公开(公告)号：US20210352582A1

公开(公告)日：2021-11-11

申请号：US16480784

申请日：2018-08-10

Applicant: Apple Inc.

Inventor： Wei Zeng ,  Dawei Zhang ,  Haitong Sun ,  Wei Zhang ,  Tianyan Pu ,  Yuchul Kim ,  Yuqin Chen ,  Farouk Belghoul ,  Haijing Hu ,  Fangli Xu ,  Sami M. Almalfouh

IPC: H04W52/02 ,  H04W74/08 ,  H04W74/00 ,  H04W72/04

Abstract: This disclosure relates to using a wake up signal in conjunction with cellular communication in unlicensed spectrum. A cellular base station may provide a wake up signal on an unlicensed frequency channel after successful completion of a listen-before-talk procedure. The wake up signal may include a preamble configured for coherent detection, and information indicating channel occupancy time for a cellular communication by the cellular base station and a cell identifier for the cellular base station. A wireless device may monitor the unlicensed frequency channel for a wake up signal, and may determine whether to monitor the unlicensed frequency channel for control channel signaling based on whether a wake up signal is received, and potentially also based on the contents of the wake up signal if a wake up signal is received.

公开(公告)号：US20210345238A1

公开(公告)日：2021-11-04

申请号：US17144398

申请日：2021-01-08

Applicant: Apple Inc.

Inventor： Firouz Behnamfar ,  Faraz Faheem ,  Farouk Belghoul ,  Rema Vaidyanathan

IPC: H04W52/00 ,  H04W4/20 ,  G06F1/28 ,  G06F1/20 ,  G06F1/3296

Abstract: Techniques discussed herein can facilitate power management at a User Equipment (UE) via selection of a power management stage based on a current power status. One example aspect is a UE comprising one or more processors configured to: monitor a temperature of the UE via one or more temperature sensors and a power usage of the UE; determine a power status of the UE based at least in part on the temperature of the UE and the power usage of the UE; select, based at least in part on the determined power status, a power management stage of a plurality of power management stages; and implement one or more power management techniques associated with the selected power management stage. A notification can be triggered to alert a user that the processor is implementing the one or more power management techniques prior to implementation.

公开(公告)号：US20210345185A1

公开(公告)日：2021-11-04

申请号：US16863522

申请日：2020-04-30

Applicant: APPLE INC.

Inventor： Sree Ram Kodali ,  Farouk Belghoul ,  Shashikant Tiwari ,  Sridhar Prakasam ,  Vijay Venkataraman

IPC: H04W36/00 ,  H04W76/38

Abstract: Re-connecting to a first radio access network (RAN) of a first radio access technology (RAT) may include initially connecting to the first RAN. A connection associated with a voice call may then be connected that includes connecting to a RAN of a second RAT. In response to the voice call connecting to the second RAN, information for both a frequency and a cell associated with connecting to the first RAN may be stored. An end to the voice call may be identified. In response to determining that the voice call has ended, a timer may be generated at the UE that comprises a specified time period and the timer and the information stored for both the frequency and the cell associated with connecting to the first RAN may be utilized to re-connect to the first RAN.

公开(公告)号：US11122565B2

公开(公告)日：2021-09-14

申请号：US16711950

申请日：2019-12-12

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04W74/08 ,  H04W72/12 ,  H04L1/18 ,  H04L5/14 ,  H04L5/00

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：US11071007B2

公开(公告)日：2021-07-20

申请号：US16043192

申请日：2018-07-24

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Christian W. Mucke ,  Ehsan E. Haghani

IPC: H04W76/28 ,  H04W28/02 ,  H04W8/00 ,  H04W16/14 ,  H04W4/70 ,  H04W76/14 ,  H04W4/20 ,  H04W92/18 ,  H04W76/20 ,  H04W48/10 ,  H04W80/00 ,  H04L29/08

Abstract: This disclosure relates to techniques for supporting cross functional signaling for device-to-device wireless communication, such as an off grid radio system. According to some embodiments, a first wireless device may initiate, modify, and/or close a device-to-device wireless communication session with a second wireless device using session management signaling associated with a protocol layer (possibly a higher layer, such as a layer supported by an application processor) of the first wireless device. The wireless device may provide indications of session initiation, modification, and/or closing from the protocol layer used to exchange the session management signaling to another protocol layer (possibly a lower layer, such as a layer supported by a baseband processor) of the first wireless device.

公开(公告)号：US11064366B2

公开(公告)日：2021-07-13

申请号：US16699955

申请日：2019-12-02

Applicant: Apple Inc.

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

IPC: H04W16/14 ,  H04W24/02 ,  H04W24/08 ,  H04W48/16 ,  H04W84/12

Abstract: A wireless communication device may conduct first wireless communications over a first frequency band according to a first radio access technology (RAT), and may detect second wireless communications conducted over the first frequency band according to a second RAT while the wireless communication device is conducting the first wireless communications. The wireless communication device may then adjust characteristics and/or parameters associated with the first wireless communications based on the detected second wireless communications. In a specific example, a wireless communication device conducting Wi-Fi communications in the 5 GHz band may detect cellular communications (e.g. LAA/LTE-U communications) also conducted in the 5 GHz band while the wireless communication device is conducting the Wi Fi communications. The wireless communication device may then adjust characteristics and/or parameters associated with its Wi-Fi communications based on the detected signals/frequencies of the cellular (LAA/LTE-U) communications.

公开(公告)号：US20210013911A1

公开(公告)日：2021-01-14

申请号：US17033121

申请日：2020-09-25

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Tideya Kella ,  Ehsan Haghani

IPC: H04B1/00 ,  H04B17/318 ,  H04B1/40

Abstract: A circuit component may determine whether first signal indicative of at least one of the plurality of communication interface circuits accessing the FEM during a respective communication slot associated with the FEM has been received, determine a first Received Signal Strength Indicator (RSSI) value for the respective communication slot used by the FEM based on data associated with the respective communication slot, and store the first RSSI value in response to the first signal not being received. The circuit component may then determine a first gain for a subsequent slot based on the first RSSI value and discard the first RSSI value in response to the first signal being received.

公开(公告)号：US20200374662A1

公开(公告)日：2020-11-26

申请号：US16988405

申请日：2020-08-07

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Christian W. Mucke ,  Rafael L. Rivera-Barreto ,  Ayman F. Naguib ,  Rohan C. Malthankar ,  Ben-Heng Juang ,  Kushal M. Chawda ,  Sumit Saxena

IPC: H04W4/06 ,  G06N20/00 ,  H04W4/029 ,  H04L12/18

Abstract: A network controller, a user equipment (UE) device, and associated methods for conducting intelligent enhanced multimedia broadcast multicast services (eMBMS). A network controller receives user preference information and location information from a plurality of UEs. The network controller selects one or more data packages to transmit using eMBMS in one or more broadcast regions based on the user preference information and the location information. The one or more data packages may comprise an updated machine learning model in a distributed learning application. The network controller provides an indication to a remote device to broadcast the one or more data packages in the respective one or more broadcast regions using eMBMS.

公开(公告)号：US20200304282A1

公开(公告)日：2020-09-24

申请号：US16892901

申请日：2020-06-04

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  S. Aon Mujtaba ,  Dawei Zhang

IPC: H04L7/00 ,  H04L5/00 ,  H04L12/26

Abstract: This disclosure relates to using a dedicated reference subframes in a cellular communication system. According to one embodiment, a base station may transmit reference signals in a dedicated synchronization and measurement reference subframe. Neighboring base stations may also transmit reference signals in dedicated reference subframes in a temporally coordinated (synchronized) manner. The reference signals transmitted be each base station may be orthogonal with the reference signals transmitted by each neighboring base station. The reference subframes may be transmitted periodically, and data subframes may be transmitted between reference subframes. Some or all of the data subframes may not include cell-specific reference symbols, as their function may be unnecessary given the use of the dedicated reference subframes.

公开(公告)号：US10772015B2

公开(公告)日：2020-09-08

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 ,  H04B17/336 ,  H04B17/382

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.