Beamforming and user equipment grouping

    公开(公告)号:US10595322B2

    公开(公告)日:2020-03-17

    申请号:US15197523

    申请日:2016-06-29

    Abstract: Methods, systems, and apparatuses are described for wireless communication at a base station. The base station may transmit a control message to a set of user equipments (UEs) using a directional transmission having a first beamform width. The base station may exchange, according to the control message, data messages with a first UE of the set of UEs using a directional transmission having a second beamform width. The second beamform width may be different from the first beamform width. The base station may exchange, according to the control message, data messages with a second UE of the set of UEs using a directional transmission having a third beamform width. The third beamform width may be different from the first beamform width, the second beamform width, or both.

    Beam and symbol selection to transmit RACH

    公开(公告)号:US10568140B2

    公开(公告)日:2020-02-18

    申请号:US15371978

    申请日:2016-12-07

    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a number of beam directions that satisfy a transmission power condition. The UE may select a beam direction for a random access signal by choosing one of the beam directions that satisfies additional criteria, such as transmitting a random access message at the next opportunity. The transmission power may be selected based on a target receive power and a path loss for the selected beam. In some cases, if the sum of the path loss for a beam direction and the target receive power exceeds a maximum transmission power by more than a predetermined amount, the random access signal will not be transmitted using that beam. In some cases, if a response to the random access is not received, a different beam direction may be selected, the transmission power may be increased, or both.

    Beam direction assisted paging
    196.
    发明授权

    公开(公告)号:US10484968B2

    公开(公告)日:2019-11-19

    申请号:US16285078

    申请日:2019-02-25

    Abstract: A first RAN may determine beamforming information for a UE served by the first RAN. Then, the first RAN may transmit, to a second RAN or a core network, paging information for the UE served by the first RAN, wherein the paging information comprises the beamforming information for the UE. A core network component, e.g., an AMF, may receive the paging information comprising the beamforming information for the UE and may send a paging request to a second RAN for the transmission of a paging message to the UE, wherein the paging request is based on the received paging information. The second RAN may receive, from the first RAN or from the core network, paging information for the UE comprising beamforming assistance information for the UE. The second RAN may then transmit a paging message to the UE based on the beamforming assistance information.

    SUPPORTING MULTIPLE BEAMS IN WIRELESS TRANSMISSIONS

    公开(公告)号:US20190335477A1

    公开(公告)日:2019-10-31

    申请号:US16394959

    申请日:2019-04-25

    Abstract: Methods, systems, and devices for wireless communications are described that provide for multiple different receive beams at a user equipment (UE) that may be spatially associated with a single transmission beam from a base station. A UE may measure, using multiple different receive beams, multiple instances of a same reference signal transmitted by the base station using a same transmission beam. The UE may provide measurement reports associated with each of the measurements to the base station. A particular receive beam to be used for a downlink transmission may be selected from the multiple receive beams and may be indicated to the UE.

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