METHODS AND DEVICES FOR UNMANNED AERIAL SYSTEM TRACKING

    公开(公告)号:US20220398933A1

    公开(公告)日:2022-12-15

    申请号:US17772914

    申请日:2020-10-07

    IPC分类号: G08G5/00 G05D1/10 H04L67/12

    摘要: A vehicle control function, UCF, and a method for the UCF that receives from a traffic management function, USS/UTM, a first positioning request message comprising a vehicle system, UAV, identity and coordinates of interest, determines with the USS/UTM a positioning configuration for the coordinates of interest, sends to a Location Server a second positioning request message comprising the UAV identity, UAV positioning configuration, receives positioning information for the UAV from the Location Server, and sends to the USS/UTM a positioning report message comprising the UAV identity and the positioning information.

    TRANSMISSION WITH RESTRICTIONS IN UNLICENSED SPECTRUM

    公开(公告)号:US20210144757A1

    公开(公告)日:2021-05-13

    申请号:US16623849

    申请日:2018-06-22

    IPC分类号: H04W74/08 H04W16/14 H04W74/00

    摘要: Systems, devices, and methods for operating in an unlicensed band are disclosed herein. In one example, a device may receive configuration information that includes a maximum channel occupancy time (MCOT) and a plurality of parameters including a plurality of transmission opportunity windows (TOWs). Based on the configuration information, the device may split a transmission into a plurality of bursts that may be grouped into sets of bursts based on how many bursts fit within a TOW. The number of bursts in a set of bursts may be less than or equal to the MCOT. The device may perform a clear channel assessment (CCA) to determine if the channel is busy and to determine a start time within the TOW for the bursts. The device may then transmit the set of bursts for that TOW, where each burst may have a burst indicator (BI).

    METHOD FOR MILLIMETER WAVE BEAM TRACKING
    5.
    发明申请

    公开(公告)号:US20170223552A1

    公开(公告)日:2017-08-03

    申请号:US15488146

    申请日:2017-04-14

    IPC分类号: H04W16/28 H04W64/00 H04W24/08

    摘要: A method and apparatus for improving and performing mmW beam tracking is disclosed. Localization methods to improve prediction of the position of a WTRU are described, which may allow a millimeter wave base station (mB) to appropriately select a modified beam and to perform more efficient handover. WTRUs may report directional signal strength measurements to mBs, which may then be used to generate a directional radio environment map (DREM) for use in identifying secondary links to use when a primary link fails. Additional localization techniques using internal/external information for prediction are described. Historical data use and the use of data obtained from mB-mB cooperation including feedback information and reference signaling information are also described. Methods for beam tracking for directional relays and initial beam training optimization are described as well. Finally, WTRU localization precision improvement, beamwidth adaptation, and assisted beam tracking and handover methods are also described.

    JOINT COMMUNICATION AND SENSING AIDED BEAM MANAGEMENT FOR NR

    公开(公告)号:US20220225121A1

    公开(公告)日:2022-07-14

    申请号:US17635209

    申请日:2020-08-14

    IPC分类号: H04W16/28 H04W24/08 H04L5/00

    摘要: Methods and apparatuses for receive (Rx) beam selection are described herein. A wireless transmit/receive unit (WTRU) may be configured to receive, from a base station (BS), configuration information for joint communication and sensing (JCS) reference signals. The configuration information may include resources for reference signal transmission and resources for measurement reporting. The WTRU may be further configured to receive, from the BS, an indication to activate a subset of the resources for JCS reference signal transmission. The WTRU may be further configured to transmit, a plurality of JCS reference signals using the activated subset of resources for reference signal transmission. The WTRU may be further configured to measure, via a plurality of Rx beams, a backscatter power associated with each of the transmitted plurality of JCS reference signals. The WTRU may be further configured to calculate beam blockage statistics based on the measured backscatter power.