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公开(公告)号：US11696224B2
公开(公告)日：2023-07-04
申请号：US17583929
申请日：2022-01-25
Applicant: Apple Inc.
Inventor： Salvatore Talarico , Carlos Aldana , Bishwarup Mondal , Jeongho Jeon , Dae Won Lee
CPC classification number: H04W48/16 , H04L5/0048 , H04W56/001 , H04W72/30
Abstract: Systems and methods of providing timing information for initial access in an unlicensed band are described. A UE monitors a new radio discovery signal (NRDS-U) window in an unlicensed band for a DRS transmission that is constrained to be transmitted within the NRDS-U window. The UE determines initial access information, including an offset that indicates when the DRS transmission occurs within the NRDS-U window, and engages in initial access dependent on the offset. The offset is from a radio frame or half radio frame boundary or the start of the NRDS-U window. The offset is indicated in three least/most significant bits an SSB index or from an sl-offset field in a MIB of the SSB. When the base station uses a DFS channel, the base station transmits a periodic signal to emulate a radar signal.
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公开(公告)号：US11664958B2
公开(公告)日：2023-05-30
申请号：US17531884
申请日：2021-11-22
Applicant: Apple Inc.
Inventor： Peng Lu , Qiaoyang Ye , Gang Xiong , Glenn J. Bradford , Joonyoung Cho , Jong-Kae Fwu , Bishwarup Mondal
CPC classification number: H04L5/0098 , H04J13/0062 , H04L5/001 , H04L5/0048 , H04L7/007
Abstract: Systems, methods, and baseband processors are provided to generate or process symbols in a synchronization subframe. In one example, a method includes selecting non-consecutive orthogonal frequency division multiplexing (OFDM) symbols in a synchronization subframe. A transmitter is instructed to transmit demodulation reference symbols (DM-RS) on identical first sets of subcarriers in respective OFDM symbols of the selected non-consecutive OFDM symbols for a Physical Broadcast Channel (PBCH) using a same transmit beam, wherein a gap between two subcarriers in a respective set of the identical first sets of subcarriers is three subcarriers. The transmitter is instructed to transmit the PBCH on identical second sets of subcarriers in respective OFDM symbols in the selected non-consecutive OFDM symbols.
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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：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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公开(公告)号：US20210359742A1
公开(公告)日：2021-11-18
申请号：US17287186
申请日：2019-10-30
Applicant: Apple Inc.
Inventor： Bishwarup Mondal , Yushu Zhang , Alexei Davydov , Gregory V. Morozov , Victor Sergeev
IPC: H04B7/06 , H04B7/0417 , H04W24/10 , H04W72/12 , H04W72/04
Abstract: Methods, systems, and circuitries for configuring, measuring, and reporting channel state information are described. In one embodiment, an apparatus for a user equipment device (UE) includes processors configured to determine first channel state information (CSI) reference signal (RS) resource associated with a serving cell for the UE and determine a second CSI-RS resource associated with a non-serving cell for the UE. A first reference signal received in the first CSI-RS resource and a second reference signal received in the second CSI-RS resource are measured. First report quantities characterizing a channel between the UE and the serving cell are calculated based on the measurement of the first reference signal and second report quantities characterizing a channel between the UE and the non-serving cell are calculated based on the measurement of the second reference signal. The first and second report quantities are reported to the serving cell.
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Patent Agency Ranking
公开(公告)号：US20240397548A1
公开(公告)日：2024-11-28
申请号：US18789394
申请日：2024-07-30
Applicant: Apple Inc.
Inventor： Yongjun Kwak , Lopamudra Kundu , Bishwarup Mondal , Dae Won Lee
IPC: H04W74/00 , H04W74/0808
Abstract: Devices and methods of providing channel occupancy time (COT) are described. After a gNB acquires an unlicensed channel for a COT, the gNB indicates the COT length to a UE using a PDCCH having a DCI formed in accordance with DCI format 2_0. The slot format of the last slot of the COT is indicated using a reserved slot format indicator that is reserved to indicate the end of the COT. The reserved slot format indicator indicates a last slot format of available slot formats of DCI format 2_0. Dummy bits fill the DCI after the reserved slot format indicator. Alternatively, to indicate the COT length, a COT field dedicated to providing the COT is used in the DCI or the CRC is masked using a slot format indication Radio Network Temporary Identifier.
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公开(公告)号：US12149463B2
公开(公告)日：2024-11-19
申请号：US17279948
申请日：2019-09-27
Applicant: Apple Inc.
Inventor： Lopamudra Kundu , Bishwarup Mondal , Gang Xiong , Yongjun Kwak , Daewon Lee
IPC: H04L5/00 , H04W74/0808
Abstract: The present invention discloses one or more computer-readable media comprising instructions to: determine SRS resource allocation information to configure uplink resources for an SRS, the uplink resources to include a plurality of bandwidth ranges within a sounding bandwidth; perform a LET procedure in individual bandwidth ranges of the plurality of bandwidth ranges to detect at least one bandwidth range available for the SRS; and generate the SRS for transmission within the at least one bandwidth range.
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公开(公告)号：US12114321B2
公开(公告)日：2024-10-08
申请号：US17439143
申请日：2020-03-27
Applicant: Apple Inc.
Inventor： Avik Sengupta , Bishwarup Mondal , Toufiqul Islam , Hong He
CPC classification number: H04W72/23 , H04L5/0048
Abstract: Systems, devices, and techniques for preemption indication in wireless communication systems are described. A described technique includes receiving, by a User Equipment (UE) via a physical downlink control channel (PDCCH), a downlink control information (DCI) message in a Control Resource Set (CORESET) configured with a transmission configuration indicator (TCI) state, the TCI state being associated with a transmission reception point (TRP), the DCI message comprising a downlink preemption indication for the TCI state; and applying preemption to a reference signal or a channel associated with the TCI state responsive to the downlink preemption indication.
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公开(公告)号：US12069719B2
公开(公告)日：2024-08-20
申请号：US17290281
申请日：2019-11-01
Applicant: Apple Inc.
Inventor： Yongjun Kwak , Lopamudra Kundu , Bishwarup Mondal , Dae Won Lee
IPC: H04W74/00 , H04W74/0808
CPC classification number: H04W74/006 , H04W74/0808
Abstract: Devices and methods of providing channel occupancy time (COT) are described. After a gNB acquires an unlicensed channel for a COT, the gNB indicates the COT length to a UE using a PDCCH having a DCI formed in accordance with DCI format 2_0. The slot format of the last slot of the COT is indicated using a reserved slot format indicator that is reserved to indicate the end of the COT. The reserved slot format indicator indicates a last slot format of available slot formats of DCI format 2_0. Dummy bits fill the DCI after the reserved slot format indicator. Alternatively, to indicate the COT length, a COT field dedicated to providing the COT is used in the DCI or the CRC is masked using a slot format indication Radio Network Temporary Identifier.
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公开(公告)号：US12021588B2
公开(公告)日：2024-06-25
申请号：US17287186
申请日：2019-10-30
Applicant: Apple Inc.
Inventor： Bishwarup Mondal , Yushu Zhang , Alexei Davydov , Gregory V. Morozov , Victor Sergeev
IPC: H04B7/06 , H04B7/0417 , H04W24/10 , H04W72/0446 , H04W72/0453 , H04W72/1263
CPC classification number: H04B7/0626 , H04B7/0417 , H04B7/0632 , H04B7/0639 , H04W24/10 , H04W72/0446 , H04W72/0453 , H04W72/1263
Abstract: Methods, systems, and circuitries for configuring, measuring, and reporting channel state information are described. In one embodiment, an apparatus for a user equipment device (UE) includes processors configured to determine first channel state information (CSI) reference signal (RS) resource associated with a serving cell for the UE and determine a second CSI-RS resource associated with a non-serving cell for the UE. A first reference signal received in the first CSI-RS resource and a second reference signal received in the second CSI-RS resource are measured. First report quantities characterizing a channel between the UE and the serving cell are calculated based on the measurement of the first reference signal and second report quantities characterizing a channel between the UE and the non-serving cell are calculated based on the measurement of the second reference signal. The first and second report quantities are reported to the serving cell.
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