公开(公告)号：US12177800B2

公开(公告)日：2024-12-24

申请号：US17851410

申请日：2022-06-28

Applicant: QUALCOMM Incorporated

Inventor： Gideon Shlomo Kutz ,  Amit Bar-Or Tillinger ,  Oren Matsrafi ,  Assaf Touboul

IPC: H04W4/00 ,  H04L27/26 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may receive a control signal allocating downlink resources and uplink resources, where the uplink resources puncture the downlink resources and are allocated for transmitting feedback control information. The UE may generate an uplink signal containing the feedback control information and one or more cancelation tones for canceling interference between a downlink signal and the uplink signal in accordance with a timing advance value. Additionally, or alternatively, the UE may generate an uplink signal including the feedback control information, where the uplink signal contains uplink symbols and cyclic extensions appended to the uplink symbols, and the cyclic extensions may be based on the timing advance value. The UE may transmit, while receiving downlink data on the downlink resources, the uplink signal including the feedback control information using the set of uplink resources.

公开(公告)号：US11888670B1

公开(公告)日：2024-01-30

申请号：US17869774

申请日：2022-07-20

Applicant: QUALCOMM Incorporated

Inventor： Elad Meir ,  Gideon Shlomo Kutz ,  Oren Matsrafi

IPC: H04B1/04 ,  H04L27/26

CPC classification number: H04L27/2623 ,  H04B1/0475 ,  H04B2001/0425

Abstract: Methods, systems, and devices for wireless communications are described. Techniques provide for reliable signal processing and amplification of downlink signals. A network entity may apply a digital pre-distortion (DPD) process to a signal for transmission to a user equipment (UE) and may apply a crest factor reduction (CFR) process to the output of the DPD process. The output of the CFR process may be amplified by a power amplifier and transmitted via a downlink transmission to the UE. The CFR process limits the peak power of the signal provided to the power amplifier (e.g., to a configured level), thereby reducing the peak to average power ratio (PAPR) of the signal provided to the power amplifier. The DPD process may compensate for non-linearities of the power amplifier. A training procedure for the DPD process may account for the CFR process applied after the DPD process.

公开(公告)号：US11856528B2

公开(公告)日：2023-12-26

申请号：US17572102

申请日：2022-01-10

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Robert Zokaim ,  Oren Matsrafi ,  Yehezkel Hadid ,  Ghaith Shabsigh ,  Rahul Malik ,  Carl Hardin ,  Damin Cao ,  Michael Lee McCloud

IPC: H04W52/36 ,  H04B1/04 ,  H04B1/62 ,  H04W72/044

CPC classification number: H04W52/36 ,  H04B1/0475 ,  H04B1/62 ,  H04W72/0473 ,  H04B2001/0425

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support adaptation of digital pre-distortion (DPD) coefficients based on a temperature of a user equipment (UE). The UE may determine a power offset value based on a first temperature value associated with a training procedure for the UE, a second temperature value associated with the UE, and a constant value. The training procedure may be associated with multiple sets of coefficients for the UE. The UE may apply the power offset value to a transmission power level for transmission of a message. The UE may determine a set of coefficients of the multiple sets of coefficients based on the training procedure and the power offset value applied to the transmission power level. The UE may apply the coefficients to a DPD engine of the UE to generate the message for transmission at the transmission power level.

公开(公告)号：US20230224825A1

公开(公告)日：2023-07-13

申请号：US17572102

申请日：2022-01-10

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Robert Zokaim ,  Oren Matsrafi ,  Yehezkel Hadid ,  Ghaith Shabsigh ,  Rahul Malik ,  Carl Hardin ,  Damin Cao ,  Michael Lee McCloud

IPC: H04W52/36 ,  H04B1/04 ,  H04B1/62 ,  H04W72/04

CPC classification number: H04W52/36 ,  H04B1/62 ,  H04B1/0475 ,  H04W72/0473 ,  H04B2001/0425

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support adaptation of digital pre-distortion (DPD) coefficients based on a temperature of a user equipment (UE). The UE may determine a power offset value based on a first temperature value associated with a training procedure for the UE, a second temperature value associated with the UE, and a constant value. The training procedure may be associated with multiple sets of coefficients for the UE. The UE may apply the power offset value to a transmission power level for transmission of a message. The UE may determine a set of coefficients of the multiple sets of coefficients based on the training procedure and the power offset value applied to the transmission power level. The UE may apply the coefficients to a DPD engine of the UE to generate the message for transmission at the transmission power level.

公开(公告)号：US11589363B2

公开(公告)日：2023-02-21

申请号：US17154754

申请日：2021-01-21

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Ronen Greenberger ,  Yossi Waldman ,  Oren Matsrafi ,  Ran Berliner

IPC: H04W4/00 ,  H04W72/08 ,  H04W72/04 ,  H04W72/0446

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station and in a first slot, an indication of a signal to noise ratio (SNR) mode, of a plurality of SNR modes, to be used by the UE for one or more downlink communications in one or more slots that occur after the first slot, wherein different SNR modes of the plurality of SNR modes support at least one of different modulation and coding schemes, different ranks, or a combination thereof; and operate using the SNR mode in the one or more slots based at least in part on the indication. Numerous other aspects are provided.