-
公开(公告)号：US20210219161A1
公开(公告)日：2021-07-15
申请号：US17129797
申请日：2020-12-21
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yeqing Hu , Yang Li , Tiexing Wang , Junmo Sung , Rui Wang , Jianzhong Zhang
Abstract: A method for operating a base station comprises receiving channel information from a plurality of UEs; determining, based on the channel information, one or more UEs on which to base a channel prediction; computing a first set of metrics and a second set of metrics corresponding to the plurality of UEs, wherein computing the first set of metrics has a lower complexity than computing the second set of metrics; performing a selection process on the plurality of UEs based on the first and second set of metrics associated with the plurality of UEs; selecting a first subset of UEs from the plurality of UEs based on a first set of metrics; selecting, from the first subset, a second subset of UEs based on a second set of metrics; and performing the channel prediction based on the second subset of UEs.
-
公开(公告)号：US20210218601A1
公开(公告)日：2021-07-15
申请号：US17143130
申请日：2021-01-06
Applicant: Samsung Electronics Co., Ltd.
Inventor： Rui Wang , Yang Li , Junmo Sung , Yeqing Hu , Jianzhong Zhang
Abstract: Methods and apparatuses in a wireless communication system. A method of operating a base station (BS) includes receiving information of uplink transmissions; storing the received information; performing, based on the received information, channel parameter tracking operations to generate channel parameters, wherein the channel parameter tracking operations are configured with different configuration parameters; and performing, based on the channel parameters, a channel coefficient prediction operation to generate channel state information (CSI).
-
Patent Agency Ranking
公开(公告)号：US12068799B2
公开(公告)日：2024-08-20
申请号：US17541160
申请日：2021-12-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Rui Wang , Yang Li , Yeqing Hu , Junmo Sung , Tiexing Wang , Jianzhong Zhang
IPC: H04B17/373 , H04B1/713 , H04B7/06 , H04L5/00
CPC classification number: H04B17/373 , H04B7/0626 , H04B7/0639 , H04B1/713 , H04L5/0048
Abstract: Methods and apparatuses for a channel estimation and prediction operation in a wireless communication systems. A method of a BS comprises: receiving an SRS; partitioning, based on a partition policy, a frequency band of the SRS into sub-bandwidths in a frequency domain; generating, based on previously stored CSI in memory and the partition policy, a set of chunks corresponding to respective sub-bandwidths; performing CHPD operations corresponding to the respective sub-bandwidths to generate channel parameters, wherein different CHPD operations are applied to the respective sub-bandwidths; combining the channel parameters predicted from the respective sub-bandwidths in the frequency domain; and performing, based on the combined channel parameters, a channel estimation and prediction operation.
-
公开(公告)号：US20210281334A1
公开(公告)日：2021-09-09
申请号：US17188934
申请日：2021-03-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yang Li , Junmo Sung , Rui Wang , Yeqing Hu
Abstract: A base station (UE) is configured to perform a computer-implemented method for antenna fault detection and correction. The computer-implemented method includes acquiring one or more sounding reference signals (SRSs) received from at least one gNB antenna; detecting an antenna failure based on the one or more SRSs; estimating a noise power based on the antenna failure and a history of received SRSs; detecting a missing SRS based on the noise power and the history of received SRSs; and handling the missing SRS. Handling the missing SRS is based on performing at least one of: replacing an SRS measurement with a predicted SRS value for the missing SRS when the predicted SRS is available; or avoiding use of the missing SRS in a sequential SRS prediction when the predicted SRS is unavailable.
-
15.发明申请公开(公告)号：US20210218612A1
公开(公告)日：2021-07-15
申请号：US17143957
申请日：2021-01-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Junmo Sung , Yang Li , Rui Wang , Yeqing Hu , Jin Yuan , Jianzhong Zhang
Abstract: 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.
-
公开(公告)号：US10797913B2
公开(公告)日：2020-10-06
申请号：US16252252
申请日：2019-01-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yeqing Hu , Rui Wang , Boon Loong Ng , Young-Han Nam , Jin Yuan , Gary Xu , Jianzhong Zhang
IPC: H04L25/02 , H04L5/14 , H04B7/10 , H04B7/0413 , H04B7/0456 , H04L5/00
Abstract: Reciprocity base frequency division duplex (FDD) multiple-input-multiple-output (MIMO) downlink (DL) channel Channel-State Information (CSI) acquisition is provided. A base station (BS) includes a transceiver configured to measure uplink (UL) sounding reference signals (SRSs) at a UL carrier frequency, using two polarization components of an antenna array of the BS, and a processor configured to determine a quantity of propagation paths between the BS and a user equipment (UE), for each of the determined propagation paths, extract propagation parameters from the UL SRS measurements, for each of the determined propagation paths, predict a downlink (DL) channel based on the extracted propagation parameters and a DL carrier frequency, and generate a precoding channel matrix for the UE by summing the predicted DL channels for each of the determined propagation paths and for each of the two polarization components of the antenna array of the BS.
-
公开(公告)号：US20190229953A1
公开(公告)日：2019-07-25
申请号：US16252252
申请日：2019-01-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yeqing Hu , Rui Wang , Boon Loong Ng , Young-Han Nam , Jin Yuan , Gary Xu , Jianzhong Zhang
IPC: H04L25/02 , H04B7/0413 , H04B7/10 , H04L5/14
Abstract: Reciprocity base frequency division duplex (FDD) multiple-input-multiple-output (MIMO) downlink (DL) channel Channel-State Information (CSI) acquisition is provided. A base station (BS) includes a transceiver configured to measure uplink (UL) sounding reference signals (SRSs) at a UL carrier frequency, using two polarization components of an antenna array of the BS, and a processor configured to determine a quantity of propagation paths between the BS and a user equipment (UE), for each of the determined propagation paths, extract propagation parameters from the UL SRS measurements, for each of the determined propagation paths, predict a downlink (DL) channel based on the extracted propagation parameters and a DL carrier frequency, and generate a precoding channel matrix for the UE by summing the predicted DL channels for each of the determined propagation paths and for each of the two polarization components of the antenna array of the BS.
-
-
-
-
-
-
Search Results
17
records
(took 0.019 seconds)
