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公开(公告)号：US20240313831A1
公开(公告)日：2024-09-19
申请号：US18575947
申请日：2021-08-18
Applicant: QUALCOMM INCORPORATED
Inventor： Abdelrahman Mohamed Ahmed Mohamed Ibrahim , Juergen Cezanne , Naga Bhushan , Renqiu Wang , Krishna Kiran Mukkavilli , Pinar Sen , Seyong Park , Muhammad Sayed Khairy Abdelghaffar , Yu Zhang
IPC: H04B7/0456
CPC classification number: H04B7/0456
Abstract: Methods, systems, and devices for wireless communications are described. A transmitter may select a precoder from a codebook for precoding one or more signals for transmission to a receiver. The transmitter may select the precoder from the codebook based on antenna configurations at the transmitter and the receiver. The precoder may be constructed using one or more Slepian sequences. In some implementations, the Slepian sequences may be associated with a quantity of transmit antennas at the transmitter. For instance, a length of each Slepian sequence may correspond to (for example, be equal to) a quantity of transmit antennas at the transmitter. Further, the Slepian sequences may be associated with a bandwidth within which to concentrate the one or more signals. Once the transmitter selects the precoder, the transmitter may precode the one or more signals and transmit the precoded signals to the receiver.
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公开(公告)号：US20240275645A1
公开(公告)日：2024-08-15
申请号：US18168846
申请日：2023-02-14
Applicant: QUALCOMM Incorporated
Inventor： Wei Yang , Jing Jiang , Pinar Sen
Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein for a probabilistically shaped message to meet a quality requirement of an empirical probability distribution of the probabilistic shaped message being close to a target probability distribution. The closeness of the empirical probability distribution to the target probability distribution may be measured with a distribution closeness metric that is compared to a threshold. The distribution closeness metric may quantify a difference between the empirical probability distribution and the target probability distribution. Additionally, the distribution closeness metric may quantify a difference between respective moments of one or more orders of the empirical probability distribution and the target probability distribution.
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公开(公告)号：US20240250724A1
公开(公告)日：2024-07-25
申请号：US18156690
申请日：2023-01-19
Applicant: QUALCOMM Incorporated
Inventor： Seyong Park , Pinar Sen , Renqiu Wang , Peter Gaal , Naga Bhushan , Krishna Kiran Mukkavilli , Muhammad Sayed Khairy Abdelghaffar , Hwan Joon Kwon , Tingfang Ji
IPC: H04B7/0456 , H04B7/06
CPC classification number: H04B7/0456 , H04B7/063
Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may be configured to transmit one or more reference signals to a second wireless device using a first antenna array at the first wireless device and in accordance with a first precoder matrix. The first wireless device may receive, from the second wireless device based on the one or more reference signals, a feedback message indicating an estimated rotational misalignment, an estimated spatial misalignment, or both, between the first antenna array at the first wireless device and a second antenna array at the second wireless device. The first wireless device may then transmit a message to the second wireless device in accordance with a second precoder matrix that is modified relative to the first precoder matrix based at least in part on the estimated rotational misalignment, the estimated spatial misalignment, or both.
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公开(公告)号：US12021621B1
公开(公告)日：2024-06-25
申请号：US18155437
申请日：2023-01-17
Applicant: QUALCOMM Incorporated
Inventor： Pinar Sen , Wei Yang , Jing Jiang
CPC classification number: H04L1/0063 , H04L1/0009 , H04L1/0071
Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a transmitting device may generate a parity check matrix based on performing a lifting operation on a base matrix. Each column of the base matrix may correspond to a different variable node and each row may correspond to a different check node. The transmitting device may then generate a set of coded bits based on the parity check matrix and each coded bit of the set of coded bits may be associated with a respective variable node. Further, the transmitting device may interleave the set of coded bits such that subsets of the set of coded bits associated with a same variable node are mapped to a same channel reliability level and transmit the set of coded bits according to the interleaving.
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公开(公告)号：US11984979B1
公开(公告)日：2024-05-14
申请号：US18155437
申请日：2023-01-17
Applicant: QUALCOMM Incorporated
Inventor： Pinar Sen , Wei Yang , Jing Jiang
CPC classification number: H04L1/0063 , H04L1/0009 , H04L1/0071
Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a transmitting device may generate a parity check matrix based on performing a lifting operation on a base matrix. Each column of the base matrix may correspond to a different variable node and each row may correspond to a different check node. The transmitting device may then generate a set of coded bits based on the parity check matrix and each coded bit of the set of coded bits may be associated with a respective variable node. Further, the transmitting device may interleave the set of coded bits such that subsets of the set of coded bits associated with a same variable node are mapped to a same channel reliability level and transmit the set of coded bits according to the interleaving.
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Patent Agency Ranking
公开(公告)号：US12088370B2
公开(公告)日：2024-09-10
申请号：US17954198
申请日：2022-09-27
Applicant: QUALCOMM Incorporated
Inventor： Pinar Sen , Seyong Park , Abdelrahman Mohamed Ahmed Mohamed Ibrahim , Renqiu Wang , Peter Gaal , Naga Bhushan , Krishna Kiran Mukkavilli , Tingfang Ji
IPC: H04B7/0456 , H01Q3/26 , H04B7/0417
CPC classification number: H04B7/046 , H01Q3/267 , H04B7/0421
Abstract: Methods and apparatuses for wireless communication for line-of-sight Multiple-Input-Multiple-Output (LOS MIMO) are described. A first pilot signal is transmitted to a second device. The first pilot signal is at least one of a constant phase pilot or a linear phase ramped pilot for estimating a misalignment of a second antenna array of the second device with respect to a first antenna array of the first device.
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公开(公告)号：US11722188B1
公开(公告)日：2023-08-08
申请号：US17666755
申请日：2022-02-08
Applicant: QUALCOMM Incorporated
Inventor： Pinar Sen , Naga Bhushan , Peter Gaal , Seyong Park , Renqiu Wang , Krishna Kiran Mukkavilli , Tingfang Ji , Hwan Joon Kwon , Muhammad Sayed Khairy Abdelghaffar
IPC: H04B7/0456
CPC classification number: H04B7/0456
Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may identify a translational or rotational misalignment between a first antenna array of the first wireless device and a second antenna array of a second wireless device that is in line-of-sight (LoS) wireless communication with the first wireless device via a channel. The first wireless device may update a channel matrix for the channel based on the translational or rotational misalignment, where the first wireless device may update the channel matrix with one or more beam steering metrics of the first antenna array so as to improve a beam alignment between the first antenna array and the second antenna array. The first wireless device may communicate with the second wireless device in accordance with the updated channel matrix.
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公开(公告)号：US11647495B2
公开(公告)日：2023-05-09
申请号：US16131966
申请日：2018-09-14
Applicant: QUALCOMM Incorporated
Inventor： Seyong Park , Pinar Sen , Jay Kumar Sundararajan , Joseph Binamira Soriaga , Tingfang Ji , Naga Bhushan
CPC classification number: H04W72/0466 , H04L1/0056 , H04L1/08 , H04L5/0019 , H04L25/03866 , H04L27/2602 , H04L27/2684 , H04L27/3872 , H04W4/70
Abstract: The present disclosure describes the generation of long sequences from short sequences to support concurrent transmissions of large numbers of machine-type communication devices operating in a wireless communication system. These long sequences may be assigned to devices so that the devices can use the long sequences scramble their transmissions. The use of such long sequences permits many machine-type communication devices to transmit during the same time and frequency resource.
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公开(公告)号：US10686490B2
公开(公告)日：2020-06-16
申请号：US16143359
申请日：2018-09-26
Applicant: QUALCOMM Incorporated
Inventor： Seyong Park , Pinar Sen , Naga Bhushan , Tingfang Ji
Abstract: Methods, systems, and devices for wireless communications are described. A UE may use different modulation schemes, or different modulators, for a single data stream. The set of modulators may be based on a linear combination of a function of encoded bits to be transmitted. In some cases, the UE may use a different permutation or interleaving of the function of bits with the same linear function to generate a different set of modulators. The UE may use a combination of any one or more of the described techniques for generating a set of modulators. Different modulators may be cyclically repeated over time. The UE may apply a device-specific scrambling sequence and transmit the modulated symbols on an uplink channel. The base station may use matched filters and an element-wise estimator (ESE) to compute log-likelihood ratios (LLRs) for each bit of each UE in a received signal.
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公开(公告)号：US20190097678A1
公开(公告)日：2019-03-28
申请号：US16143359
申请日：2018-09-26
Applicant: QUALCOMM Incorporated
Inventor： Seyong Park , Pinar Sen , Naga Bhushan , Tingfang Ji
IPC: H04B1/7103 , H04L27/00
Abstract: Methods, systems, and devices for wireless communications are described. A UE may use different modulation schemes, or different modulators, for a single data stream. The set of modulators may be based on a linear combination of a function of encoded bits to be transmitted. In some cases, the UE may use a different permutation or interleaving of the function of bits with the same linear function to generate a different set of modulators. The UE may use a combination of any one or more of the described techniques for generating a set of modulators. Different modulators may be cyclically repeated over time. The UE may apply a device-specific scrambling sequence and transmit the modulated symbols on an uplink channel. The base station may use matched filters and an element-wise estimator (ESE) to compute log-likelihood ratios (LLRs) for each bit of each UE in a received signal.
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