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公开(公告)号：US20230047057A1
公开(公告)日：2023-02-16
申请号：US17814186
申请日：2022-07-21
IPC分类号： H04W24/02 , H04L41/5009 , H04L41/0823
摘要： A method includes partitioning a set of configuration management (CM) data for one or more cellular network devices into multiple distinct time intervals, each time interval associated with a distinct set of CM settings at the one or more cellular network devices, the CM data comprising multiple CM parameters. The method also includes determining a regression model based on the set of CM data. The method also includes applying the regression model to compute a distinct set of scores and compare the set of scores to estimate whether a performance of the one or more cellular network devices has changed during a second time interval relative to a first time interval.
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12.发明授权公开(公告)号：US11552837B2
公开(公告)日：2023-01-10
申请号：US17143957
申请日：2021-01-07
发明人： Junmo Sung , Yang Li , Rui Wang , Yeqing Hu , Jin Yuan , Jianzhong Zhang
摘要： Methods and apparatuses in a wireless communication system. A method of operating a base station (BS) includes receiving a set of uplink signals; estimating, based on a subset of the set of uplink signals, uplink channels; estimating a timing offset (TO) and a frequency offset (FO) for a subset of the estimated uplink channels; compensating, based on the estimated TO and FO, the subset of the estimated uplink channels to generate TO and FO compensated uplink channel estimates; and generating channel prediction information based on the compensated subset of the estimated uplink channels.
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公开(公告)号：US20220407745A1
公开(公告)日：2022-12-22
申请号：US17652083
申请日：2022-02-22
发明人： Caleb K. Lo , Jeongho Jeon , Joonyoung Cho , Gilwon Lee , Jianzhong Zhang
摘要： Capability of a user equipment to support machine learning adaptation by a base station of a reference signal pattern is signaled between the base station and the user equipment. Configuration information from the base station indicates one or more of enabling or disabling of machine learning adaptation of the reference signal pattern, a machine learning model used for machine learning adaptation of the reference signal pattern, updated model parameters for the machine learning model, or whether model parameters received from the user equipment will be used for machine learning adaptation of the reference signal pattern. Model training may be performed or model parameters received, and reference signals are received from the base station. Information on a reference signal pattern may be transmitted by the user equipment to the serving base station. Assistance information may be transmitted by the user equipment to the base station, which configures a reference signal pattern.
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公开(公告)号：US20220095267A1
公开(公告)日：2022-03-24
申请号：US17460022
申请日：2021-08-27
发明人： Rubayet Shafin , Vishnu Vardhan Ratnam , Hao Chen , Yan Xin , Jianzhong Zhang
摘要： A method for performing line-of-sight (LoS)/non-line-of-sight (NLoS) filtering includes collecting, from at least one user equipment (UE) operating within a coverage area of a base station, a plurality of measurement reports from the at least one UE, wherein each measurement report of the plurality of measurement reports comprises a measured value of a signal parameter and location information of the at least one UE. The method further includes training a LoS/NLoS classification model on the plurality of measurement reports, obtaining a new measurement report from a UE operating at a first location within the coverage area of the base station and passing the new measurement report from the UE to the trained LoS/NLoS classification model to obtain a LoS/NLoS classification of the first location.
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公开(公告)号：US20220030570A1
公开(公告)日：2022-01-27
申请号：US17107567
申请日：2020-11-30
发明人： Gary Xu , Khurram Muhammad , Jin Yuan , Jianzhong Zhang
IPC分类号： H04W72/04 , H04B7/08 , H04B7/0452 , H04L5/00
摘要： A radio frequency (RF) unit and method of operation of the RF unit are disclosed herein. The RF unit comprises an antenna array, and the antenna array comprises a plurality of antenna elements. A first set of the plurality of antenna elements is configured to operate in a first mode and a second set of the plurality of antenna elements is configured to operate in a second mode. In the first mode, the first set of the plurality of antenna elements is configured to transmit and receive. In the second mode, the second set of the plurality of antenna elements is configured to only receive.
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16.发明申请公开(公告)号：US20210376469A1
公开(公告)日：2021-12-02
申请号：US17444986
申请日：2021-08-12
摘要： An antenna and a base station including the antenna. The antenna includes a sub-array that includes first and second unit cells and a feed network. The first and second unit cells comprise first and second patches, respectively, having quadrilateral shapes. The feed network comprises a first transmission line terminating below first corners of the first and second patches, respectively; a second transmission line terminating below third corners of the first and second patches, respectively; a third transmission line terminating below a second corner of the first patch and a fourth corner of the second patch; and a fourth transmission line terminating below a fourth corner of the first patch and a second corner of the second patch. The first corners are opposite the third corners on the respective first and second patches and the second corners are opposite the fourth corners on the respective first and second patches.
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17.发明申请公开(公告)号：US20210368487A1
公开(公告)日：2021-11-25
申请号：US17444655
申请日：2021-08-06
发明人： Young-Han Nam , Thomas David Novlan , Boon Loong Ng , Sudhir Ramakrishna , Li Guo , Jianzhong Zhang
IPC分类号： H04W72/04 , H04L5/00 , H04B7/0452 , H04B7/06 , H04W4/70
摘要： A user equipment (UE) in a wireless communication system. The UE comprises at least one processor configured to determine a first subcarrier spacing and a transceiver configured to transmit, to a base station (BS), random access signals generated with the first subcarrier spacing and receive a downlink control signaling comprising a physical (PHY) resource configuration that includes a second subcarrier spacing. The UE further comprises at least one processor configured to set the PHY resource configuration for at least one of uplink transmission or downlink reception.
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18.发明授权公开(公告)号：US10750434B2
公开(公告)日：2020-08-18
申请号：US16656480
申请日：2019-10-17
发明人： Boon Loong Ng , Krishna Sayana , Young-Han Nam , Jianzhong Zhang
IPC分类号： H04W48/12 , H04W64/00 , H04L25/02 , H04L5/00 , H04L27/26 , H04W16/14 , H04W48/16 , H04W56/00
摘要： Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.
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公开(公告)号：US20200099434A1
公开(公告)日：2020-03-26
申请号：US16583142
申请日：2019-09-25
发明人： Rui Wang , Junmo Sung , Jianzhong Zhang , Young-Han Nam , Shouvik Ganguly
IPC分类号： H04B7/06 , H04B7/0452
摘要： A method of a base station (BS) for channel state information (CSI) estimation in a wireless communication system is provided. The method of BS comprises: receiving, from a user equipment (UE), a sounding reference signal (SRS) for the CSI estimation; determining whether the received SRS is measurable for the CSI estimation; initializing a set of uplink parameters based on a result of the determination; updating the set of uplink parameters based on SRS history stored in a buffer; and performing, using a channel prediction model and channel reciprocity, the downlink CSI estimation based on the updated parameters.
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20.发明申请公开(公告)号：US20200053633A1
公开(公告)日：2020-02-13
申请号：US16656480
申请日：2019-10-17
发明人： Boon Loong Ng , Krishna Sayana , Young-Han Nam , Jianzhong Zhang
摘要： Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.
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