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公开(公告)号：US12040927B2
公开(公告)日：2024-07-16
申请号：US17185644
申请日：2021-02-25
Applicant: QUALCOMM Incorporated
Inventor： Gokul Sridharan , Saeid Sahraei , June Namgoong , Peter Gaal , Krishna Kiran Mukkavilli , Tingfang Ji , Wei Yang
CPC classification number: H04L27/262 , H04L5/0048 , H04W72/04 , H04L27/2623
Abstract: Techniques for peak-to-average power ratio (PAPR) reduction are described. Wireless devices may provide signaling with respect to one or more PAPR shaping resources. For example, a wireless device may provide signaling of PAPR shaping capability information. PAPR shaping capability information may include information regarding one or more PAPR shaping resources the wireless device has a capability to implement. Additionally or alternatively, a wireless device may provide signaling of PAPR shaping information. PAPR shaping information may include information regarding shaping the signal by a wireless device prior to transmission in a communication link by implementing one or more PAPR shaping resources. Other aspects and features are also claimed and described.
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公开(公告)号：US11758530B2
公开(公告)日：2023-09-12
申请号：US17482314
申请日：2021-09-22
Applicant: QUALCOMM Incorporated
Inventor： Hung Dinh Ly , Saeid Sahraei , Gokul Sridharan , Krishna Kiran Mukkavilli
IPC: H04W72/04 , H04L27/26 , H04W72/044
CPC classification number: H04W72/0473 , H04L27/2614
Abstract: Aspects relate to mechanisms for wireless communication devices for tone reservation. A user equipment (UE) receives an indication of one or more peak-reduction tone (PRT) resources for a transmission of one or more signals for a base station. The UE transmits a first signal to the base station on an uplink. The UE transmits a second signal to a relay entity on a sidelink for reception by the base station. The second signal is transmitted on the sidelink utilizing the one or more PRT resources.
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公开(公告)号：US11677603B2
公开(公告)日：2023-06-13
申请号：US17241393
申请日：2021-04-27
Applicant: QUALCOMM Incorporated
Inventor： Saeid Sahraei , June Namgoong , Krishna Kiran Mukkavilli , Naga Bhushan , Tingfang Ji , Peter Gaal , Taesang Yoo , Gokul Sridaran , Shimman Arvind Patel
IPC: H04L27/26 , H04W72/0453
CPC classification number: H04L27/2614 , H04W72/0453
Abstract: Wireless communications systems may configure a subset of allocated resources (e.g., one or more resource elements (REs) of one or more allocated resource blocks (RBs)) as peak reduction tones (PRTs) for a peak-cancelation signal. For instance, wireless communications systems may configure a fixed PRT allocation based on a Costas array. In some examples, each column of a Costas array may correspond to a RB of a set of allocated resources. A transmitting device may thus identify one or more PRT REs based on the Costas array and a mapping of allocated RBs to the columns of the Costas array. For instance, a transmitting device may identify a pattern of PRT REs to use for a peak-cancellation signal based at least in part on a configured Costas array (e.g., where the peak-cancellation signal may reduce peaks of a corresponding data signal to ultimately reduce peak-to-average power ratio (PAPR) of a transmission).
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公开(公告)号：US11621799B2
公开(公告)日：2023-04-04
申请号：US17248846
申请日：2021-02-10
Applicant: QUALCOMM Incorporated
Inventor： Saeid Sahraei , Hung Dinh Ly , Tingfang Ji , Krishna Kiran Mukkavilli , Hwan Joon Kwon , June Namgoong , Taesang Yoo , Shimman Arvind Patel , Gokul Sridharan
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may interleave a signal, that is to be transmitted using discrete Fourier transform (DFT) spread orthogonal frequency-division multiplexing (DFT-s-OFDM), and a negative of the signal to obtain an interleaved signal prior to performing a DFT on the interleaved signal. The UE may transmit a DFT-s-OFDM signal that is based at least in part on the interleaved signal. Numerous other aspects are provided.
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公开(公告)号：US20230009137A1
公开(公告)日：2023-01-12
申请号：US17933467
申请日：2022-09-19
Applicant: QUALCOMM Incorporated
Inventor： Gokul Sridharan , Saeid Sahraei , June Namgoong , Peter Gaal , Krishna Kiran Mukkavilli , Tingfang Ji , Wei Yang
Abstract: Techniques for peak-to-average power ratio (PAPR) reduction are described. Wireless devices may use one or more PAPR shaping resources, such as expanded bandwidth and/or pulse-shaping filtering, for shaping a signal to reduce PAPR. For example, expanded bandwidth may be utilized for adding a cyclic affix (CA), such as may comprise a cyclic prefix (CP), cyclic suffix (CS), etc., and combinations thereof, to a frequency domain data signal to provide a CP augmented frequency domain data signal used to generate a reduced PAPR time domain data signal. Additionally or alternatively, pulse-shaping filtering may be applied to a frequency domain signal to provide a pulse-shaped frequency domain data signal used to generate a reduced PAPR time domain data signal. Other aspects and features are also claimed and described.
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Patent Agency Ranking
公开(公告)号：US12009894B2
公开(公告)日：2024-06-11
申请号：US17652804
申请日：2022-02-28
Applicant: QUALCOMM Incorporated
Inventor： Saeid Sahraei , Muhammad Sayed Khairy Abdelghaffar , Renqiu Wang , Lu Yuan , Joseph Patrick Burke , Tingfang Ji , Peter Gaal
IPC: H04L25/02 , H04B7/0426 , H04B7/06
CPC classification number: H04B7/0626 , H04B7/043 , H04B7/0695 , H04L25/0224
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network entity may receive a sounding reference signal (SRS) at a multi-panel system of the network entity, where the multi-panel system includes one or more sounded panels and one or more non-sounded panels. The network entity may estimate a channel to obtain channel state information (CSI) for the one or more sounded panels based at least in part on the SRS. The network entity may estimate CSI for the one or more non-sounded panels based at least in part on the CSI for the one or more sounded panels. The network entity may transmit or receive a communication based at least in part on the CSI for the one or more sounded panels and the CSI for the one or more non-sounded panels. Numerous other aspects are described.
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公开(公告)号：US11979838B2
公开(公告)日：2024-05-07
申请号：US17364460
申请日：2021-06-30
Applicant: QUALCOMM Incorporated
Inventor： Krishna Kiran Mukkavilli , Hung Dinh Ly , Saeid Sahraei , Gokul Sridharan
IPC: H04W52/24 , H04B17/309 , H04L27/26
CPC classification number: H04W52/242 , H04B17/309 , H04L27/2614
Abstract: Wireless communication techniques that include techniques for setting power of peak reduction tones are discussed. A UE may receive a signal. The UE may set power associated with at least one peak reduction tone in accordance with a path loss between the UE and a base station. The path loss may be in accordance with the received signal. Other aspects and features are also claimed and described.
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8.发明公开公开(公告)号：US20240007147A1
公开(公告)日：2024-01-04
申请号：US18253008
申请日：2021-01-14
Applicant: QUALCOMM INCORPORATED
Inventor： Saeid Sahraei , Renqiu Wang , Yu Zhang , Hung Dinh Ly , Krishna Kiran Mukkavilli
CPC classification number: H04B7/04013 , H04B7/2612 , H04B7/088 , H04B7/06966
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, abase station may employ a reconfigurable intelligent surface (RIS) that uses passive components to reflect incoming signals in one or more directions. The base station may dynamically configure the RIS to reflect an incoming signal in a specific direction. The base station may transmit, to one or more user equipments (UEs), a message indicating a configuration of one or more RISs. In some aspects, the configuration may include a location of a RIS, reflection angles of a RIS, or both. Based on the configuration, a UE may select a RIS to facilitate communications with the base station. The base station and the UE may communicate via the selected RIS. In some examples, the base station may communicate with one or more UEs via one or more RISs using RIS division multiple access (RDMA).
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公开(公告)号：US11770283B2
公开(公告)日：2023-09-26
申请号：US17356196
申请日：2021-06-23
Applicant: QUALCOMM Incorporated
Inventor： Wei Yang , Saeid Sahraei , Gokul Sridharan , Krishna Kiran Mukkavilli
IPC: H04L27/26
CPC classification number: H04L27/2618 , H04L27/2615
Abstract: Aspects of the disclosure relate to techniques for peak-to-average power ratio (PAPR) reduction based on a tone reservation (TR) algorithm. For a TR algorithm, a suitable subset of tones from among a full set of tones in a given resource allocation are reserved for use as peak reduction tones (PRT). An apparatus, such as a wireless communication device, selects a set of PRTs based on a deterministic pseudo-random tone selection algorithm, such as quadratic sampling, cubic sampling, or Fibonacci-type sampling. The apparatus determines a PAPR reduction waveform for transmission on the PRTs and transmits a data waveform multiplexed with the PAPR reduction waveform on resources corresponding to the resource allocation. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US11451425B2
公开(公告)日：2022-09-20
申请号：US17185603
申请日：2021-02-25
Applicant: QUALCOMM Incorporated
Inventor： Gokul Sridharan , Saeid Sahraei , June Namgoong , Peter Gaal , Krishna Kiran Mukkavilli , Tingfang Ji , Wei Yang
Abstract: Techniques for peak-to-average power ratio (PAPR) reduction are described. Wireless devices may use one or more PAPR shaping resources, such as expanded bandwidth and/or pulse-shaping filtering, for shaping a signal to reduce PAPR. For example, expanded bandwidth may be utilized for adding a cyclic affix (CA), such as may comprise a cyclic prefix (CP), cyclic suffix (CS), etc., and combinations thereof, to a frequency domain data signal to provide a CP augmented frequency domain data signal used to generate a reduced PAPR time domain data signal. Additionally or alternatively, pulse-shaping filtering may be applied to a frequency domain signal to provide a pulse-shaped frequency domain data signal used to generate a reduced PAPR time domain data signal. Other aspects and features are also claimed and described.
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