SSB TRANSMISSION IN HOLOGRAPHIC-MIMO SYSTEM

    公开(公告)号:US20250096864A1

    公开(公告)日:2025-03-20

    申请号:US18566612

    申请日:2021-08-12

    Abstract: A base station may select at least one of one or more 2D beams for at least one first SSB of a plurality of SSBs or one or more 3D beams for at least one second SSB of the plurality of SSBs. A UE may identify a beam type of at least one of one or more 2D beams for at least one first SSB of a plurality of SSBs or one or more 3D beams for at least one second SSB of the plurality of SSBs. The base station may transmit, to the UE, at least one of the at least one first SSB via the one or more 2D beams or the at least one second SSB via the one or more 3D beams.

    ORBITAL ANGULAR MOMENTUM MULTIPLEXING USING DIFFERENT QUANTITIES OF TRANSMIT AND RECEIVE ANTENNA SUBARRAYS

    公开(公告)号:US20250047336A1

    公开(公告)日:2025-02-06

    申请号:US18717396

    申请日:2022-02-25

    Abstract: Methods, systems, and devices for wireless communication are described. Some wireless communications systems may support orbital angular momentum (OAM) communications between a transmitting device and a receiving device. The transmitting device may generate signals for transmission to the receiving device via a transmitter circle that includes a first quantity of antenna arrays. The transmitting device may transmit the signals using the transmitter circle based on multiple sets of OAM weights, where each signal may be associated with a respective set of OAM weights. The receiving device may receive the signals using a receiver circle that includes a second quantity of antenna arrays that is different than the first quantity. The receiving device may decode the signals based on multiple sets of OAM weights. The sets of OAM weights at the transmitting device and the receiving device may be based on the first quantity being different than the second quantity.

    ANGLE ERROR GROUP FOR DEVICE POSITIONING MEASUREMENT AND REPORTING

    公开(公告)号:US20250016722A1

    公开(公告)日:2025-01-09

    申请号:US18712218

    申请日:2022-10-28

    Abstract: Different antenna components of a device cause different biases in calculating a location of a user equipment (UE) based on reference signals from another device (which may be sounding reference signals from the UE or positioning reference signals from a base station). A device is configured to use different subsets of antenna components to calculate a positioning measurement. With each of the antenna components associated with a bias in calculating the positioning measurement, each subset of antenna components is associated with a bias in calculating the positioning measurement. The device is configured to generate and report an angle error group (AEG) report that is associated with the positioning measurements calculated (such as an AEG report including positioning measurements and identifiers indicating the antenna components used). The AEG report is used by a location server to identify the antenna components to be used for UE positioning operations.

    CELLULAR NETWORK-BASED POSITIONING FOR NON-TERRESTRIAL NETWORK

    公开(公告)号:US20240251374A1

    公开(公告)日:2024-07-25

    申请号:US18293324

    申请日:2021-09-29

    CPC classification number: H04W64/00 G01S5/10 G01S13/876

    Abstract: Aspects presented herein may enable a positioning entity (e.g., a UE, a base station, a TRP, or an LMF, etc.) to take changes in propagation delay into consideration when calculating RTT or measuring Rx-Tx timing difference for signals transmitted between a UE and a non-terrestrial device. In one aspect, a UE measures a plurality of PRSs transmitted from a non-terrestrial device. The UE calculates a propagation delay change between the UE and the non-terrestrial device based on a TDOA of the plurality of PRSs. The UE transmits, to an LMF or a location server, a UE Rx-Tx time difference associated with a UE positioning session and the propagation delay change.

    CONTROL CHANNEL DESIGN IN ORBITAL ANGULAR MOMENTUM (OAM) BASED COMMUNICATION SYSTEM

    公开(公告)号:US20240243884A1

    公开(公告)日:2024-07-18

    申请号:US18562182

    申请日:2021-07-17

    CPC classification number: H04L5/0053 H04L5/0007 H04W72/232

    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for techniques for signaling control information in wireless communication systems based on orbital angular momentum (OAM) modes. One aspect provides a method for wireless communication by a transmitter. The method generally includes transmitting to a receiver, with a first orbital angular momentum (OAM) mode, a first control channel on a first time-frequency resource and transmitting to the receiver, with a second OAM mode, at least one of a data channel or a second control channel on a second time-frequency resource that at least partially overlap with the first time-frequency resource in at least one of time or frequency.

    OPPORTUNISTIC SATELLITE COMMUNICATION WITH ALIGNMENT PREDICTION

    公开(公告)号:US20240097778A1

    公开(公告)日:2024-03-21

    申请号:US18466733

    申请日:2023-09-13

    CPC classification number: H04B7/18519 H04B7/18513

    Abstract: Disclosed are techniques for wireless communication. In an aspect, a wireless communication device detects a trigger to transmit a message via satellite connectivity, determines one or more alignment opportunities associated with one or more satellites, wherein each alignment opportunity of the one or more alignment opportunities is a time period during which a main lobe of an antenna of the wireless communication device is predicted to be aligned with a line-of-sight (LOS) direction to at least one satellite of the one or more satellites, transitions to a sleep state until at least one alignment opportunity of the one or more alignment opportunities, and transmits the message to the at least one satellite of the one or more satellites during the at least one alignment opportunity of the one or more alignment opportunities.

    CELLULAR RADIO FREQUENCY (RF) SENSING IN AUTOMOBILE NAVIGATION

    公开(公告)号:US20240061119A1

    公开(公告)日:2024-02-22

    申请号:US17820068

    申请日:2022-08-16

    CPC classification number: G01S17/86 G01S5/145 G01S5/02521 G01S13/931

    Abstract: An example method for obtaining data at a vehicle for automobile navigation based on cellular radio frequency (RF) sensing comprising obtaining, with a camera at the vehicle, a camera image of an environment surrounding the vehicle. The method further comprises determining a failure condition of the camera preventing object detection of the camera image, wherein the failure condition is caused by inclement weather, blockage on a lens of the camera, electrical failure of the camera, or a combination thereof. The method further comprises responsive to determining the failure condition of the camera, configuring a cellular communication interface of the vehicle to obtain cellular RF sensing data of the environment surrounding the vehicle. The method further comprises performing the automobile navigation support based at least in part on cellular RF sensing data of the environment surrounding the vehicle.

    ANTI-SPOOFING CONSIDERATIONS IN MAP-AIDING POSITIONING

    公开(公告)号:US20250085435A1

    公开(公告)日:2025-03-13

    申请号:US18465903

    申请日:2023-09-12

    Abstract: Aspects presented herein may enable a UE to verify the integrity of map data, thereby improving the accuracy and safety of map-aiding positioning and/or map-based positioning. In one aspect, a UE performs a map-aiding positioning based on a first set of map data. The UE verifies whether an integrity of the first set of map data meets an accuracy threshold. The UE discards the first set of map data if the verification of the integrity of the first set of map data does not meet the accuracy threshold. For example, the UE may compare the first set of map data with a second set of map data from a different source, and identify the integrity of the first set of map data does not meet the accuracy threshold if the comparison shows an indication of inconsistency above a consistency threshold.

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