公开(公告)号：US11706071B2

公开(公告)日：2023-07-18

申请号：US17319014

申请日：2021-05-12

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Krishna Kiran Mukkavilli ,  Gokul Sridharan ,  June Namgoong

IPC: H04L27/26 ,  H04B17/336 ,  H04W24/10

CPC classification number: H04L27/2614 ,  H04B17/336 ,  H04W24/10

Abstract: Aspects presented herein may improve the efficiency and performance of the tone reservation PAPR reduction technique by allocating peak reduction tone based at least in part on a channel condition, such as based on the signal to noise ratio of the channel. In some aspects, a transmitting device measures a signal to noise ratio for a plurality of tones within a frequency resource. The transmitting device selects a location of one or more reserved tones (e.g., peak reduction tones) among one or more tones based at least in part on an SNR for one or more tones. The transmitting device transmits data to a receiving device in a subset of the plurality of tones that does not include the one or more peak reduction tones. Other aspects and features are also disclosed.

公开(公告)号：US11329853B2

公开(公告)日：2022-05-10

申请号：US17306762

申请日：2021-05-03

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  Hung Dinh Ly ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Peter Gaal ,  Taesang Yoo ,  Shimman Arvind Patel

IPC: H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a resource allocation indicating a plurality of transmission tones comprising a subset of data tones of a plurality of data tones and a subset of peak reduction tones (PRTs) of a plurality of PRTs, wherein the resource allocation indicates locations for the plurality of data tones and locations for the plurality of PRTs within a particular bandwidth, wherein the locations for the plurality of PRTs are arranged relative to the locations for the plurality of data tones according to a PRT subsequence of a universal PRT sequence, and wherein the PRT subsequence corresponds to a sub-band of the particular bandwidth; and transmit a data transmission using a waveform based at least in part on the resource allocation. Numerous other aspects are provided.

公开(公告)号：US20220039027A1

公开(公告)日：2022-02-03

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

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.

公开(公告)号：US20210344543A1

公开(公告)日：2021-11-04

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 Sridharan ,  Shimman Arvind Patel

IPC: H04L27/26 ,  H04W72/04

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).