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公开(公告)号：US20230081552A1
公开(公告)日：2023-03-16
申请号：US17886974
申请日：2022-08-12
Applicant: MEDIATEK INC.
Inventor： Kuan-Hung CHOU , Chin-Kuo JAO
Abstract: A method for codebook-based uplink transmission is described. A sounding reference signal (SRS) configuration can be received from a base station at a user equipment (UE). The UE has N antenna groups. N is an integer greater than two. The SRS configuration indicates N SRS resources for the N antenna groups, respectively. An SRS transmission can be performed using the N SRS resources from the N antenna groups, respectively. A downlink control information (DCI) can be received from the base station. The DCI indicates two SRIs associated with two of the N SRS resources. The DCI indicates two transmission precoder matrix indicators (TPMIs). A PUSCH can be transmitted using two antenna groups of the N antenna groups corresponding to the two SRIs indicated in the DCI and two precoders corresponding to the two TPMIs indicated in the DCI.
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Patent Agency Ranking
2.发明公开公开(公告)号：US20230291454A1
公开(公告)日：2023-09-14
申请号：US18169711
申请日：2023-02-15
Applicant: MEDIATEK INC.
Inventor： Kuan-Hung CHOU , Chin-Kuo JAO , Sandeep BHAT
CPC classification number: H04B7/0626 , H04B7/0639 , H04B7/10 , H04L5/0035 , H04L5/0051
Abstract: A method of channel state information (CSI) report can include receiving a CSI report configuration at a user equipment (UE) from a base station, the CSI report configuration being associated with a set of CSI reference signal (CSI-RS) resources corresponding to multiple transmission reception points (TRPs), performing a channel measurement based on the CSI-RSs resources corresponding to the multiple TRPs, determining a precoder matrix indicator (PMI) based on measurement results of the channel measurement, the PMI corresponding to a precoder matrix, denoted W, of a Type II CSI codebook, the precoder matrix having a spatial domain (SD) basis vector matrix, denoted W1, SD basis selection of the SD basis vector matrix being TRP-specific, and transmitting a CSI report to the base station, the CSI report including the PMI.
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公开(公告)号：US20230088818A1
公开(公告)日：2023-03-23
申请号：US17892372
申请日：2022-08-22
Applicant: MEDIATEK INC.
Inventor： Kuan-Hung CHOU , Chin-Kuo JAO
IPC: H04B7/06 , H04B7/0456 , H04L5/00
Abstract: A method of channel state information (CSI) report can include receiving a CSI report configuration at a user equipment (UE) from a base station. The CSI report configuration indicates CSI reference signal (CSI-RS) resources configured for transmitting CSI-RSs from multiple transmission and reception points (TRPs). An CSI-RS measurement process can be performed at the UE based on the CSI-RSs transmitted from the multiple TRPs using the CSI-RS resources indicated by the CSI report configuration. A CSI report can be transmitted from the UE to the base station based on the CSI report configuration. The CSI report includes information of one or more phase differences or one or more amplitude differences among the CSI-RSs transmitted from the multiple TRPs.
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4.发明公开公开(公告)号：US20230291452A1
公开(公告)日：2023-09-14
申请号：US18169613
申请日：2023-02-15
Applicant: MEDIATEK INC.
Inventor： Kuan-Hung CHOU , Chin-Kuo JAO , Sandeep BHAT
CPC classification number: H04B7/0626 , H04L5/0035 , H04L5/0051 , H04B7/0639 , H04B7/0632
Abstract: A method of channel state information (CSI) report can include receiving a CSI report configuration at a user equipment (UE) from a base station, the CSI report configuration being associated with a set of CSI reference signal (CSI-RS) resources corresponding to multiple transmission reception points (TRPs), performing a channel measurement based on the CSI-RSs resources corresponding to the multiple TRPs, determining a precoder matrix indicator (PMI) based on measurement results of the channel measurement, the PMI corresponding to a precoder matrix, denoted W, of a Type II CSI codebook, the precoder matrix having a spatial domain (SD) basis vector matrix, denoted W1, SD basis selection of the SD basis vector matrix being TRP-specific, and transmitting a CSI report to the base station, the CSI report including the PMI.
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5.发明公开公开(公告)号：US20230291453A1
公开(公告)日：2023-09-14
申请号：US18169672
申请日：2023-02-15
Applicant: MEDIATEK INC.
Inventor： Kuan-Hung CHOU , Chin-Kuo JAO , Sandeep BHAT
CPC classification number: H04B7/0626 , H04L5/0035 , H04L5/0051 , H04B7/0639 , H04B7/0623
Abstract: A method of channel state information (CSI) report can include receiving a CSI report configuration at a user equipment (UE) from a base station, the CSI report configuration being associated with a set of CSI reference signal (CSI-RS) resources corresponding to multiple transmission reception points (TRPs), performing a channel measurement based on the CSI-RSs resources corresponding to the multiple TRPs, determining a precoder matrix indicator (PMI) based on measurement results of the channel measurement, the PMI corresponding to a precoder matrix, denoted W, of a Type II CSI codebook, the precoder matrix having a spatial domain (SD) basis vector matrix, denoted W1, SD basis selection of the SD basis vector matrix being TRP-specific, and transmitting a CSI report to the base station, the CSI report including the PMI.
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6.发明申请公开(公告)号：US20180160119A1
公开(公告)日：2018-06-07
申请号：US15816859
申请日：2017-11-17
Applicant: MEDIATEK INC.
Inventor： Chin-fa SU , Li-Wei LU , Kuan-Hung CHOU , Chien-Chang WANG
IPC: H04N19/137 , H04N19/142 , H04N19/162 , H04N19/172 , H04N19/44 , H04N19/543 , H04N19/55
CPC classification number: H04N19/137 , H04N19/132 , H04N19/142 , H04N19/162 , H04N19/167 , H04N19/17 , H04N19/172 , H04N19/44 , H04N19/543 , H04N19/55 , H04N19/597
Abstract: Methods and apparatus of video decoding for a 360-degree video sequence are disclosed. According to one method, a bitstream comprising compressed data for a previous 360-degree frame and a current 360-degree frame in a 360-degree video sequence is received. A first view region in the previous 360-degree frame associated with a first field of view is determined for a user at a previous frame time. An extended region from the first view region in the current 360-degree frame is determined based on user's viewpoint information. The extended region in the current 360-degree frame is then decoded. A second view region in the current 360-degree frame associated with an actual field of view is rendered for the user at a current frame time.
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