CONTENTION-BASED RANDOM ACCESS IN UNLICENSED SPECTRUM

    公开(公告)号:US20190069323A1

    公开(公告)日:2019-02-28

    申请号:US16173354

    申请日:2018-10-29

    Abstract: The disclosure provides a method and system for requesting access to resources for uplink communications in unlicensed spectrum. In particular, a user equipment (UE) may detect one or more of a first type of data or a second type of data to be transmitted to a base station (BS). The UE may then determine if a first type of physical random access channel (PRACH) resource is available for transmitting one or more of the first type of data or the second type of data to the BS. If the first type of PRACH resource is available, then the UE may transmit one or more of the first type of data or the second type of data using the first type of PRACH resource. If the first type of PRACH resource is not available, then the UE may transmit the second type of data using a second type of PRACH resource.

    SPECTRUM RENTING NEGOTIATION
    243.
    发明申请

    公开(公告)号:US20180317093A1

    公开(公告)日:2018-11-01

    申请号:US15800363

    申请日:2017-11-01

    CPC classification number: H04W16/14 H04W28/16 H04W74/0816 H04W74/0875

    Abstract: Wireless communication systems and methods related to spectrum use negotiations are provided. A first wireless communication device transmits, to a controlling entity of a spectrum, a spectrum use request for a local operator to use the spectrum for a time period. The first wireless communication device receives, from the controlling entity, a spectrum use grant indicating that the local operator is promoted from a first priority to a second priority for accessing the spectrum during the time period. The first wireless communication device communicates with a second wireless communication device in the spectrum during the time period based on the second priority, where at least the first wireless communication device or the second wireless communication device is associated with the local operator.

    TRANSMISSION SCHEDULING FOR CONTENTION BASED CARRIER

    公开(公告)号:US20180235000A1

    公开(公告)日:2018-08-16

    申请号:US15955471

    申请日:2018-04-17

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. A base station transmits a provisional grant uplink assignment to a set of UEs. When a UE receives the provisional grant uplink assignment, the UE performs a clear channel assessment (CCA) operation on a secondary component carrier (SCC) based on the provisional grant UL assignment, the SCC being a contention-based carrier. Then, the UE transmits a schedule request (SR) on the SCC when the CCA operation succeeds. The base station transmits grant confirmation(s) on the SCC in response to the detected SR(s). Once the UE receives a grant confirmation on the SCC in response to the SR, the UE transmits data on the SCC.

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