公开(公告)号：US20200183870A1

公开(公告)日：2020-06-11

申请号：US16584686

申请日：2019-09-26

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Paul V. Flynn ,  Tideya Kella ,  Vijay Kumar Ramamurthi

IPC: G06F13/40 ,  H04L29/08 ,  H04L12/40

Abstract: Circuits, methods, and apparatus that can allow chipsets in an electronic device to share information such that they can more efficiently utilize resources that are available in the electronic device. One example can provide a bus that is shared by three or more chipsets in an electronic device. This shared bus can be used by the chipsets in the electronic device to communicate and negotiate for the utilization of resources of the electronic device.

公开(公告)号：US10568091B2

公开(公告)日：2020-02-18

申请号：US15887798

申请日：2018-02-02

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Christian W. Mucke ,  Awais M. Hussain

IPC: H04W72/04 ,  H04W74/08 ,  H04W72/12

Abstract: This disclosure relates to performing cellular communication in unlicensed spectrum using a flexible slot structure. A cellular base station may perform a listen-before-talk procedure, and may transmit a reservation frame when the listen-before-talk procedure is successful. The reservation frame may reserve a wireless medium for a transmit opportunity. Transmission slots may be scheduled for communication with one or more wireless devices during the transmit opportunity. The transmission slots may be selected from multiple possible uplink transmission slot types and multiple possible downlink transmission slot types. Indications of the scheduled transmission slots, including indications of slot types of the scheduled transmission slots, may be provided to the wireless devices. Wireless communication may be performed between the cellular base station and the wireless devices according to the scheduled transmission slots.

公开(公告)号：US10440765B2

公开(公告)日：2019-10-08

申请号：US14862735

申请日：2015-09-23

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Tarik Tabet ,  Dawei Zhang

IPC: H04W76/15 ,  H04W28/08 ,  H04W28/02 ,  H04W36/28 ,  H04W36/14 ,  H04W84/12 ,  H04W88/06 ,  H04W76/16

Abstract: This disclosure relates to aggregation of radio resources provided according to multiple radio interfaces. According to some embodiments, a base station may establish a radio bearer with a wireless user equipment (UE) device. The radio bearer may initially utilize a first radio interface between the base station and the UE. The base station may receive an indication to aggregate radio resources of an access point that utilizes a second radio interface for the UE. Based on the indication to aggregate radio resources for the UE, the base station may redirect at least a portion of data of the radio bearer by way of the access point to be exchanged with the UE using the second radio interface.

公开(公告)号：US10433211B2

公开(公告)日：2019-10-01

申请号：US15593702

申请日：2017-05-12

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Lydi Smaini ,  Tarik Tabet ,  Syed Aon Mujtaba

IPC: H04W28/08 ,  H04W16/14 ,  H04W72/04

Abstract: A wireless communication device (UE) may monitor grants received from respective cells associated with one or more first (e.g. licensed) frequency band(s) and one or more second (e.g. unlicensed) frequency band(s). Based on the received grants the UE may determine if an imbalance exists in the radio resource allocation, whereby the UE communicates more than intended in the second frequency band(s). The imbalance may be specified with respect to the ratio or portion of the communications that are conducted in the second frequency band(s) with respect to all wireless communications of the UE. If the UE detects an imbalance, it may transmit a report to the network (e.g. to the base station serving the UE) indicating unfavorable conditions for the UE to be operating in the second frequency band(s). In response, the network may disable the respective cell(s) associated with the second frequency band(s) and/or it may disable carrier aggregation for the UE.

公开(公告)号：US20190082443A1

公开(公告)日：2019-03-14

申请号：US16128415

申请日：2018-09-11

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Christiaan A. Hartman ,  Daniel R. Borges ,  Jarkko L. Kneckt ,  Oren Shani ,  Tushar R. Shah ,  Xiaowen Wang ,  Yong Liu ,  Christian W. Mucke ,  Joseph Hakim ,  Farouk Belghoul ,  Ayman F. Naguib ,  Karan Sanghi ,  Cahya Adiansyah Masputra

IPC: H04W72/12 ,  H04W28/02

Abstract: An electronic device that determines a transmission schedule is described. This electronic device may include an interface circuit that communicates with a recipient electronic device. During operation, the electronic device may receive a frame with scheduling-request information that is associated with the recipient electronic device. The scheduling-request information may include a buffer status report for persistent traffic, and the frame may be compatible with an IEEE 802.11 communication protocol. For example, the frame may include a scheduling-request management frame. Alternatively, the frame may include a data frame and the scheduling-request information may be included in a media access control (MAC) frame header, such as a high-efficiency (HE) variant high-throughput (HT) control header. Then, the electronic device may determine the transmission schedule based at least in part on the scheduling-request information.

公开(公告)号：US20180376383A1

公开(公告)日：2018-12-27

申请号：US15919371

申请日：2018-03-13

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Christian W. Mucke ,  Thierry Derand

IPC: H04W36/00 ,  H04W76/15 ,  H04W36/06

Abstract: Apparatuses, systems, and methods for a wireless device to manage an uplink bearer that utilizes concurrent inter-RAT dual uplink connectivity to avoid packet loss during bearer switch, handover, and/or radio link failure occasions. The wireless device may establish a first wireless link according to a first radio access technology (RAT) and a second wireless link according to a second RAT. A data bearer may be established that utilizes both the first wireless link and the second wireless link. Uplink data packets of the data bearer that are provided to a protocol stack for the second RAT may be stored in a buffer. The second wireless link may be lost. The stored uplink data packets that were provided to the protocol stack for the second RAT may be provided to a protocol stack for the first RAT based at least in part on the second wireless link being lost.

公开(公告)号：US20180324659A1

公开(公告)日：2018-11-08

申请号：US16037788

申请日：2018-07-17

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto ,  David Boettger ,  Awais M. Hussain ,  Syed Aon Mujtaba

IPC: H04W36/00 ,  H04B17/382 ,  H04B17/336

CPC classification number: H04W36/0083 ,  H04B17/336 ,  H04B17/382 ,  H04W36/0058 ,  H04W36/00837

Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.

公开(公告)号：US20180324658A1

公开(公告)日：2018-11-08

申请号：US16037732

申请日：2018-07-17

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto ,  David Boettger ,  Awais M. Hussain ,  Syed Aon Mujtaba

IPC: H04W36/00 ,  H04B17/382 ,  H04B17/336

Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.

公开(公告)号：US09832686B2

公开(公告)日：2017-11-28

申请号：US14791687

申请日：2015-07-06

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  David Boettger ,  Krisztian Kiss ,  Dawei Zhang ,  Tarik Tabet ,  Rafael L. Rivera-Barreto ,  Huarui Liang

IPC: H04L12/28 ,  H04W36/00 ,  H04W76/04 ,  H04W48/16 ,  H04W36/14 ,  H04W48/18 ,  H04W88/06

CPC classification number: H04W36/0022 ,  H04W36/0083 ,  H04W36/14 ,  H04W48/16 ,  H04W48/18 ,  H04W76/27 ,  H04W88/06

Abstract: Mobile devices, base stations, and/or relay stations may implement CSFB (circuit switched fallback) operations by using RRC (radio resource control) connection release and/or handover procedures. If the CSFB RAT (radio access technology) target is not well configured, the UE may be informed and provisioned by the NW during a CSFB procedure with the information to return to LTE. Having this information, the UE may perform an autonomous search of LTE cells after the CSFB call release, speeding up return to LTE. To minimize potential call failures during CSFB, the UE may autonomously perform an additional cell search, in particular a search for cells on a RAT different from the initial target RAT. This creates an opportunity to prevent call failure of CSFB calls that would otherwise fail. The UE may be provisioned during the CSFB procedure with information to perform the additional cell search, should such a search be necessary.

公开(公告)号：US09713154B2

公开(公告)日：2017-07-18

申请号：US15385551

申请日：2016-12-20

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Dawei Zhang ,  Huarui Liang

IPC: H04W72/04 ,  H04M11/06 ,  H04L5/00 ,  H04W8/00 ,  H04W72/12 ,  H04W84/12 ,  H04W88/06

CPC classification number: H04W72/0453 ,  H04L5/0048 ,  H04L5/0098 ,  H04L27/0006 ,  H04M11/062 ,  H04W8/005 ,  H04W72/0406 ,  H04W72/12 ,  H04W84/12 ,  H04W88/06 ,  H04W88/10

Abstract: This disclosure relates to Wi-Fi signaling in conjunction with cellular communication in unlicensed frequency bands for efficient co-existence. According to one embodiment, a cell may be established between a cellular base station and a wireless user equipment device on a frequency channel in an unlicensed frequency band. A cellular communication may be scheduled between the base station and the user equipment device. A Wi-Fi signal may be transmitted on the frequency channel in conjunction with the scheduled cellular communication. The Wi-Fi signal may indicate a length of the scheduled cellular communication using Wi-Fi signaling. The scheduled cellular communication may be performed via the cell.