公开(公告)号：US20220286341A1

公开(公告)日：2022-09-08

申请号：US17187522

申请日：2021-02-26

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Elshafie ,  Yi Huang ,  Hwan Joon Kwon

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may identify an angle parameter for encoding uplink messages using a fractional Fourier Transform (FrFFT). A base station may transmit a set of angle parameters or a single angle parameter that the UE is to use for encoding an uplink message. The UE may select an alpha value from the set of alpha values for the encoding. The UE may transmit an indication of a set of proposed angle parameters to the base station, and the base station may determine and indicate one of or a subset of the received set of proposed angle parameters to the UE. The base station may indicate a correspondence between angle parameters and beam configurations, and the UE may identify an alpha parameter value based on a subsequently indicated beam configuration.

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.

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

IPC: H04W72/08 ,  H04W72/04

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.

公开(公告)号：US20220225280A1

公开(公告)日：2022-07-14

申请号：US17148876

申请日：2021-01-14

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Seyedkianoush Hosseini ,  Wanshi Chen ,  Hwan Joon Kwon

IPC: H04W72/02 ,  H04W76/28 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. In some cases, a sidelink user equipment (UE) operating in a power saving mode may identify a resource reservation configuration for communicating within a resource pool allocated for sidelink communications. The UE may operate in a first power state of the power saving mode during a sensing window. The sensing window may correspond to a resource selection window of the resource pool. The UE may transition, after the sensing window, from the first power state to a second power state that may consume more power than the first power state. The UE may identify a subset of resources of the resource pool in the resource selection window that are available for sidelink transmission by the UE based on transitioning between the first power state and the second power state.

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.

公开(公告)号：US11349697B2

公开(公告)日：2022-05-31

申请号：US17326099

申请日：2021-05-20

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Elshafie ,  Yi Huang ,  Hwan Joon Kwon

IPC: H04L27/26

Abstract: An apparatus for wireless communication includes a receiver configured to receive control information associated with a non-coherent transmission to a base station. The apparatus further includes a transmitter configured to perform the non-coherent transmission based on the control information. The non-coherent transmission includes transmission of a codepoint to the base station, and the codepoint is determined based a diagonalized base sequence parameter matrix, a first discrete Fourier transform (DFT) matrix of a first size, and a second DFT matrix of a second size.

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.

公开(公告)号：US20220110163A1

公开(公告)日：2022-04-07

申请号：US17464493

申请日：2021-09-01

Applicant: QUALCOMM Incorporated

Inventor： Yongjun Kwak ,  Jing Lei ,  Huilin Xu ,  Hung Dinh Ly ,  Yuchul Kim ,  Seyedkianoush Hosseini ,  Hwan Joon Kwon

IPC: H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A base station determines configuration information for a random access procedure, where the configuration information includes a repetition pattern associated with a first message of the random access procedure. A user equipment (UE) receives, from the base station, a configuration message that indicates the configuration information for the random access procedure. The UE determines a repetition pattern associated with a first message of the random access procedure based on the configuration information. The base station receives, from the UE, multiple instances of the first message based on the repetition pattern.

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

IPC: H04W72/12 ,  H04W76/28

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.

公开(公告)号：US20220095324A1

公开(公告)日：2022-03-24

申请号：US17447563

申请日：2021-09-13

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Peter Gaal ,  Wei Yang ,  Ahmed Elshafie ,  Krishna Kiran Mukkavilli ,  Hwan Joon Kwon ,  Tingfang Ji

IPC: H04W72/12 ,  H04L5/00

Abstract: Aspects are provided which allow for multiplexing of higher priority uplink transmissions with lower priority uplink transmissions while maintaining URLLC of the higher priority uplink transmission. A UE receives from a base station information including resources for first and second uplink data, where at least a portion of the resources for the first and second uplink data overlap in time. The first and second uplink data are associated with different priority levels. The UE determines whether to multiplex the uplink data based on a transmission timing difference between a scheduled transmission time and a multiplexed transmission time for the second uplink data on the respective resources. The base station makes a similar determination. If the transmission timing difference fails to meet a delay threshold, multiplexing is performed; otherwise, the lower priority transmission is dropped. Thus, different priority multiplexing may occur in low latency situations, satisfying URLLC.