公开(公告)号：US20210377813A1

公开(公告)日：2021-12-02

申请号：US16889507

申请日：2020-06-01

Applicant: QUALCOMM Incorporated

Inventor： Shay Landis ,  Amit Bar-Or Tillinger ,  Gideon Shlomo Kutz ,  Ory Eger ,  Assaf Touboul

IPC: H04W28/26 ,  H04W72/04 ,  H04W24/10 ,  H04L5/00 ,  H04L27/26 ,  H04W72/08

Abstract: Methods, systems, and devices for wireless communications are described. Generally, to improve throughput via more intentional tone reservation, a receiving device (e.g., a user equipment (UE)), may identify one or more tones that have poor signal quality. The receiving device may transmit an indication of the one or more tones having poor signal quality to a transmitting device. The transmitting device may reserve one or more of the identified tones for use in a tone reservation scheme, such as to carry peak-to-average power ratio (PAPR) reduction signals, and may transmit data signals over tones that have higher signal quality.

公开(公告)号：US20210376890A1

公开(公告)日：2021-12-02

申请号：US16888566

申请日：2020-05-29

Applicant: QUALCOMM Incorporated

Inventor： Sharon Levy ,  Guy Wolf ,  Igor Gutman ,  Assaf Touboul ,  Ory Eger ,  Noam Zach

IPC: H04B7/0456 ,  H04L5/00

Abstract: Techniques for wireless communications are described. A communication device may support processing digital post distortion using additional references symbols. For example, the communication device may precode a signal including at least two reference symbols for a single-layer transmission using at least two antenna ports. At least one reference symbol of the at least two reference symbols is associated with at least one data symbol of a data stream. The communication device may estimate, based on the at least two reference symbols, a nonlinearity model of at least two power amplifiers associated with the single-layer transmission, and determine an estimate of a nonlinearity factor of the precoded signal based on the estimated nonlinearity model. As a result, the communication device may eliminate or reduce the nonlinear factor of the precoded signal based on the estimated nonlinearity model of the at least two power amplifiers and the estimated channel impulse response.