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公开(公告)号：US20210176745A1
公开(公告)日：2021-06-10
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
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：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：US11006404B2
公开(公告)日：2021-05-11
申请号：US17004351
申请日：2020-08-27
Applicant: Apple Inc.
Inventor： Ralf Matthias Bendlin , Debdeep Chatterjee , Seunghee Han
Abstract: Embodiments described herein include user equipment (UE), evolved node B (eNB), methods, and systems for narrowband Internet-of-Things (IoT) communications. Some embodiments particularly relate to control channel communications between UE and eNB in narrowband IoT communications. In one embodiment, a UE blind decodes a first control transmission from an evolved node B (eNB) by processing a first physical resource block comprising all subcarriers of the transmission bandwidth and all orthogonal frequency division multiplexed symbols of a first subframe to determine the first control transmission. In various further embodiments, various resource groupings of resource elements are used as part of the control communications.
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公开(公告)号：US11870716B2
公开(公告)日：2024-01-09
申请号：US17958529
申请日：2022-10-03
Applicant: Apple Inc.
Inventor： Ralf Matthias Bendlin , Gang Xiong , Jong-Kae Fwu , Hong He , Yushu Zhang , Seunghee Han , Yuan Zhu
IPC: H04L5/00 , H04W72/21 , H04B1/7143 , H04L27/26 , H04W72/044 , H04L1/00
CPC classification number: H04L5/0044 , H04B1/7143 , H04L5/0007 , H04L5/0051 , H04L5/0055 , H04L27/2613 , H04W72/044 , H04W72/21 , H04L1/0026
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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Patent Agency Ranking
公开(公告)号：US11201657B2
公开(公告)日：2021-12-14
申请号：US16881212
申请日：2020-05-22
Applicant: Apple Inc.
Inventor： Gang Xiong , Huaning Niu , Yushu Zhang , Jong-Kae Fwu , Yuan Zhu , Ralf Matthias Bendlin
Abstract: Disclosed herein are apparatuses, systems, and methods for reference signal design for initial acquisition, by receiving a first primary synchronization signal (PSS) and a first secondary synchronization signal (SSS) from a first transmit (Tx) beam, in first contiguous orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A UE can receive at least a second PSS and a second SSS from a second Tx beam in contiguous OFDM symbols of the downlink subframe. A UE can then detect beamforming reference signals (BRSs) corresponding to the first Tx beam and the second Tx beam, based on identification of physical cell ID information and timing information processed from the first PSS, the second PSS, the first SSS, and the second SSS. The UE can select the first Tx beam or the second Tx beam that was received with the highest power, based on the BRSs. Other embodiments are described.
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公开(公告)号：US10952188B2
公开(公告)日：2021-03-16
申请号：US16406808
申请日：2019-05-08
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：US20200287611A1
公开(公告)日：2020-09-10
申请号：US16881212
申请日：2020-05-22
Applicant: Apple Inc.
Inventor： Gang Xiong , Huaning Niu , Yushu Zhang , Jong-Kae Fwu , Yuan Zhu , Ralf Matthias Bendlin
Abstract: Disclosed herein are apparatuses, systems, and methods for reference signal design for initial acquisition, by receiving a first primary synchronization signal (PSS) and a first secondary synchronization signal (SSS) from a first transmit (Tx) beam, in first contiguous orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A UE can receive at least a second PSS and a second SSS from a second Tx beam in contiguous OFDM symbols of the downlink subframe. A UE can then detect beamforming reference signals (BRSs) corresponding to the first Tx beam and the second Tx beam, based on identification of physical cell ID information and timing information processed from the first PSS, the second PSS, the first SSS, and the second SSS. The UE can select the first Tx beam or the second Tx beam that was received with the highest power, based on the BRSs. Other embodiments are described.
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公开(公告)号：US20230023442A1
公开(公告)日：2023-01-26
申请号：US17958529
申请日：2022-10-03
Applicant: Apple Inc.
Inventor： Ralf Matthias Bendlin , Gang Xiong , Jong-Kae Fwu , Hong He , Yushu Zhang , Seunghee Han , Yuan Zhu
IPC: H04L5/00 , H04B1/7143 , H04L27/26 , H04W72/04
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：US11122580B2
公开(公告)日：2021-09-14
申请号：US16407143
申请日：2019-05-08
Applicant: Apple Inc.
Inventor： Gang Xiong , Hong He , Ralf Matthias Bendlin , Jong-Kae Fwu , Seunghee Han , Huaning Niu , Yushu Zhang , Yuan Zhu
Abstract: Embodiments of an Evolved Node-B (eNB), User Equipment (UE), and methods for flexible duplex communication are generally described herein. The eNB may transmit a downlink control information (DCI) block to the UE during a group of time-division duplex (TDD) sub-frames. The eNB may further receive an uplink control information (UCI) block from the UE during the group of TDD sub-frames. A first candidate flexible duplex format for the TDD sub-frames may include a downlink control portion and an uplink control portion. A second candidate flexible duplex format for the TDD sub-frames may include a downlink control portion and may exclude uplink control portions.
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