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公开(公告)号：US20180249491A1
公开(公告)日：2018-08-30
申请号：US15965031
申请日：2018-04-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kelvin Kar Kin Au , Hosein Nikopour , Petar Djukic , Zhihang Yi , Alireza Bayesteh , Jianglei Ma , Mohammadhadi Baligh , Liqing Zhang
IPC: H04W72/12
Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.
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公开(公告)号：US20180077685A1
公开(公告)日：2018-03-15
申请号：US15701035
申请日：2017-09-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yiqun Wu , Alireza Bayesteh , Yan Chen , Jianglei Ma
Abstract: A method for non-orthogonal multiple access (NoMA) transmission is provided. In an embodiment, a method in a network device for transmission of a NoMA signal includes obtaining information bits. The method also includes transmitting the NoMA signal. The NoMA signal includes one or more layers. The NoMA signal is generated according to the information bits and according to a set of signal processing operations selected from a plurality of signal processing operations. At least one of the set of signal processing operations is layer-specific or UE-specific or a combination thereof.
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公开(公告)号：US20170310419A1
公开(公告)日：2017-10-26
申请号：US15630085
申请日：2017-06-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Alireza Bayesteh , Hosein Nikopour , Jianglei Ma
IPC: H04L1/00
Abstract: Systems, methods, and apparatuses for providing waveform adaptation are provided. In an example, a method is provided for identifying a plurality of candidate waveforms, and selecting one of the candidate waveforms for data transmission. The candidate waveforms may be identified in accordance with one or more criteria, such as a transmission capability of the transmitting device, a reception capability of the receiving device, a desired Peak-to-Average-Power-Ratio (PAPR) characteristic, adjacent channel interference (ACI) rejection requirements, spectrum localization requirements, and other criteria. The waveform selected for data transmission may be selected in accordance with one or more waveform selection criteria, such as traffic characteristic, application types, etc.
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公开(公告)号：US09614576B2
公开(公告)日：2017-04-04
申请号：US14212583
申请日：2014-03-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hosein Nikopour , Alireza Bayesteh , Mohammadhadi Baligh
CPC classification number: H04B1/707 , H04J13/0007
Abstract: Method and apparatus embodiments are provided for low complexity message passing algorithm (MPA) detection with substantially minor or tolerated performance loss compared to the standard MPA. A method includes calculating, at a detector, a plurality of function nodes (FNs) according to a plurality of received multiplexing signals for a one or a plurality of user equipments (UEs) using a plurality of first MPA computations that map a plurality of variable nodes (VNs) corresponding to the UEs to the FNs and using a priori information in an initial vector of probabilities for each of the VNs, excluding from the first MPA computations a plurality of first relatively small multiplication terms, updating the probabilities for the VNs using the last calculated FNs and a plurality of second MPA computations that map the FNs to the VNs, and excluding a plurality of second relatively small multiplication terms from the second MPA calculations.
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公开(公告)号：US11013024B2
公开(公告)日：2021-05-18
申请号：US15965031
申请日：2018-04-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kelvin Kar Kin Au , Hosein Nikopour , Petar Djukic , Zhihang Yi , Alireza Bayesteh , Jianglei Ma , Mohammadhadi Baligh , Liqing Zhang
Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.
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Patent Agency Ranking
公开(公告)号：US10784984B2
公开(公告)日：2020-09-22
申请号：US15630085
申请日：2017-06-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Alireza Bayesteh , Hosein Nikopour , Jianglei Ma
Abstract: Systems, methods, and apparatuses for providing waveform adaptation are provided. In an example, a method is provided for identifying a plurality of candidate waveforms, and selecting one of the candidate waveforms for data transmission. The candidate waveforms may be identified in accordance with one or more criteria, such as a transmission capability of the transmitting device, a reception capability of the receiving device, a desired Peak-to-Average-Power-Ratio (PAPR) characteristic, adjacent channel interference (ACI) rejection requirements, spectrum localization requirements, and other criteria. The waveform selected for data transmission may be selected in accordance with one or more waveform selection criteria, such as traffic characteristic, application types, etc.
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公开(公告)号：US10778385B2
公开(公告)日：2020-09-15
申请号：US16119841
申请日：2018-08-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mahmoud Taherzadeh Boroujeni , Alireza Bayesteh , Mohammadhadi Baligh , Jianglei Ma
Abstract: Systems and methods are provided for spreading symbols over multiple time-frequency resources that rely on simple base constellations that can be sent over a frequency tone or time slot. A set of input bits (or an input symbol) are mapped to K symbols, and a symbol-to-resource-element mapping is applied that maps the K symbols to resource units. The mapping to the K symbols may be a linear mapping that maps an input symbol to K target tones through a 2K×2 real matrix, where input symbol is a complex point in a base constellation, and is considered as a 2-dimensional real vector. Up to K co-orthogonal 2K×2 real matrices (whose columns are orthogonal to each other) can be associated with the subset of K target tones. Each of the K co-orthogonal matrices can be used for mapping of an independent symbol from a separate steam of symbols which can be associated to a single UE or separate UEs.
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18.发明申请公开(公告)号：US20190044571A1
公开(公告)日：2019-02-07
申请号：US16156615
申请日：2018-10-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mahmoud Taherzadeh Boroujeni , Alireza Bayesteh , Mohammadhadi Baligh
IPC: H04B1/707
CPC classification number: H04B1/707 , H04B2201/709718 , H04J2011/0009 , H04L29/08
Abstract: Forward error correction encoding is applied to a first stream of input bits associated with a first data layer to generate a first stream of coded bits. The first steam of coded bits is mapped to K1 binary streams. A first layer-specific set of stream-specific modulators are applied to the K1 binary streams to generate K1 independent complex-valued symbol streams. The symbol streams are transmitted using T1 resource elements out of N1 resource elements. The T1 resource elements are defined by a first layer-specific signature of length N1, where 1≤T1
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公开(公告)号：US20190013906A1
公开(公告)日：2019-01-10
申请号：US16119841
申请日：2018-08-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mahmoud Taherzadeh Boroujeni , Alireza Bayesteh , Mohammadhadi Baligh , Jianglei Ma
Abstract: Systems and methods are provided for spreading symbols over multiple time-frequency resources that rely on simple base constellations that can be sent over a frequency tone or time slot. A set of input bits (or an input symbol) are mapped to K symbols, and a symbol-to-resource-element mapping is applied that maps the K symbols to resource units. The mapping to the K symbols may be a linear mapping that maps an input symbol to K target tones through a 2K×2 real matrix, where input symbol is a complex point in a base constellation, and is considered as a 2-dimensional real vector. Up to K co-orthogonal 2K×2 real matrices (whose columns are orthogonal to each other) can be associated with the subset of K target tones. Each of the K co-orthogonal matrices can be used for mapping of an independent symbol from a separate steam of symbols which can be associated to a single UE or separate UEs.
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公开(公告)号：US20180278362A1
公开(公告)日：2018-09-27
申请号：US15992916
申请日：2018-05-30
Applicant: Huawei Technologies Co, Ltd
Inventor： Alireza Bayesteh , Hosein Nikopour , Jianglei Ma
IPC: H04L1/00
Abstract: Systems, methods, and apparatuses for providing waveform adaptation are provided. In an example, a method is provided for identifying a plurality of candidate waveforms, and selecting one of the candidate waveforms for data transmission. The candidate waveforms may be identified in accordance with one or more criteria, such as a transmission capability of the transmitting device, a reception capability of the receiving device, a desired Peak-to-Average-Power-Ratio (PAPR) characteristic, adjacent channel interference (ACI) rejection requirements, spectrum localization requirements, and other criteria. The waveform selected for data transmission may be selected in accordance with one or more waveform selection criteria, such as traffic characteristic, application types, etc.
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