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    Uplink-based user equipment tracking for connected inactive state
    4.
    发明授权
    Uplink-based user equipment tracking for connected inactive state 有权

    公开(公告)号：US10652851B2

    公开(公告)日：2020-05-12

    申请号：US15789650

    申请日：2017-10-20

    申请人： Usa Vilaipornsawai ,  Mohammadhadi Baligh ,  Keyvan Zarifi ,  Yicheng Lin

    发明人： Usa Vilaipornsawai ,  Mohammadhadi Baligh ,  Keyvan Zarifi ,  Yicheng Lin

    IPC分类号： H04W64/00 ,  H04W52/02 ,  H04W76/27

    摘要： Methods and devices for uplink-based User Equipment (UE) tracking for UEs operating in a connected inactive operating state are provided. A transmit-receive point (TRP) transmits parameters to a UE that allow the UE to uniquely determine a UE-specific tracking sequence and assigned time-frequency (TF) resource that are independent of a TRP identifier associated with the TRP. The UE determines the UE-specific tracking sequence and assigned TF resource based at least in part on the parameters received from the TRP. While in the connected inactive operating state, the UE transmits a tracking signal that includes the UE-specific tracking sequence in accordance with the assigned TF resource. The TRP receives the tracking signal from the UE, detects the UE in accordance with the UE-specific tracking sequence to produce a UE detection status, and transmits a tracking response to the UE in accordance with the UE detection status.

    System and method for sounding reference signal transmission
    5.
    发明授权
    System and method for sounding reference signal transmission 有权

    公开(公告)号：US10820353B2

    公开(公告)日：2020-10-27

    申请号：US16100125

    申请日：2018-08-09

    申请人： Yicheng Lin ,  Keyvan Zarifi ,  Mohammadhadi Baligh

    发明人： Yicheng Lin ,  Keyvan Zarifi ,  Mohammadhadi Baligh

    IPC分类号： H04W40/00 ,  H04W74/08 ,  H04J13/14 ,  H04L5/00 ,  H04J13/00

    摘要： Systems and methods are provided for transmit signalling to configure a UE with a UE specific root to use in generating a Zhadoff Chu (ZC) sequence for reference signal transmission. With conventional LTE, a cell specific root is used within each cell. There is a need for a more flexible association between roots and UEs that, for example, allows for multiple roots to be associated with a cell. The provided approach may help with maintaining re-use distance as networks become denser. The method provided in this embodiment improves the capabilities of automatic driving and ADAS of electric vehicles. The method can be applied to vehicle networking, such as V2X, LTE-V, V2X, etc.

    Antenna beam management for multi-connection communications
    6.
    发明授权
    Antenna beam management for multi-connection communications 有权

    公开(公告)号：US11140562B2

    公开(公告)日：2021-10-05

    申请号：US15403638

    申请日：2017-01-11

    申请人： Yicheng Lin ,  Usa Vilaipornsawai ,  Mohammadhadi Baligh

    发明人： Yicheng Lin ,  Usa Vilaipornsawai ,  Mohammadhadi Baligh

    IPC分类号： H04B7/06 ,  H04W16/28 ,  H04B7/08 ,  H04B7/005

    摘要： Antenna beam sweeping according to the present disclosure involves different communication devices that are within an interference range of each other transmitting beam sweeping signals using different communication resources. This allows a receiver to distinguish between beam sweeping signals that are received from different transmitters, and may facilitate antenna beam alignment in multi-connection scenarios. Beam indices could be used to identify antenna beams for antenna beam management, in control signaling between base stations and User Equipment (UE), for example. Beam tracking and other aspects of antenna beam management are also disclosed.

    Location-based beam prediction using machine learning
    10.
    发明授权
    Location-based beam prediction using machine learning 有权

    公开(公告)号：US11096176B2

    公开(公告)日：2021-08-17

    申请号：US16422383

    申请日：2019-05-24

    申请人： Yicheng Lin ,  Mohammadhadi Baligh ,  Hamidreza Farmanbar ,  Aman Jassal

    发明人： Yicheng Lin ,  Mohammadhadi Baligh ,  Hamidreza Farmanbar ,  Aman Jassal

    IPC分类号： H04W4/00 ,  H04W72/04 ,  H04L12/24 ,  G06N20/00 ,  G06K9/62

    摘要： Network equipment receives, from User Equipment (UE), information indicative of each of multiple UE locations in a wireless communication network. For each location, a respective antenna beam direction for communications between the network equipment and a UE at each location is determined. A Machine Learning (ML) module is trained using each location as an ML module input and the respective antenna beam direction for each location as an ML module output. The trained ML module is then used to provide beam predictions based on UE location. Based on the current location of a UE, one or more antenna beam directions for communications between the network equipment and the UE at the current location are obtained from the ML module. The UE location is input to the ML module, and the antenna beam direction(s) are then obtained from the ML module output(s).