CARRIER-SENSING TECHNIQUES FOR LTE-BASED TRANSMISSIONS OVER UNLICENSED CARRIERS

    公开(公告)号:US20180049241A1

    公开(公告)日:2018-02-15

    申请号:US15558003

    申请日:2015-12-24

    Abstract: Carrier-sensing techniques for LTE-based transmissions over unlicensed carriers are described. In one embodiment, for example, an apparatus may comprise at least one memory and logic for user equipment (UE), at least a portion of the logic comprised in circuitry coupled to the at least one memory, the logic to cause the UE to receive an uplink (UL) grant indicating a transmit subframe, the transmit subframe to comprise a subframe during which the UE is authorized to perform UL transmission via an unlicensed carrier, the logic to cause the UE to determine whether the UL grant comprises a listen-before-talk (LBT)-contingent UL grant and in response to a determination that the UL grant comprises an LBT-contingent UL grant, identify an LBT interval for the transmit subframe and perform an LBT procedure during the LBT interval to determine whether the unlicensed carrier is idle. Other embodiments are described and claimed.

    INTERLACES ALLOCATION AND INDICATION
    4.
    发明申请

    公开(公告)号:US20190068347A1

    公开(公告)日:2019-02-28

    申请号:US16072132

    申请日:2017-02-16

    Abstract: An apparatus for use in an eNB, the apparatus includes circuitry to generate an assignment of one or more interlaces to a UE within a cell managed by the eNB, where the one or more interlaces are selected from a total number of interlaces, and an interlace of the total number of interlaces may include multiple resource blocks spanning within a system bandwidth. The circuitry included in the apparatus is further to encode the assignment by a bit string including one or more bits, which may be a bitmap or an encoding bit string. The circuitry included in the apparatus is further to transmit the bit string to the UE. Other embodiments may also be described and claimed.

    DYNAMIC HARQ CONFIGURATION AND BITMAP BASED ACK/NACK

    公开(公告)号:US20180294924A1

    公开(公告)日:2018-10-11

    申请号:US15766466

    申请日:2016-12-09

    Abstract: The present disclosure provides for a user equipment (UE) operating in an unlicensed spectrum in time division duplex (TDD). Operating a UE in an unlicensed spectrum in TDD can comprise generating a bitmap message. Generating a bitmap message can include accessing a bitmap comprising a plurality of positions based on a plurality of supported HARQ processes including the HARQ process, mapping a HARQ process identifier (ID) of the HARQ process to a position from the plurality of positions of the partitioned bitmap, and generating a bitmap message comprising the ACK/NACK message in the position of the bitmap corresponding to the HARQ process ID.

    DYNAMIC SPECTRUM ACCESS WITH FLEXIBLE BANDWIDTH FOR LICENSED SHARED ACCESS SYSTEMS

    公开(公告)号:US20180206214A1

    公开(公告)日:2018-07-19

    申请号:US15742481

    申请日:2016-04-01

    Abstract: An eNB (or other base station) comprising one or more processors may generate a plurality of channel status activation indicators. The eNB's processors may encode the plurality of indicators into a Downlink Control Information (DCI) codeword, may scramble the cyclic redundancy check bits of the DCI with a predetermined sequence, and may generate the DCI codeword to the UE as part of a DCI transmission on a physical control channel. A UE (or other mobile handset) comprising one or more processors may process a DCI transmission from the eNB, the DCI transmission including a DCI codeword. The UE's processors may decode a plurality of channel status activation indicators from the DCI codeword, may check if the cyclic redundancy bits of the DCI are scrambled with a predetermined sequence, and may trigger a plurality of physical layer activation-and-deactivation circuitries based on the plurality of channel status activation indicators.

    LISTEN BEFORE TALK PROTOCOL SELECTION
    9.
    发明申请
    LISTEN BEFORE TALK PROTOCOL SELECTION 审中-公开
    听TALK协议选择之前听

    公开(公告)号:US20170034851A1

    公开(公告)日:2017-02-02

    申请号:US15124953

    申请日:2015-04-27

    CPC classification number: H04W74/0808 H04W16/14

    Abstract: Embodiments of the present disclosure describe apparatuses and methods for determining a listen before talk (LBT) protocol to be used in a long term evolution unlicensed spectrum environment, wherein the LBT protocol is based at least in part on a transmitter-based LBT protocol or a receiver-aided LBT protocol. Other embodiments may be described and/or claimed.

    Abstract translation: 本公开的实施例描述了用于确定要在长期演进非许可频谱环境中使用的在线聆听(LBT)协议的装置和方法,其中所述LBT协议至少部分地基于基于发射机的LBT协议或 接收器辅助LBT协议。 可以描述和/或要求保护其他实施例。

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