LONG-TERM EVOLUTION AND NEW RADIO SIDELINK CO-CHANNEL COEXISTENCE

    公开(公告)号:US20250031201A1

    公开(公告)日:2025-01-23

    申请号:US18714754

    申请日:2022-01-19

    Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) and a base station may establish communications using a first radio access technology (RAT). The first UE may receive control signaling indicating a configuration for a coexistence of resources between the first RAT and a second RAT, the coexistence of resources indicating an initial quantity of UEs in a system that use the first RAT or the second RAT. During a measurement period, the first UE may measure a control channel (e.g., a sidelink control channel) of the second RAT and determine an initial partition of the resources. The initial partition of the resources may indicate a quantity of resources to be used for transmissions by the first UE and the second UE. For example, a first group of the initial partition of the resources may be associated with the second RAT.

    SIDELINK RESOURCE SELECTION IN UNLICENSED SPECTRUM

    公开(公告)号:US20230389053A1

    公开(公告)日:2023-11-30

    申请号:US18249534

    申请日:2021-12-09

    CPC classification number: H04W72/40 H04L5/001 H04W16/14 H04W72/0453

    Abstract: Methods, systems, and devices for wireless communication are described to support selection of an unoccupied sidelink resource associated with a higher communication quality in a shared spectrum. User equipments (UEs) operating in shared spectrum may be configured with a set of candidate carriers for sidelink communications using the shared spectrum. A transmitting UE may select a number of resources for a sidelink transmission that are available in a same transmission time occasion and on multiple carriers of the set of carriers. The UE may perform a channel access procedure for each carrier of the multiple carriers prior to the transmission time occasion and may transmit a sidelink communication on at least one selected resource if the channel access procedure succeeds in at least one of the carriers of the multiple carriers.

    DEVICE ACCESS IN UNLICENSED BAND
    19.
    发明公开

    公开(公告)号:US20230209601A1

    公开(公告)日:2023-06-29

    申请号:US17996503

    申请日:2020-12-28

    CPC classification number: H04W74/0816 H04W16/14

    Abstract: Certain aspects of the present disclosure provide techniques for sidelink communications in an unlicensed spectrum. A method that may be performed by a user equipment (UE) includes measuring, starting at least at a start time of a time interval, a frequency band to determine whether the frequency band is idle, the time interval including a plurality of time periods. While measuring the frequency band, decoding, by the UE, any signals received on the frequency band to determine if a clear-to-send (CTS) signal is received over the frequency band.

    SUBCHANNEL-BASED LISTEN BEFORE TALK FOR UNLICENSED CHANNEL ACCESS

    公开(公告)号:US20230189336A1

    公开(公告)日:2023-06-15

    申请号:US17999350

    申请日:2021-07-15

    CPC classification number: H04W74/0808

    Abstract: Certain aspects of the present disclosure provide techniques for subchannel-based listen before talk (LBT). An example method that may be performed by a user equipment (UE) includes receiving one or more transmissions indicating one or more allocated subchannels of a frequency band that are allocated during a first time period, the frequency band comprising the one or more allocated subchannels and one or more unallocated subchannels during the first time period; sensing the one or more unallocated subchannels for at least a portion of the first time period prior to a second time period; and transmitting a signal within the frequency band during the second time period based on energy sensed for the one or more unallocated subchannels being less than a threshold.

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