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公开(公告)号：US20230040839A1
公开(公告)日：2023-02-09
申请号：US17886120
申请日：2022-08-11
Applicant: QUALCOMM Incorporated
Inventor： Jing JIANG , Joseph Binamira Soriaga , Tingfang Ji , Kambiz Azarian Yazdi , Krishna Kiran Mukkavilli , John Edward Smee
Abstract: Methods, systems, and devices are described for fountain hybrid automatic repeat request (HARQ) for reliable low latency communication. A wireless device may transmit a data block based on a low latency operational mode. The device may then transmit a number of redundancy versions of the data block prior to determining whether an acknowledgement (ACK) has been received. In some examples the ACK may be an augmented ACK, which may be based on the number of redundancy versions received prior to successfully decoding the data block, and which may include an additional resource request. In some examples, the device may select an updated modulation and coding scheme (MCS) based on the augmented ACK. In some examples, the device may increase a number of frequency resources (e.g., component carriers) used for transmission based on the augmented ACK.
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公开(公告)号：US11516058B2
公开(公告)日：2022-11-29
申请号：US17199788
申请日：2021-03-12
Applicant: QUALCOMM Incorporated
Inventor： Krishna Kiran Mukkavilli , June Namgoong , Taesang Yoo , Naga Bhushan , Tingfang Ji
Abstract: Systems and methods providing peak to average power ratio (PAPR) shaping for PAPR reduction using, for example, an extra-allocation peak reduction tone (PRT) signal processing technique are described. Carrier resources outside of carrier resources allocated for data transmission may be utilized for extra-allocation PRTs. Use of extra-allocation carrier resources for transmitting extra-allocation PRTs may be subject to a power threshold (T). The extra-allocation carrier resources and/or extra-allocation PRTs may be configured for peak to average power shaping of signal transmissions by a wireless device, such as base stations, user equipments (UEs), etc. Other aspects and features are also claimed and described.
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公开(公告)号：US11489646B2
公开(公告)日：2022-11-01
申请号：US16456876
申请日：2019-06-28
Applicant: Qualcomm Incorporated
Inventor： Jing Jiang , Joseph Binamira Soriaga , Tingfang Ji , Kambiz Azarian Yazdi , Krishna Kiran Mukkavilli , John Edward Smee
Abstract: Methods, systems, and devices are described for fountain hybrid automatic repeat request (HARD) for reliable low latency communication. A wireless device may transmit a data block based on a low latency operational mode. The device may then transmit a number of redundancy versions of the data block prior to determining whether an acknowledgement (ACK) has been received. In some examples the ACK may be an augmented ACK, which may be based on the number of redundancy versions received prior to successfully decoding the data block, and which may include an additional resource request. In some examples, the device may select an updated modulation and coding scheme (MCS) based on the augmented ACK. In some examples, the device may increase a number of frequency resources (e.g., component carriers) used for transmission based on the augmented ACK.
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公开(公告)号：US11469796B2
公开(公告)日：2022-10-11
申请号：US16996321
申请日：2020-08-18
Applicant: QUALCOMM Incorporated
Inventor： Alexandros Manolakos , Weimin Duan , Krishna Kiran Mukkavilli
IPC: H04B7/04 , H04B7/0456 , H04B7/06 , H04W72/04 , H04B7/0426
Abstract: A user equipment (UE) receives a maximum downlink (DL) Multiple-Input Multiple-Output (MIMO) layer configuration for DL communications, such as control signals or data signals, in one or more bandwidth parts (BWPs) and a positioning reference signal (PRS) configuration for receiving DL PRS. The UE receives DL PRS in an active BWP using a number of reception antennas based on, e.g., at least equal to, the maximum number of DL MIMO layers in the active bandwidth part. The UE may be configured to transmit uplink (UL) PRS, e.g., SRS for positioning purposes, using at least a maximum number of transmission antennas that is configured for communications purposes.
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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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Patent Agency Ranking
公开(公告)号：US11438038B1
公开(公告)日：2022-09-06
申请号：US17178175
申请日：2021-02-17
Applicant: QUALCOMM Incorporated
Inventor： June Namgoong , Taesang Yoo , Naga Bhushan , Hwan Joon Kwon , Krishna Kiran Mukkavilli , Tingfang Ji
IPC: H04L23/02 , H04B7/0452 , H04B7/0456
Abstract: A base station may apply a nonlinear precoding to data for MU-MIMO transmission to a set of paired UEs to generate a first set of precoder symbols, and apply a linear precoding to the first set of precoder symbols to generate a second set of precoder symbols using a linear precoding matrix. The base station may normalize the second set of precoder symbols, and scale the second set of precoder symbols, before transmission of the data, using a scaling factor based on one or more of modulation symbols or a channel matrix. The base station may apply the linear precoding to DMRS associated with the data. The base station may transmit the second set of precoder symbols based on the second set of precoder symbols and the DMRS to the set of paired UEs.
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公开(公告)号：US11412521B1
公开(公告)日：2022-08-09
申请号：US17190262
申请日：2021-03-02
Applicant: QUALCOMM Incorporated
Inventor： Jay Kumar Sundararajan , Yeliz Tokgoz , Taesang Yoo , Naga Bhushan , Hwan Joon Kwon , Krishna Kiran Mukkavilli , Tingfang Ji
Abstract: A method of wireless communications by a user equipment (UE) includes receiving location-based downlink interference assistance information according to a current geolocation of the UE. The method also includes estimating downlink interference according to the location-based downlink interference assistance information.
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公开(公告)号：US11374711B2
公开(公告)日：2022-06-28
申请号：US16538548
申请日：2019-08-12
Applicant: QUALCOMM INCORPORATED
Inventor： Joseph Binamira Soriaga , Jing Jiang , Krishna Kiran Mukkavilli , Pavan Kumar Vitthaladevuni , Naga Bhushan , Tingfang Ji , John Edward Smee
IPC: H04L5/00 , H04B7/0452 , H04B7/06
Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal (SRS) to the base station. The base station characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. As part of applying the channel information, the base station forms the beam to the UE based on the uplink channel information obtained from the SRS. The UE may include an array of antennas, each UE transmitting a different SRS that the base station receives and uses to characterize the downlink. Multiple UEs (or a single UE with multiple antennas) transmit SRS at the same time and frequency allocation (non-orthogonal), but with each sending its own unique SRS. Further, multiple UEs (or a single UE with multiple antennas) may send their SRS at unique time/frequency allocations (orthogonal).
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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：US20220095355A1
公开(公告)日：2022-03-24
申请号：US17475170
申请日：2021-09-14
Applicant: QUALCOMM Incorporated
Inventor： Yuchul Kim , Peter Pui Lok Ang , Hwan Joon Kwon , Krishna Kiran Mukkavilli , Jay Kumar Sundararajan , Yeliz Tokgoz , Linhai He , Huilin Xu , Jing Lei
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine a downlink configuration including a set of resources for receiving downlink transmissions. The UE may determine, based on the downlink configuration, an uplink configuration including a set of resources for transmitting scheduling requests at a set of scheduling request occasions. In some aspects, the set of scheduling request occasions may be arranged according to a non-uniform spacing pattern in the time domain. The UE may transmit, to a base station, one or more scheduling requests based on the uplink configuration.
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