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公开(公告)号:US20240007336A1
公开(公告)日:2024-01-04
申请号:US18469719
申请日:2023-09-19
Applicant: Apple Inc.
Inventor: Seunghee Han , Gang Xiong , Jong-Kae Fwu , Huaning Niu , Utsaw Kumar
CPC classification number: H04L27/26025 , H04L27/2613 , H04L27/2692 , H04J11/0076 , H04L5/0094 , H04L5/0048 , H04W72/23
Abstract: Devices and methods of using xSS are generally disclosed. A UE receives an xPSS with (Nrep) symbols each with a subcarrier spacing of K×a PSS subcarrier spacing and a duration of a PSS symbol/K. PSD subcarriers surround the xPSS and the ZC sequence is punctured to avoid transmission on a DC subcarrier. Guard subcarriers separate the xPSS and PSD when the ZC sequence is less than the occupied BW of the xPSS and at least one element in the ZC sequence is punctured for xPSS symbol generation otherwise. One or more xSSSs and xS-SCHs may follow the xPSS. The xSS may be omnidirectional, each having a same xPSS and different xSSS or xS-SCH or a different xPSS and same xSSS or xS-SCH or beamformed, each having different xPSSs and xSSSs or xS-SCHs or a same xPSS and different xSSS or xS-SCH.
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92.
公开(公告)号:US11848884B2
公开(公告)日:2023-12-19
申请号:US16725017
申请日:2019-12-23
Applicant: Apple Inc.
Inventor: Gang Xiong , Debdeep Chatterjee , Seunghee Han
IPC: H04L5/00 , H04B1/713 , H04L1/08 , H04L1/00 , H04L1/1607
CPC classification number: H04L5/0053 , H04B1/713 , H04L1/08 , H04L5/0012 , H04B2201/698 , H04L1/00 , H04L1/1671 , H04L5/0094
Abstract: This application relates to enhanced coverage communication using a physical uplink control channel (PUCCH). PUCCH puncturing may be performed in relation to frequency hopping.
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公开(公告)号:US11838892B2
公开(公告)日:2023-12-05
申请号:US17589437
申请日:2022-01-31
Applicant: Apple Inc.
Inventor: Timothy F. Cox , Seunghee Han , Debdeep Chatterjee , Vallabhajosyula S. Somayazulu , Qiaoyang Ye , Salvatore Talarico , Maruti Gupta Hyde
CPC classification number: H04W68/02 , H04W52/0229
Abstract: Systems and methods of reducing power consumption associated with paging or cDRX mode are described. A wake-up receiver (WUR) wakes up from an idle mode or cDRX state. Whether a wake-up signal (WUS) has been received by the WUR is determined. The WUS is a low-complexity signal that is less complicated than a PDCCH or PDSCH and is repeated multiple times at resource elements as indicated in a configuration from an eNB. If received, a baseband transceiver wakes up for reception of a PDCCH for the UE in a PO when the UE is in the idle mode or a PDSCH for the UE when the UE is in the cDRX state.
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公开(公告)号:US11722352B2
公开(公告)日:2023-08-08
申请号:US17717890
申请日:2022-04-11
Applicant: Apple Inc.
Inventor: Jeongho Jeon , Joonyoung Cho , Michael Faerber , Seunghee Han , Honglei Miao
CPC classification number: H04L27/2666 , H04L5/0007
Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to process a configuration transmission carrying a half-tone shifting indicator. The second circuitry may be operable to select one or more subcarrier frequencies for Uplink (UL) transmission based on the half-tone shifting indicator. The third circuitry may be operable to generate a UL transmission for the one or more subcarrier frequencies. The half-tone shifting indicator may have a first value indicating application of a half-subcarrier offset, and a second value indicating no application of the half-subcarrier offset.
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95.
公开(公告)号:US11695459B2
公开(公告)日:2023-07-04
申请号:US17421991
申请日:2020-01-10
Applicant: Apple Inc.
Inventor: Alexey Khoryaev , Sergey Sosnin , Mikhail Shilov , Sergey Panteleev , Seunghee Han
CPC classification number: H04B7/0617 , H04B7/043 , H04B7/0695 , H04B7/088 , H04L5/0051 , H04W64/00
Abstract: A design for reference signals dedicated for positioning measurements in UL and DL directions and a mechanism for Tx/Rx beam pair selection for positioning is disclosed. The design can improve performance of positioning operation in NR communication systems, can improve resource efficiency of positioning operation in NR communication systems, and can reduce the amount of resources needed for PRS transmission, reduce latency and increase the positioning measurement quality.
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公开(公告)号:USRE49490E1
公开(公告)日:2023-04-11
申请号:US16931216
申请日:2020-07-16
Applicant: Apple Inc.
Inventor: Seunghee Han , Hong He , Jong-Kae Fwu
IPC: H04L1/18 , H04W36/22 , H04L5/14 , H04L1/00 , H04W68/00 , H04W48/12 , H04W4/70 , H04W52/38 , H04L1/16 , H04L5/00 , H04W28/08 , H04W24/10 , H04W72/04 , H04W52/02 , H04W72/00 , H04W92/02 , H04L1/1829 , H04L1/1607 , H04L1/1812 , H04L1/1867 , H04W72/0446 , H04W72/044 , H04W28/02 , H04W88/08
Abstract: Disclosed in some examples is a method for providing a HARQ response in an LTE network for a PUCCH format 1b. The method includes receiving one or more downlink assignments of a bundling window over a wireless downlink control channel; setting a reception status for each sub-frame of a downlink data channel in the bundling window based on whether the sub-frame on the downlink data channel was associated with a particular one of the received downlink assignments and based upon whether the sub-frame was successfully received; setting a reception status of sub-frames of the downlink data channel in the bundling window that did not have a corresponding downlink assignment to a predetermined value; and transmitting a response, the response based upon the reception statuses set by the response module.
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公开(公告)号:US20230081573A1
公开(公告)日:2023-03-16
申请号:US17985340
申请日:2022-11-11
Applicant: Apple Inc.
Inventor: Christian Ibars Casas , Seunghee Han
Abstract: Latency reduction techniques for radio access networks are described. In various embodiments, a reduced transmission time interval (rTTI) may be implemented in order to reduce air interface latency in a radio access network. In some embodiments, an rTTI block may be defined, and some operations may be performed in rTTI block-wise fashion in order to reduce the marginal overhead associated with implementation of the rTTI. In various embodiments in which an rTTI is implemented, DM-RS granularity may be improved by use of techniques that enable data and reference signals to be multiplexed within a same OFDM symbol. In some embodiments, a current transmission time interval (TTI) may be maintained, and latency reduction may be achieved via the use of novel techniques for one or more of code block (CB) segmentation, uplink (UL) resource element (RE) mapping, and HARQ cycle timing. Other embodiments are described and claimed.
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公开(公告)号:US20220394770A1
公开(公告)日:2022-12-08
申请号:US17887223
申请日:2022-08-12
Applicant: Apple Inc.
Inventor: Jeongho Jeon , Abhijeet Bhorkar , Seunghee Han , Hwan-Joon Kwon
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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公开(公告)号:US11510187B2
公开(公告)日:2022-11-22
申请号:US17181797
申请日:2021-02-22
Applicant: Apple Inc.
Inventor: Ralf Matthias Bendlin , Gang Xiong , Jong-Kae Fwu , Hong He , Yushu Zhang , Seunghee Han , Yuan Zhu
IPC: H04W72/04 , H04L5/00 , H04B1/7143 , H04L27/26 , H04L1/00
Abstract: Methods and apparatus are described for transmitting uplink control information (UCI) over an OFDMA-based uplink. In some embodiments, UCI symbols are mapped to resource elements (REs) in the time/frequency resource grid to maximize frequency diversity. In some embodiments, UCI is mapped in a manner that takes into account channel estimation performance by mapping UCI symbols to those REs that are closest (in terms of OFDM subcarriers/symbols) to REs that carry reference signals.
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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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