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公开(公告)号：US11588599B2
公开(公告)日：2023-02-21
申请号：US17241586
申请日：2021-04-27
Applicant: Apple Inc.
Inventor： Jeongho Jeon , Seau Lim , Yongjun Kwak , Anthony Lee , Hwan-Joon Kwon , Joonyoung Cho , Huaning Niu
Abstract: A network device (e.g., a user equipment (UE), or a new radio NB (gNB)) can process or generate a configuration of a physical random access channel (PRACH) over physical resource blocks (PRBs) that are interlaced in an unlicensed band in an NR unlicensed (NR-U) communication. The PRBs in the PRACH can be based on an occupied channel bandwidth (OCB) of the unlicensed band in the NR-U communication. A random access channel transmission in the PRACH can then be generated by interlacing the PRBs defining the PRACH.
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公开(公告)号：US20220353002A1
公开(公告)日：2022-11-03
申请号：US17811378
申请日：2022-07-08
Applicant: APPLE INC.
Inventor： Dae Won Lee , Gregory Morozov , Ansab Ali , Seunghee Han , Yongjun Kwak
Abstract: Technology for a Next Generation NodeB (gNB) operable to encode a primary synchronization signal for transmission to a user equipment (UE) is disclosed. The gNB can identify a sequence d(n) for a primary synchronization signal. The sequence d(n) can be defined by: d(n)=1−2s(n), where s(n) is a maximum run length sequence (m-sequence) and s(n) is provided as s(n+7)=(s(n+4)+s(n))mod 2, where 0≤n≤127. The gNB can generate the primary synchronization signal based on the sequence d(n). The gNB can encode the primary synchronization signal for transmission to the UE.
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公开(公告)号：US11368980B2
公开(公告)日：2022-06-21
申请号：US16463971
申请日：2018-03-06
Applicant: APPLE INC.
Inventor： Yongjun Kwak , Seunghee Han , Gang Xiong , Kyeongin Jeong , Dae Won Lee
Abstract: Technology for an apparatus of a user equipment (UE), operable to perform a random-access procedure using a UE-specific control resource set (CORESET) is disclosed. The UE can decode a 5 message, received from the next generation node B (gNB), to perform a contention free random-access (RA) procedure. The UE can encode a random-access channel (RACH) preamble for transmission to the gNB using one or more UE-specific CORESET. The UE can decode a random-access response (RAR) received from the gNB in response to the RACH preamble transmission using the one or more UE10 specific CORESET.
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公开(公告)号：US20220174739A1
公开(公告)日：2022-06-02
申请号：US17441532
申请日：2020-05-01
Applicant: Apple Inc.
Inventor： Yongjun Kwak , Lopamudra Kundu , Salvatore Talarico , Yingyang Li
Abstract: Systems, devices, and techniques for listen-before-talk (LBT) operations in unlicensed spectrum are described. A described technique includes receiving, by a user equipment (UE), a downlink control information (DCI) message, the DCI message including available bandwidth information and a channel occupancy time (COT) duration, the available bandwidth information being associated with one or more LBT bandwidths of a bandwidth part (BWP) in unlicensed spectrum; receiving, by the UE, one or more physical downlink shared channel (PDSCH) transmissions in the BWP, during the COT duration; and processing the one or more PDSCH transmissions based on the available bandwidth information.
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Patent Agency Ranking
公开(公告)号：US20220104048A1
公开(公告)日：2022-03-31
申请号：US17643538
申请日：2021-12-09
Applicant: APPLE INC.
Inventor： Yongjun Kwak , Gang Xiong , Hong He , Yujian Zhang , Debdeep Chatterjee , Honglei Miao , Bharat Shrestha
Abstract: Technology for a user equipment (UE), operable for monitoring a physical downlink control channel (PDCCH) is disclosed. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein the predetermined monitoring occasion has a periodicity of P slots or P symbols with an offset Os. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein Os has an offset with respect to a first slot in subframe number zero (SFN #0). The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein P is a positive integer greater than zero.
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公开(公告)号：US20220060279A1
公开(公告)日：2022-02-24
申请号：US17462426
申请日：2021-08-31
Applicant: Apple Inc.
Inventor： Debdeep Chatterjee , Hong He , Gang Xiong , Ajit Nimbalker , Dmitry Dikarev , Yongjun Kwak
Abstract: Provided herein are method and apparatus for channel coding in the fifth Generation (5G) New Radio (NR) system. An embodiment provides an apparatus for a Next Generation NodeB (gNB), including circuitry, which is configured to: generate Downlink Control Information (DCI) payload for a NR-Physical Downlink Control Channel (NR-PDCCH); attach Cyclic Redundancy Check (CRC) to the DCI payload; mask the CRC with an Radio Network Temporary Identifier (RNTI) using a bitwise modulus 2 addition operation, wherein the number of bits for the RNTI is different from the number of bits for the CRC; and perform polar encoding for the DCI payload with the masked CRC.
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公开(公告)号：US11121828B2
公开(公告)日：2021-09-14
申请号：US16478224
申请日：2018-05-03
Applicant: Apple Inc.
Inventor： Gang Xiong , Joonyoung Cho , Lopamudra Kundu , Yongjun Kwak
Abstract: New radio (NR) Uplink (UL) transmissions in an NR physical UL channel can be configured for a user equipment (UE) to communicate with a base station (e.g., gNB). The structures and mechanisms for configured these communications different from long term evolution (LTE) in NR specifications. A UE can generate a UL transmission with symbols on the NR physical channel including demodulation-reference signal (DM-RS) symbols and uplink control information (UCI) symbols. The UL transmissions comprise a DM-RS symbol located at each first symbol with variable lengths. The UE generates the UL transmission as an NR physical UL channel with about a 50% DM-RS overhead with a same or more DM-RS symbols than UCI symbols in a sequential pattern (e.g., an alternating pattern). The UE further maps HARQ-ACK feedback on a PUSCH based a frequency first operation that initiates following the DM-RS symbol located at the first symbol.
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公开(公告)号：US20210194626A1
公开(公告)日：2021-06-24
申请号：US17197596
申请日：2021-03-10
Applicant: Apple Inc.
Inventor： Debdeep Chatterjee , Hong He , Gang Xiong , Ajit Nimbalker , Dmitry Dikarev , Yongjun Kwak
Abstract: Provided herein are method and apparatus for channel coding in the fifth Generation (5G) New Radio (NR) system. An embodiment provides an apparatus for a Next Generation NodeB (gNB), including circuitry, which is configured to: generate Downlink Control Information (DCI) payload for a NR-Physical Downlink Control Channel (NR-PDCCH); attach Cyclic Redundancy Check (CRC) to the DCI payload; mask the CRC with an Radio Network Temporary Identifier (RNTI) using a bitwise modulus 2 addition operation, wherein the number of bits for the RNTI is different from the number of bits for the CRC; and perform polar encoding for the DCI payload with the masked CRC.
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公开(公告)号：US20210014891A1
公开(公告)日：2021-01-14
申请号：US16924123
申请日：2020-07-08
Applicant: Apple Inc.
Inventor： Salvatore Talarico , Yongjun Kwak , Yingyang Li , Carlos H. Aldana
Abstract: Apparatuses, systems, and methods are disclosed for frame based equipment (FBE) framework for new radio (NR) systems operating on the unlicensed spectrum. A processor for a base station performs a first clear channel assessment (CCA) using Category-1 (CAT-1) or CAT-2 listen-before-talk (LBT) on an unlicensed spectrum. The processor transmits first downlink (DL) data to one or more user equipments (UEs) within a fixed frame period (FFP) in accordance with a frame based equipment (FBE) framework for new radio (NR) on the unlicensed spectrum. The base station operates as an initiating device and the one or more UEs operate as responding devices. The processor performs a second CCA responsive to a gap of X orthogonal frequency-division multiplexing (OFDM) symbols between a DL burst and an uplink (UL) burst being greater than a threshold gap. The processor transmits second DL data within the FFP responsive to performing the second CCA.
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