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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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公开(公告)号：US20220248405A1
公开(公告)日：2022-08-04
申请号：US17163277
申请日：2021-01-29
Applicant: QUALCOMM Incorporated
Inventor： Hung Dinh Ly , Gokul Sridharan
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling indicating a set of resources for transmitting a set of uplink shared channel transmissions and a set of demodulation reference signals (DMRSs) having phase coherence across a set of transmission time intervals (TTIs). The UE may receive, from the base station, a control message indicating a cancellation of a first resource of the set of resources. The UE may determine one or more phase-continuity conditions for the set of resources based on receiving the control message indicating the cancellation of the first resource. The UE may transmit, in remaining resources of the set of resources, at least a subset of the set of uplink shared channel transmissions and at least a subset of the set of DMRSs in accordance with the one or more phase-continuity conditions.
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公开(公告)号：US11374686B2
公开(公告)日：2022-06-28
申请号：US17166993
申请日：2021-02-03
Applicant: QUALCOMM Incorporated
Inventor： Wei Yang , Yi Huang , Hung Dinh Ly , Gokul Sridharan , Hwan Joon Kwon , Wanshi Chen
IPC: H04L1/00 , H04B7/0413
Abstract: A method of wireless communication at a transmitting device includes adding parity check bits to a set of information bits. The method also includes generating a non-coherent transmission signal by mapping the parity check bits and the set of information bits into a sequence of complex symbols. Further, the method may include transmitting the non-coherent transmission signal to a receiving device. A method of wireless communication at a receiving device includes receiving, from a transmitting device, a non-coherent signal having at least one segment. Each segment comprises a sequence of complex symbols corresponding to information bits and parity check bits. The method also includes jointly detecting the sequences from each segment of the received non-coherent signal by using the parity check bits.
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公开(公告)号：US20220140980A1
公开(公告)日：2022-05-05
申请号：US17453308
申请日：2021-11-02
Applicant: QUALCOMM Incorporated
Inventor： Yi Huang , Gokul Sridharan , Wei Yang , Peter Gaal , Juan Montojo , Hwan Joon Kwon , Krishna Kiran Mukkavilli , Tingfang Ji
IPC: H04L5/00
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support use of common sequence pools for non-coherent transmissions according to one or more aspects. In a first aspect, a method of wireless communication includes converting, by a wireless communication device, an information bit stream to an integer value. The method also includes selecting, by the wireless communication device, a sequence from a common sequence pool based on the integer value. The common sequence pool has a nested structure of sequences which map different length information bit streams with the same most significant bit or bits to the same sequences. The method further includes transmitting, by the wireless communication device, a non-coherent transmission indicating the sequence. Other aspects and features are also claimed and described.
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公开(公告)号：US11296827B2
公开(公告)日：2022-04-05
申请号：US16523911
申请日：2019-07-26
Applicant: QUALCOMM Incorporated
Inventor： Wei Yang , Yi Huang , Peter Gaal , Wanshi Chen , Joseph Binamira Soriaga , Gokul Sridharan
Abstract: Certain aspects of the present disclosure provide techniques for wireless communication. The techniques include a method wireless communication by a user equipment including receiving a configuration message, wherein the configuration message in part configures the UE to communicate coordinated transmissions with a plurality of transmission reception points using a coordinated transmission mode. The method further includes, receiving one or more physical downlink shared channel transmissions from a plurality of transmission reception points in accordance with the coordinated transmission mode. The method further includes, selecting a HARQ-ACK feedback mode based in part on the coordinated transmission mode. The method further includes, transmitting HARQ-ACK feedback to at least one of the plurality of transmission reception points using the selected HARQ-ACK feedback mode.
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Patent Agency Ranking
公开(公告)号：US20210344545A1
公开(公告)日：2021-11-04
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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公开(公告)号：US11159221B2
公开(公告)日：2021-10-26
申请号：US16830053
申请日：2020-03-25
Applicant: QUALCOMM Incorporated
Inventor： Alexandros Manolakos , Wei Yang , Gokul Sridharan , Yi Huang
IPC: H04B7/06 , H04B7/0456 , H04W72/12 , H04W72/14 , H04B1/713 , H04W80/02 , H04L1/18 , H04W8/24 , H04W76/27
Abstract: Aspects are provided allowing UEs with non-coherent or partially coherent antennas to re-interpret TPMI received in DCI into a set of TPMIs corresponding to different subbands. The UE receives a TPMI associated with at least one first antenna and at least one second antenna which are non-coherent with each other, and the UE determines a set of TPMIs including a first and second TPMI based on the received TPMI. The set of TPMIs include at least one TPMI different from the received TPMI. The UE transmits, based on the first TPMI, from the at least one first antenna within at least one first subband. The UE also transmits, based on the second TPMI, from the at least one second antenna within at least one second subband different from the at least one first subband. Thus, full power transmission based on re-interpreted TPMI with reduced DCI overhead may result.
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公开(公告)号：US11101965B2
公开(公告)日：2021-08-24
申请号：US16596655
申请日：2019-10-08
Applicant: QUALCOMM Incorporated
Inventor： Yi Huang , Amir Aminzadeh Gohari , Gokul Sridharan , Wei Yang , Chun-Hao Hsu
Abstract: The present disclosure relates to methods and devices for communication which may include a user equipment (UE) and a base station. In one aspect, the UE may receive a trigger to measure an uplink Aperiodic Channel State Information Reference Signal (A-CSI-RS). The UE may also receive an allocation of a first resource for an uplink shared channel. Additionally, the UE can receive at least one indication for an A-CSI report to comprise a null A-CSI report. Moreover, the UE can determine whether to alter another uplink transmission. In some aspects, this determination can be based, at least in part, on whether the first resource allocated for the uplink channel overlaps in time with a second resource for the other uplink transmission.
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公开(公告)号：US20210144648A1
公开(公告)日：2021-05-13
申请号：US17066644
申请日：2020-10-09
Applicant: QUALCOMM Incorporated
Inventor： Yi Huang , Prashanth Haridas Hande , Jay Kumar Sundararajan , Gokul Sridharan , Wei Yang , Wanshi Chen , Krishna Kiran Mukkavilli , Allen Minh-Triet Tran , Joseph Patrick Burke , Naga Bhushan
Abstract: Generally, the described techniques provide for efficiently transmitting uplink signals to a base station using shared antennas associated with different power classes. A first device may be in communications with a base station using local antennas and may identify a second device having auxiliary antennas available for transmitting uplink signals to the base station. The local and auxiliary antennas may be associated with different power classes, and the first device may transmit a message to a base station indicating that the first device is capable of transmitting using antennas associated with different power classes. The first device may then receive configurations from a base station of different transmit powers to transmit on the antennas associated with the different power classes, and the first device may transmit uplink signals to the base station in accordance with the different transmit power configurations.
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公开(公告)号：US20210105724A1
公开(公告)日：2021-04-08
申请号：US16948833
申请日：2020-10-01
Applicant: QUALCOMM INCORPORATED
Inventor： Yi Huang , Gokul Sridharan , Wanshi Chen , Wei Yang , Peter Gaal
Abstract: Wireless communications systems and methods related to wireless communications in a system are provided. A user equipment (UE) may transmit to a base station (BS), an indication of a maximum transmit power capability of the UE. The UE may receive from the BS, a transmit precoding configuration based on the UE's maximum transmit power capability. Additionally, the UE may transmit to the BS, a communication signal using the transmit precoding configuration.
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