04W28/06 ,  Y02D10/157

Abstract: An interface circuit in a computing device may communicate with user-interface devices using shared slots during time intervals. In particular, the computing device may transmit outgoing messages to the user-interface devices at a first predefined time during sequential time intervals when the user-interface devices transition from a sleep mode to a normal mode. In response, the computing device may receive incoming messages from one or more of the user-interface devices at a second predefined time following the first predefined time during the sequential time intervals. Then, the computing device may transmit a multicast message to the user-interface devices at a third predefined time during the sequential time intervals. In response to the given multicast message, one of the user-interface devices may communicate data to the computing device. Note that, in some instances, a multicast time slot may instead be used to communicate data to one of the user-interface devices.

公开(公告)号：US09794403B2

公开(公告)日：2017-10-17

申请号：US15219037

申请日：2016-07-25

Applicant: Apple Inc.

Inventor： Jianxiong Shi ,  Li Su

IPC: H04M3/42 ,  H04M3/428 ,  H04W76/02 ,  H04W4/16 ,  H04W52/02 ,  H04W88/06 ,  H04W8/18 ,  H04M7/00

CPC classification number: H04M3/4283 ,  H04M7/0024 ,  H04M2207/185 ,  H04W4/16 ,  H04W8/183 ,  H04W52/0229 ,  H04W76/15 ,  H04W76/16 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/25 ,  Y02D70/26

Abstract: Performing data communications by a Dual SIM Dual Active (DSDA) user equipment (UE), while simultaneously conducting two concurrent voice calls. The UE may receive a request to perform data communications while conducting a first voice call on a first radio and concurrently conducting a second voice call on a second radio. The UE may then determine whether one of the voice calls is currently on hold. The UE may perform the data communications using the radio on which the held call is being conducted. The UE may therefore dynamically select available slots from the first radio and the second radio for performing the data communication, based on which of the first radio and the second radio has a voice call that is currently on hold. In some embodiments, the data communications may be performed using a Long Term Evolution (LTE) protocol stack.