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公开(公告)号：US12238025B2
公开(公告)日：2025-02-25
申请号：US17419426
申请日：2020-01-07
Applicant: Apple Inc.
Inventor： Yushu Zhang , Bishwarup Mondal , Alexei Davydov , Guotong Wang , Avik Sengupta
Abstract: The present disclosure provides systems and methods for mapping transmission configuration indication (TCI) states to demodulation reference signal (DMRS) ports groups in a wireless network. For instance, a TCI state to DMRS ports group mapping of a user equipment (UE) can be determined. Each DMRS port in a DMRS ports group shares a quasi-co-location (QCL) assumption. The TCI state to DMRS ports group mapping comprises multiple TCI state groups. The TCI state to DMRS ports group mapping corresponds each TCI state group to one or more DMRS ports groups. A TCI state group from the DMRS ports group mapping can be selected for the UE. Data indicative of the selected TCI state group and the corresponding one or more DMRS ports groups can be provided to the UE based at least in part on the TCI state group from the DMRS ports group mapping.
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公开(公告)号：US12047218B2
公开(公告)日：2024-07-23
申请号：US17435730
申请日：2020-03-27
Applicant: Apple Inc.
Inventor： Bishwarup Mondal , Debdeep Chatterjee , Yongjun Kwak , Dae Won Lee , Avik Sengupta
CPC classification number: H04L27/2675 , H04L1/0013 , H04W56/0015
Abstract: Systems, methods, and circuitries are provided for maximizing use of discovery reference (DRS) resources for remaining minimum system information (RMSI) allocation. An example method includes configuring Type 0 physical downlink control channel (PDCCH) CORESET monitoring to include monitoring in either a first slot or a first slot and a second slot; generating a synchronization signal block (SSB) encoding the configured PDCCH CORESET monitoring; and transmitting the SSB to a user equipment (UE) by way of a discovery reference signal (DRS).
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公开(公告)号：US20220191906A1
公开(公告)日：2022-06-16
申请号：US17441830
申请日：2020-05-01
Applicant: Apple Inc.
Inventor： Avik Sengupta , Bishwarup Mondal , Debdeep Chatterjee , Alexei Davydov
Abstract: Systems, devices, and techniques for adjusting a user equipment (UE) processing time parameter in a wireless communication system that include transmission and reception points (TRPs) are described. A described technique performed by UE includes receiving a first physical downlink shared channel (PDSCH) from a first TRP corresponding to a first scheduling physical downlink control channel (PDCCH) and a second PDSCH from a second TRP corresponding to a second scheduling PDCCH. The technique further includes transmitting a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message and a second HARQ-ACK message based on the first PDSCH and the second PDSCH in accordance with a first processing time parameter and a second processing time parameter, respectively. The first processing time parameter can be based on a PDSCH mapping type, a processing capability of the UE, and one or more timing characteristics of the first PDSCH and the second PDSCH.
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公开(公告)号：US20220190987A1
公开(公告)日：2022-06-16
申请号：US17689229
申请日：2022-03-08
Applicant: Apple Inc.
Inventor： Debdeep Chatterjee , Alexei Vladimirovich Davydov , Seung Hee Han , Jeongho Jeon , Sameer Pawar , Avik Sengupta , Guotong Wang , Yushu Zhang
Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical down-in link control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of e OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCH. The DM-RS can be detected within the slot, the DM-RS starting at a symbol 01 location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the
PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-RS.-
公开(公告)号：US20220077982A1
公开(公告)日：2022-03-10
申请号：US17419426
申请日：2020-01-07
Applicant: Apple Inc.
Inventor： Yushu Zhang , Bishwarup Mondal , Alexei Davydov , Guotong Wang , Avik Sengupta
Abstract: The present disclosure provides systems and methods for mapping transmission configuration indication (TCI) states to demodulation reference signal (DMRS) ports groups in a wireless network. For instance, a TCI state to DMRS ports group mapping of a user equipment (UE) can be determined. Each DMRS port in a DMRS ports group shares a quasi-co-location (QCL) assumption. The TCI state to DMRS ports group mapping comprises multiple TCI state groups. The TCI state to DMRS ports group mapping corresponds each TCI state group to one or more DMRS ports groups. A TCI state group from the DMRS ports group mapping can be selected for the UE. Data indicative of the selected TCI state group and the corresponding one or more DMRS ports groups can be provided to the UE based at least in part on the TCI state group from the DMRS ports group mapping.
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Patent Agency Ranking
公开(公告)号：US12035327B2
公开(公告)日：2024-07-09
申请号：US17441831
申请日：2020-05-01
Applicant: Apple Inc.
Inventor： Avik Sengupta , Debdeep Chatterjee , Fatemeh Hamidi-Sepehr
CPC classification number: H04W72/23 , H04L5/0051 , H04L5/0094
Abstract: Systems, devices, and techniques for antenna port configuration in wireless communication systems are described. A described technique performed by a user equipment (UE) includes receiving configuration information that determines a bit-width value for an antenna port indication field of a downlink control information (DCI) format; receiving a DCI message that is in accordance with the DCI format; and determining an antenna port configuration for one or more demodulation reference signals based on the DCI message, the configuration information, and the bit-width value.
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公开(公告)号：US20220338229A1
公开(公告)日：2022-10-20
申请号：US17441831
申请日：2020-05-01
Applicant: Apple Inc.
Inventor： Avik Sengupta , Debdeep Chatterjee , Fatemeh Hamidi-Sepehr
Abstract: Systems, devices, and techniques for antenna port configuration in wireless communication systems are described. A described technique performed by a user equipment (UE) includes receiving configuration information that determines a bit-width value for an antenna port indication field of a downlink control information (DCI) format; receiving a DCI message that is in accordance with the DCI format; and determining an antenna port configuration for one or more demodulation reference signals based on the DCI message, the configuration information, and the bit-width value.
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公开(公告)号：US20220167321A1
公开(公告)日：2022-05-26
申请号：US17440932
申请日：2020-03-19
Applicant: Apple Inc.
Inventor： Yushu Zhang , Alexei Davydov , Bishwarup Mondal , Guotong Wang , Avik Sengupta
IPC: H04W72/04
Abstract: Wireless communication systems can include multiple Transmission and Reception Points (TRPs). Systems, devices, and techniques for control signaling of Precoding Resource block Group (PRG) size configuration for multi-TRP operations are described. A described technique includes determining, by a User Equipment (UE), a PRG size based on a downlink control information (DCI) message that provides scheduling information for a physical ?downlink shared channel (PDSCH); receiving, by the UE, a group of PDSCH transmissions from multiple TRPs that are transmitted in accordance with the DCI message; and decoding, by the UE, one or more of the PDSCH transmissions based on the PRG size.
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公开(公告)号：US11290230B2
公开(公告)日：2022-03-29
申请号：US16625149
申请日：2018-06-20
Applicant: Apple Inc.
Inventor： Debdeep Chatterjee , Alexei Vladimirovich Davydov , Seunghee Han , Jeongho Jeon , Sameer Pawar , Avik Sengupta , Guotong Wang , Yushu Zhang
Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical downlink control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCH. The DM-RS can be detected within the slot, the DM-RS starting at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-RS.
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公开(公告)号：US12238029B2
公开(公告)日：2025-02-25
申请号：US18212635
申请日：2023-06-21
Applicant: Apple Inc.
Inventor： Debdeep Chatterjee , Alexei Vladimirovich Davydov , Seung Hee Han , Jeongho Jeon , Sameer Pawar , Avik Sengupta , Guotong Wang , Yushu Zhang
IPC: H04L5/00 , H04L1/1812
Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical downlink control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCII. The DM-RS can be detected within the slot, the DM-RS starting at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-RS.
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