公开(公告)号：US20240381133A1

公开(公告)日：2024-11-14

申请号：US18313890

申请日：2023-05-08

Applicant: QUALCOMM Incorporated

Inventor： Aviv Regev ,  Yaniv Eistein ,  Peer Berger ,  Ronen Shaked ,  Shay Landis

IPC: H04W24/08

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support signaling of network entities' phase noise inter-carrier interference (ICI) order for reducing user equipment (UE) phase noise cancelation complexity. In a first aspect, a method of wireless communication includes obtaining a power spectral density (PSD) measurement of a phase noise mask of a network entity prior to deployment in the field. The network entity, after deployment, measures an integrated residual PSD measurement per candidate phase noise bandwidth size and transmits these integrated residual PSD measurements to a UE. The UE may then use the integrated residual PSD measurements to estimate phase noise for cancelation from network entity transmissions. Other aspects and features are also claimed and described.

公开(公告)号：US12126466B2

公开(公告)日：2024-10-22

申请号：US17690315

申请日：2022-03-09

Applicant: QUALCOMM Incorporated

Inventor： Ronen Shaked ,  Aviv Regev

IPC: H04L25/02 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04L25/0228 ,  H04B7/0626 ,  H04L5/0048

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may monitor for a demodulation reference signal (DMRS) according to a default precoder, where the DMRS is associated with channel state feedback (CSF) information. The UE may perform a channel estimation based on the DMRS, and transmit an uplink message indicating one or more candidate precoders, where the one or more candidate precoders are selected based on the channel estimation. The UE may receive a downlink message indicating a precoder of the one or more candidate precoders based on transmitting the uplink message. The UE may then communicate with a network entity in accordance with the indicated precoder based on receiving the downlink message.

公开(公告)号：US12028119B1

公开(公告)日：2024-07-02

申请号：US18065388

申请日：2022-12-13

Applicant: QUALCOMM Incorporated

Inventor： Aviv Regev ,  Ronen Shaked

IPC: H04B17/11 ,  H04L27/00 ,  H04W72/51

CPC classification number: H04B17/11 ,  H04W72/51 ,  H04L2027/0016

Abstract: An apparatus for wireless communication includes a memory and a processor coupled to the memory. The processor is configured to: receive one or more signals for determining frequency dependent in-phase quadrature imbalance (FDIQI) estimates; generate one or more FDIQI estimates based on the one or more signals; and transmit the one or more FDIQI estimates to a network node.

公开(公告)号：US20240146579A1

公开(公告)日：2024-05-02

申请号：US18049738

申请日：2022-10-26

Applicant: QUALCOMM Incorporated

Inventor： Aviv Regev ,  Ronen Shaked ,  Yaniv Eistein

IPC: H04L25/02 ,  H04B7/0456 ,  H04W72/04

CPC classification number: H04L25/0202 ,  H04B7/0456 ,  H04W72/042

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink message which may include an indication of a precoder applied to one or more downlink signals. The UE may receive the one or more downlink signals using a demodulation reference signal (DMRS) and the precoder, where the one or more downlink signals may be mismatched in gain and phase. The UE may perform an iterative channel estimation procedure to estimate the downlink channel. The UE may then perform a gain and phase mismatch equalization procedure to equalize an estimated gain and phase mismatch of the one or more downlink signals based on the estimated downlink channel and the precoder. The UE may then receive one or more equalized downlink signals in accordance with the gain and phase mismatch equalization procedure.

公开(公告)号：US11968062B1

公开(公告)日：2024-04-23

申请号：US18049738

申请日：2022-10-26

Applicant: QUALCOMM Incorporated

Inventor： Aviv Regev ,  Ronen Shaked ,  Yaniv Eistein

IPC: H04L25/02 ,  H04B7/0456 ,  H04W72/23 ,  H04L25/03

CPC classification number: H04L25/0202 ,  H04B7/0456 ,  H04W72/23 ,  H04L25/03343

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink message which may include an indication of a precoder applied to one or more downlink signals. The UE may receive the one or more downlink signals using a demodulation reference signal (DMRS) and the precoder, where the one or more downlink signals may be mismatched in gain and phase. The UE may perform an iterative channel estimation procedure to estimate the downlink channel. The UE may then perform a gain and phase mismatch equalization procedure to equalize an estimated gain and phase mismatch of the one or more downlink signals based on the estimated downlink channel and the precoder. The UE may then receive one or more equalized downlink signals in accordance with the gain and phase mismatch equalization procedure.

公开(公告)号：US11757583B2

公开(公告)日：2023-09-12

申请号：US17330116

申请日：2021-05-25

Applicant: QUALCOMM Incorporated

Inventor： Daniel Paz ,  Michael Levitsky ,  Ronen Shaked ,  Yaniv Eistein

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/02 ,  H04W72/0453 ,  H04W8/24

CPC classification number: H04L5/0039 ,  H04L1/0003 ,  H04L5/0051 ,  H04W8/24 ,  H04W72/02 ,  H04W72/0453

Abstract: The apparatus may be a UE configured to transmit, to a base station, an indication of a UE capability associated with a contiguous FD pilot; receive, from the base station, an indication of an allocation of one or more frequency sub-bands for a reception of one or more contiguous FD pilots; and receive, from the base station, the one or more contiguous FD pilots via the one or more frequency sub-bands. The apparatus may be a configured to receive, from a UE, an indication of a UE capability associated with a contiguous FD pilot; select one or more frequency sub-bands for a transmission of a contiguous FD pilot; transmit, to the UE, an indication of an allocation of the one or more frequency sub-bands for the transmission of the contiguous FD pilot; and transmit, to the UE, the contiguous FD pilot via the one or more frequency sub-bands.

公开(公告)号：US20230124141A1

公开(公告)日：2023-04-20

申请号：US17506616

申请日：2021-10-20

Applicant: QUALCOMM Incorporated

Inventor： Yaniv Eistein ,  Ronen Shaked ,  Daniel Paz ,  Michael Levitsky

IPC: H04L27/34 ,  H04L27/26 ,  H04L27/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, a request for a data transmission that includes multiple subsets of data each associated with a different constellation granularity. In response to the request, the base station may encode the data transmission using multiple different constellation granularities and may transit the encoded data transmission to the UE. For example, the UE may receive the data transmission including a first subset of data that was encoded by the base station using a first constellation granularity and a second subset of data that was encoded by the base station using a second constellation granularity. The UE may then iteratively estimate phase-noises associated with respective subsets of data and perform phase-noise correction operations on the entire data transmission based on the estimated phase-noises.

公开(公告)号：US11539557B1

公开(公告)日：2022-12-27

申请号：US17644631

申请日：2021-12-16

Applicant: QUALCOMM Incorporated

Inventor： Daniel Paz ,  Amit Bar-Or Tillinger ,  Michael Levitsky ,  Assaf Touboul ,  Shay Landis ,  Ronen Shaked

IPC: H04L25/49 ,  H04L1/00 ,  H04L1/18

Abstract: A first wireless device may receive, from a second wireless device, a transmission associated with an MLC scheme. The MLC scheme may include a plurality of bits with at least one first bit corresponding to a first level of the plurality of bits and at least one second bit corresponding to a second level of the plurality of bits. The at least one first bit may be coded with a first level of complexity, but the at least one second bit may be coded with either the first level of complexity or a second level of complexity, where the first level of complexity may be a higher level of complexity than the second level of complexity. The first wireless device may decode the at least one first bit and the at least one second bit using a decoder having a corresponding level of complexity.

公开(公告)号：US20220368484A1

公开(公告)日：2022-11-17

申请号：US17319536

申请日：2021-05-13

Applicant: QUALCOMM Incorporated

Inventor： Gideon Schlomo Kutz ,  Assaf Touboul ,  Ronen Shaked ,  Elad Meir ,  Amit Bar-Or Tillinger ,  Yaniv Eistein ,  Michael Levitsky ,  Shay Landis ,  Tal Oved

IPC: H04L5/00 ,  H04W72/04 ,  H04L25/03 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may select a scrambling sequence to use per symbol to reduce variance in a non-linearity parameter for a power amplifier (PA) output between a data symbol and a pilot symbol based on a PA model for at least one pilot symbol or one or more parameters of the model. The receiving device may indicate a capability to blindly estimate the scrambling sequence the transmitting device selected to the transmitting device. If the transmitting device does not receive the capability message from the receiving device or if the capability message indicates the receiving device is not capable of blind estimation, the transmitting device may indicate the selected scrambling sequence to the receiving device. Otherwise, the transmitting device may not indicate the selected scrambling sequence to the receiving device, and the receiving device may blindly estimate the scrambling sequence.

公开(公告)号：US11477064B2

公开(公告)日：2022-10-18

申请号：US17016793

申请日：2020-09-10

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Michael Levitsky ,  Assaf Touboul ,  Gideon Shlomo Kutz ,  Amit Bar-Or Tillinger ,  Shay Landis ,  Guy Wolf ,  Ronen Shaked

IPC: H04L27/233 ,  H04J13/18 ,  H04L5/00 ,  H04L5/10 ,  H04L27/26

Abstract: Techniques for wireless communications are described. A demodulation reference signal generated using user information and a noncoherent modulation technique may be communicated between wireless devices. A data sequence may be extracted from the demodulation reference signal based on demodulating the demodulation reference signal using the noncoherent modulation technique and decoding the demodulation reference signal. The data sequence may be used to reconstruct a version of the demodulation reference signal used to descramble a received version of the demodulation reference signal. The descrambled demodulation reference signal may be used to estimate a data channel between a transmitting device and a receiving device.