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公开(公告)号：US11102814B2
公开(公告)日：2021-08-24
申请号：US15745424
申请日：2015-12-24
Applicant: Apple Inc.
Inventor： Abhijeet Bhorkar , Hwan-Joon Kwon , Christian Ibars Casas , Seunghee Han , Qiaoyang Ye
Abstract: Described are mechanisms for eNB support of DRS in LAA, in which DRS is transmitted at one or more DRS occasions within a DMTC window, subject to LBT. In some embodiments, an eNB may include hardware processing circuitry comprising an antenna port, a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to determine a DMTC window of a wireless communication channel. The second circuitry may be operable to initiate one or more CCA checks through an antenna coupled to the antenna port prior to a DRS occasion within a DMTC time window. The third circuitry may be operable to initiate a DRS transmission through the antenna within the DMTC window upon a CCA check of the set of one or more CCA checks sensing that the wireless communication channel is idle. Also described are mechanisms for proactive support of DRS in LAA.
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公开(公告)号：US10951360B2
公开(公告)日：2021-03-16
申请号：US15766466
申请日：2016-12-09
Applicant: Apple Inc.
Inventor： Jeongho Jeon , Abhijeet Bhorkar , Qiaoyang Ye , Fatemeh Hamidi-Sepehr , Hwan-Joon Kwon
Abstract: The present disclosure provides for a user equipment (UE) operating in an unlicensed spectrum in time division duplex (TDD). Operating a UE in an unlicensed spectrum in TDD can comprise generating a bitmap message. Generating a bitmap message can include accessing a bitmap comprising a plurality of positions based on a plurality of supported HARQ processes including the HARQ process, mapping a HARQ process identifier (ID) of the HARQ process to a position from the plurality of positions of the partitioned bitmap, and generating a bitmap message comprising the ACK/NACK message in the position of the bitmap corresponding to the HARQ process ID.
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公开(公告)号：US20210076360A1
公开(公告)日：2021-03-11
申请号：US16953769
申请日：2020-11-20
Applicant: Apple Inc.
Inventor： Alexei Davydov , Debdeep Chatterjee , Hong He , Gang Xiong , Hwan-Joon Kwon
Abstract: An apparatus configured to be employed in a gNodeB associated with a new radio (NR) communication system that support resource sharing between NR physical downlink shared channel (PDSCH) and NR physical downlink control channel (PDCCH) is disclosed. The apparatus comprises a processing circuit configured to generate a PDSCH dynamic rate matching resource set configuration signal comprising information on one or more overlap resource sets, wherein each the one or more overlap resource sets comprises time-frequency resources on which any overlapping PDSCH may or may not be mapped, based on an indication provided within a PDSCH rate matching indicator signal. The apparatus further comprises a radio frequency (RF) interface, configured to provide the generated PDSCH dynamic rate matching resource set configuration signal, to an RF circuitry, in order to subsequently provide the PDSCH dynamic rate matching resource set configuration signal to a user equipment (UE), in order to enable the UE to identify the one or more overlap resource sets.
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14.发明授权公开(公告)号：US10917938B2
公开(公告)日：2021-02-09
申请号：US16322068
申请日：2017-08-30
Applicant: Apple Inc.
Inventor： Hwan-Joon Kwon , Gang Xiong , Hong He
Abstract: Embodiments of a User Equipment (UE), Evolved Node-B (eNB) and methods for communication are generally described herein. The UE may receive downlink control information (DCI) that schedules a transport block (TB) that includes multiple code blocks. The UE may determine a transport block size (TBS) based on the DCI. The UE may attempt to decode the code blocks. The UE may, if the TBS is greater than a predetermined threshold: bundle the code blocks into code block groups for hybrid automatic repeat request (HARQ) acknowledgement; and transmit a HARQ bit per code block group. The UE may, if the TBS is less than or equal to the threshold, transmit a HARQ bit that indicates whether a decode failure has occurred for at least one of the code blocks of the TB.
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公开(公告)号：US10827525B2
公开(公告)日：2020-11-03
申请号：US15742388
申请日：2015-12-21
Applicant: APPLE INC.
Inventor： Abhijeet Bhorkar , Hwan-Joon Kwon
Abstract: Licensed assisted access (LAA) uplink (UL) transmissions can be performed using UL scheduling, enhanced node B (eNB) listen before talk (LBT), and user equipment (UE) LBT. A scheduling of a UE for UL transmission can include different procedures for a UE to perform LBT before UL transmission. These procedures can be classified as: i) a scheduled UE performing no LBT for UL transmission, ii) a scheduled UE performing fast LBT (as compared to the eNB) with a more aggressive choice of parameters than the eNB and iii) a scheduled UE performing LBT using parameters as used by the eNB for LBT. In some embodiments, the UL grant transmission by the eNB occurs in the unlicensed band after a successful LBT procedure at the eNB.
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Patent Agency Ranking
16.发明公开公开(公告)号：US20240163886A1
公开(公告)日：2024-05-16
申请号：US18404410
申请日：2024-01-04
Applicant: Apple Inc.
Inventor： Hong He , Debdeep Chatterjee , Gang Xiong , Hwan-Joon Kwon , Sergey Sosnin , Yongjun Kwak
IPC: H04W72/23 , H04L1/1812 , H04L1/1867 , H04W72/044 , H04W72/12
CPC classification number: H04W72/23 , H04L1/1812 , H04L1/1887 , H04L1/1896 , H04W72/044 , H04W72/12 , H04L1/08
Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot, and on a component carrier (CC) of a plurality of CCs. The PDCCH may include a total downlink assignment index (DAI) and a counter DAI for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of the PDSCH. The total DAI may indicate a total number of pairs of CCs and slots for the HARQ-ACK feedback. The UE may encode the HARQ-ACK feedback to include a bit that indicates whether the PDSCH is successfully decoded. A size of the HARQ-ACK feedback may be based on the total DAI, and a position of the bit may be based on the counter DAI.
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公开(公告)号：US11937302B2
公开(公告)日：2024-03-19
申请号：US17887223
申请日：2022-08-12
Applicant: Apple Inc.
Inventor： Jeongho Jeon , Abhijeet Bhorkar , Seunghee Han , Hwan-Joon Kwon
IPC: H04W74/08 , H04W74/00 , H04L1/1812
CPC classification number: H04W74/0816 , H04W74/006 , H04L1/1812 , H04W74/0808
Abstract: Devices, methods, user equipment (UE), evolved node B (eNB), and storage media are described suitable for coexistence operations for uplink communications on multiple unlicensed carriers. Various embodiments are implemented in LTE systems with license-assisted access (LAA) associated communications. In one embodiment, a UE processes one or more uplink grants from an eNB scheduling transmissions on multiple unlicensed carriers at a first time, and indicating a first channel access procedure. The UE then selects a first unlicensed carrier and performs the first channel access procedure, and performs a second channel access procedure on a second unlicensed carrier of the multiple unlicensed carriers.
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18.发明公开公开(公告)号：US20230354079A1
公开(公告)日：2023-11-02
申请号：US18340957
申请日：2023-06-26
Applicant: Apple Inc.
Inventor： Abhijeet Bhorkar , Hwan-Joon Kwon , Jeongho Jeon , Qiaoyang Ye
IPC: H04W24/10 , H04L5/00 , H04B7/0456 , H04B7/06 , H04L1/00
CPC classification number: H04W24/10 , H04L5/001 , H04L5/0048 , H04L5/0057 , H04B7/0456 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04L1/0004 , H04L5/0091 , H04L27/0006
Abstract: Techniques for channel state information (CSI) reporting are discussed. One example apparatus at a user equipment can derive, for one or more subframes of a license assisted access (LAA) secondary cell (SCell), one or more channel measurements based on reference signals (e.g., cell-specific reference signals (CRS) or CSI reference signals (CSI-RS)), in those subframes; generate CSI that comprises a channel quality indicator (CQI) based on an average of the one or more channel measurements from multiple subframes comprising a first subframe and a later second subframe, wherein each orthogonal frequency division multiplexing (OFDM) symbol of a second slot of the first subframe is occupied, wherein each of a first three OFDM symbols of the second subframe are occupied, and wherein each OFDM symbol between the first subframe and the second subframe is occupied; and generate a CSI report that indicates the set of CSI parameters.
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19.发明授权公开(公告)号：US11751088B2
公开(公告)日：2023-09-05
申请号：US17733057
申请日：2022-04-29
Applicant: Apple Inc.
Inventor： Abhijeet Bhorkar , Hwan-Joon Kwon , Jeongho Jeon , Qiaoyang Ye
CPC classification number: H04W24/10 , H04B7/0456 , H04B7/063 , H04B7/0626 , H04B7/0632 , H04L1/0004 , H04L5/001 , H04L5/0048 , H04L5/0057 , H04L5/0091 , H04L27/0006
Abstract: Techniques for channel state information (CSI) reporting are discussed. One example apparatus at a user equipment can derive, for one or more subframes of a license assisted access (LAA) secondary cell (SCell), one or more channel measurements based on reference signals (e.g., cell-specific reference signals (CRS) or CSI reference signals (CSI-RS)), in those subframes; generate CSI that comprises a channel quality indicator (CQI) based on an average of the one or more channel measurements from multiple subframes comprising a first subframe and a later second subframe, wherein each orthogonal frequency division multiplexing (OFDM) symbol of a second slot of the first subframe is occupied, wherein each of a first three OFDM symbols of the second subframe are occupied, and wherein each OFDM symbol between the first subframe and the second subframe is occupied; and generate a CSI report that indicates the set of CSI parameters.
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公开(公告)号：US11432278B2
公开(公告)日：2022-08-30
申请号：US16953769
申请日：2020-11-20
Applicant: Apple Inc.
Inventor： Alexei Davydov , Debdeep Chatterjee , Hong He , Gang Xiong , Hwan-Joon Kwon
Abstract: An apparatus configured to be employed in a gNodeB associated with a new radio (NR) communication system that support resource sharing between NR physical downlink shared channel (PDSCH) and NR physical downlink control channel (PDCCH) is disclosed. The apparatus comprises a processing circuit configured to generate a PDSCH dynamic rate matching resource set configuration signal comprising information on one or more overlap resource sets, wherein each the one or more overlap resource sets comprises time-frequency resources on which any overlapping PDSCH may or may not be mapped, based on an indication provided within a PDSCH rate matching indicator signal. The apparatus further comprises a radio frequency (RF) interface, configured to provide the generated PDSCH dynamic rate matching resource set configuration signal, to an RF circuitry, in order to subsequently provide the PDSCH dynamic rate matching resource set configuration signal to a user equipment (UE), in order to enable the UE to identify the one or more overlap resource sets.
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