Simultaneous operation of multiple time division duplex links using a single transceiver

    公开(公告)号:US10917222B2

    公开(公告)日:2021-02-09

    申请号:US14503280

    申请日:2014-09-30

    Applicant: Apple Inc.

    Abstract: Apparatus and methods for performing simultaneous time division duplex (TDD) communications are disclosed. A wireless communication device can be configured to establish both a first TDD communication link and a second TDD communication link with a network, such as a telecommunication network. Thereafter, the wireless communication device can send TDD uplink data to the network via the first TDD communication link, and receive TDD downlink data from the network via the second TDD communication link, such that a portion of the TDD uplink data is sent to the network at the same time a portion of the TDD downlink data is received from the network. In this manner, the transmissions of TDD uplink data and the TDD downlink data can occur simultaneously, via multiple communication links. Further, the TDD downlink data can be received in multiple, coordinated data transmissions using Long Term Evolution (LTE) multiple-input and multiple-output (MIMO) antenna diversity.

    Antenna array uplink sector selection and deselection based on coexistence with other in-device radios

    公开(公告)号:US10187807B2

    公开(公告)日:2019-01-22

    申请号:US15272196

    申请日:2016-09-21

    Applicant: Apple Inc.

    Abstract: Systems, methods, and devices are provided for performing an antenna sector level sweep of a radio in a radio frequency system with co-existence of other radios. The method may involve sending a first command to a portion of a plurality of radios to determine a first set of signal quality metrics associated with the portion of the plurality of radios for one or more sectors of an antenna while the first radio is not active. The method may involve determining a second set of signal quality metrics associated with using the portion of the plurality of radios when the first radio is active via one or more sectors of a sector level sweep. The method also include generating a table that includes the second set of signal quality metrics and storing the table that indicates a portion of the sectors to avoid when the first radio performs a subsequent sweep.

    Adaptive antenna selection for interference mitigation

    公开(公告)号:US10135484B2

    公开(公告)日:2018-11-20

    申请号:US15651588

    申请日:2017-07-17

    Applicant: Apple Inc.

    Abstract: This disclosure relates to performing antenna selection to reduce interference in a wireless device. According to some embodiments, it may be determined whether simultaneous communication according to first and second wireless communication technologies causes performance degradation to a third wireless communication technology. If the simultaneous communication according to first and second wireless communication technologies does cause performance degradation to the third wireless communication technology, selection of antenna(s) used for the communications may be based at least in part on the determination that the simultaneous communication according to the first and second wireless communication technologies causes performance degradation to the third wireless communication technology.

    ANTENNA ARRAY UPLINK SECTOR LEVEL SWEEP TO ALLOW COEXISTENCE WITH OTHER IN-DEVICE RADIOS

    公开(公告)号:US20180084438A1

    公开(公告)日:2018-03-22

    申请号:US15272185

    申请日:2016-09-21

    Applicant: Apple Inc.

    CPC classification number: H04W16/28 H04B7/088 H04B17/318

    Abstract: A method for operating a first radio of a number of radios within a radio frequency system may include sending a first command to the first radio of the plurality of radios to initiate an antenna sector level sweep and determining a first set of metrics associated with a first set of signals from other radios of the plurality of radios that correspond to the antenna sector level sweep. The method may also include receiving a second set of metrics associated with the first set of signals from a responder electronic device and identifying a sector of a number of sectors associated with the antenna sector level sweep based on the first set of metrics and the second set of metrics. The method may then involve sending a second command to the first radio to transmit data to the responder device via the identified sector.

    Adaptive Antenna Selection for Interference Mitigation

    公开(公告)号:US20170093457A1

    公开(公告)日:2017-03-30

    申请号:US14870087

    申请日:2015-09-30

    Applicant: Apple Inc.

    Abstract: This disclosure relates to perfoming antenna selection to reduce interference in a wireless device. According to some embodiments, it may be determined whether simultaneous communication according to first and second wireless communication technologies causes performance degradation to a third wireless communication technology. If the simultaneous communication according to first and second wireless communication technologies does cause performance degradation to the third wireless communication technology, selection of antenna(s) used for the communications may be based at least in part on the determination that the simultaneous communication according to the first and second wireless communication technologies causes performance degradation to the third wireless communication technology.

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