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公开(公告)号：US09735931B2
公开(公告)日：2017-08-15
申请号：US14528911
申请日：2014-10-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhihang Yi , Hosein Nikopour , Alireza Bayesteh
CPC classification number: H04L5/0016 , H04L5/0048 , H04L27/0006
Abstract: Disclosed herein are an active resource unit detector and a method of use thereof. An embodiment method of detecting active resource units among a plurality of potential resource units includes receiving an aggregate signal containing active pilots transmitted over the active resource units via random access transmissions. The active pilots are then detected and respectively associated with the active resource units according to a pilot-to-resource unit mapping.
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公开(公告)号：US20170214509A1
公开(公告)日：2017-07-27
申请号：US15482463
申请日：2017-04-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Alireza Bayesteh , Jianglei Ma , Hosein Nikopour , Zhihang Yi
Abstract: Embodiments are provided herein for increasing low density signature space for multiplexed transmissions for a plurality of users. The embodiments include generating a virtual signature using a combination operation on a plurality of basic signatures. The generated virtual signatures are provisioned as basic resource units (BRUs) for transmissions for corresponding users. The combination operation is a row-wise or column-wise permutation for combining, in each of the virtual signatures, rows or columns of corresponding basic signatures. The rows or columns represent sequences of frequency bands at one time interval or sequences of allocated time intervals at one frequency band. Alternatively, the combination operation is intra-basic resource unit (BRU) hopping. The embodiments also include generating a plurality of BRU sets comprised of virtual signatures. Each of the BRU sets is provisioned for a corresponding user.
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公开(公告)号：US20250147143A1
公开(公告)日：2025-05-08
申请号：US19003812
申请日：2024-12-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ahmed Wagdy Abdelwahab Shaban , Alireza Bayesteh
Abstract: Some embodiments of the present application provide for grouping of User Equipment (UEs) in clusters and/or tiers. The grouping may be based on a dynamically updated mean squared error-position/relative position map maintained at a transmission point. Additionally, grouping may be implemented in a hierarchical and cooperative manner, such that some UEs act, in a higher tier, as an Anchor UE to other UEs in lower tiers. Furthermore, the UEs may be understood to self-organize into clusters of UEs. A cluster of UEs may be represented by a single, representative UE to reduce signaling overhead between UEs in a given UE cluster and various Anchor UEs and/or transmission points. Moreover, cooperation between UEs in the same cluster may be based on sensing and on sharing, among the UEs, a relative position estimate and an position estimation MSE associated with the relative position estimate.
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44.发明授权公开(公告)号：US11206113B2
公开(公告)日：2021-12-21
申请号：US16565744
申请日：2019-09-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sanjeewa Herath , Alireza Bayesteh , Yiqun Ge , Jianglei Ma
Abstract: A system and method of non-orthogonal multiple access (NoMA) transmission using a configurable NoMA scheme is provided. A bit level processor, a modulation block, a phase and amplitude adjuster, and a symbol to resource element mapper collectively produce a NoMA signal for output or transmission. A NoMA scheme implemented by the system and method is configurable through one or more NoMA configuration inputs that configure one or more of the bit level processor, the modulation block, the phase and amplitude adjustment block and the symbol to resource element mapper. A multiple access (MA) signature produced by the apparatus once configured for the particular NoMA scheme is selectable through one or more MA signature inputs.
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45.发明授权公开(公告)号：US11102786B2
公开(公告)日：2021-08-24
申请号：US15910238
申请日：2018-03-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mohamed Adel Salem , Toufiqul Islam , Sanjeewa Herath , Alireza Bayesteh
Abstract: Methods and devices for enhancing the spectral efficiency and/or reliability of uplink transmission without grant are provided. Uplink transmissions without grant are transmitted by UEs or received by base stations in accordance with resource groups that map initial uplink transmissions without grant and non-zero numbers of re-transmissions without grant to sub-regions of a grant-free region of a time-frequency resource.
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Patent Agency Ranking
公开(公告)号：US11019645B2
公开(公告)日：2021-05-25
申请号：US15964894
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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公开(公告)号：US10911281B2
公开(公告)日：2021-02-02
申请号：US15290652
申请日：2016-10-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yu Cao , Hosein Nikopour , Alireza Bayesteh
Abstract: Longer pilot sequences can be supported by transmitting pilot values of a given pilot sequence over different orthogonal frequency division multiplexed (OFDM) symbols of an uplink frame. The pilot values may be contiguous, or non-contiguous, with one another in the time domain. Consecutive pilot values in a pilot sequence may be transmitted in different OFDM symbols of the frame. For example, odd pilot values (e.g., P1, P3, P5 . . . ) in a pilot sequence may be transmitted over a different OFDM symbol than even pilot values (e.g., P2, P4, P6 . . . ) in the pilot sequence. Alternatively, a leading subset of pilot values in a pilot sequence is transmitted over a different OFDM symbol than a trailing subset of pilot values in the pilot sequence.
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公开(公告)号：US10887898B2
公开(公告)日：2021-01-05
申请号：US15204751
申请日：2016-07-07
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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公开(公告)号：US10862637B2
公开(公告)日：2020-12-08
申请号：US16184002
申请日：2018-11-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jung Hoon Suh , Alireza Bayesteh , Osama Aboul-Magd , Kwok Shum Au
Abstract: In accordance with embodiments, methods and systems for data transmissions are disclosed. A station (STA) transmits an orthogonal frequency division multiplexing (OFDM) frame to an access point (AP). The OFDM frame comprises an OFDM symbol. The OFDM symbol comprises data tones and pilot tones. The total number of the data tones and the pilot tones in the OFDM symbol is divisible by 4. In some embodiments, the OFDM symbol may comprises 232 data tones, 8 pilot tones, 5 direct current (DC) tones, and 11 edge tones. The 232 data tones and 8 pilot tones of the OFDM symbol may be segmented to a set of 15 blocks for channel estimation between the AP and the STA.
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公开(公告)号：US20200153571A1
公开(公告)日：2020-05-14
申请号：US16184002
申请日：2018-11-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jung Hoon Suh , Alireza Bayesteh , Osama Aboul-Magd , Kwok Shum Au
Abstract: In accordance with embodiments, methods and systems for data transmissions are disclosed. A station (STA) transmits an orthogonal frequency division multiplexing (OFDM) frame to an access point (AP). The OFDM frame comprises an OFDM symbol. The OFDM symbol comprises data tones and pilot tones. The total number of the data tones and the pilot tones in the OFDM symbol is divisible by 4. In some embodiments, the OFDM symbol may comprises 232 data tones, 8 pilot tones, 5 direct current (DC) tones, and 11 edge tones. The 232 data tones and 8 pilot tones of the OFDM symbol may be segmented to a set of 15 blocks for channel estimation between the AP and the STA.
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