公开(公告)号：US11616537B1

公开(公告)日：2023-03-28

申请号：US17670117

申请日：2022-02-11

Applicant: QUALCOMM Incorporated

Inventor： Amit Bar-Or Tillinger ,  Gideon Shlomo Kutz ,  Shay Landis ,  Idan Michael Horn

IPC: H04L23/02 ,  H04B7/0408 ,  H04B7/08 ,  H04B7/06 ,  H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. Aspects of the present disclosure describe spatial precoding for inter symbol interference reduction in single carrier. Generally, the described techniques provide for one or more wireless devices (e.g., a user equipment (UE) and a network entity) to determine a weighted sum of several beams, each with a different delay, to form a spatial precoder that increases signal to interference noise ratios while improving signaling quality by diversifying the number of beams carrying subsequent messaging. The one or more wireless devices may determine complex gain values and delay parameters based on reference signals. The one or more wireless devices may utilize the complex gain values and delay parameters such that subsequent transmissions may be received coherently over multiple beams.

公开(公告)号：US20230085759A1

公开(公告)日：2023-03-23

申请号：US17481017

申请日：2021-09-21

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Danlu Zhang ,  Shay Landis ,  Yehonatan Dallal

IPC: H04B7/06 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine to enable orbital angular momentum (OAM) beamforming for communications with a user equipment (UE), for example, based on one or more communications parameters and receiving a message from the UE indicating a capability of the UE to use OAM beamforming. The base station may transmit control signaling to the UE indicating that OAM beamforming is enabled. In some examples, the base station may transmit control signaling indicating an OAM configuration, which may be for a same slot in which the control signaling is transmitted or a subsequent slot. The base station may transmit a downlink transmission to the UE via OAM beamforming. In some examples, the base station may estimate and correct misalignment associated with OAM beamforming. In some examples, the base station may disable OAM beamforming and transmit an indication that OAM beamforming is disabled.

公开(公告)号：US11606183B2

公开(公告)日：2023-03-14

申请号：US17229330

申请日：2021-04-13

Applicant: QUALCOMM Incorporated

Inventor： Shay Landis ,  Idan Michael Horn

IPC: H04L5/00 ,  H04W8/24 ,  H04B1/525 ,  H04W72/04 ,  H04L5/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of capabilities of the UE for self-interference cancellation at one or more center frequencies. The UE may receive an indication of a configuration, based at least in part on the indication of capabilities, associated with one or more subsequent communications. Numerous other aspects are described.

公开(公告)号：US11589355B2

公开(公告)日：2023-02-21

申请号：US17105400

申请日：2020-11-25

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Shay Landis

IPC: H04W72/04 ,  H04W76/10 ,  H04W36/32 ,  H04W72/044

Abstract: A configuration for providing a UE null space report to optimize beam management for multi-UE communication. The apparatus transmits, to the base station, a null space report indicating one or more parameters for at least one null space of the UE based on the multiple antenna elements. The apparatus receives, from the base station, a downlink signal based on the null space report of the UE.

公开(公告)号：US11582079B2

公开(公告)日：2023-02-14

申请号：US17191585

申请日：2021-03-03

Applicant: QUALCOMM Incorporated

Inventor： Yehonatan Dallal ,  Ran Berliner ,  Shay Landis

IPC: H04L27/26 ,  H04W76/19

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for a base station to transmit a feedback configuration to a user equipment (UE) indicating a subcarrier spacing and a length of a cyclic prefix (CP) that the UE is to use to transmit feedback associated with a second frequency band (e.g., a high frequency band) using a first frequency band (e.g., a low frequency band). The UE may monitor the second frequency band for downlink messages transmitted by the base station and transmit a feedback message accordingly using the indicated subcarrier spacing and applying a CP having the indicated length.

公开(公告)号：US11576061B2

公开(公告)日：2023-02-07

申请号：US17069515

申请日：2020-10-13

Applicant: QUALCOMM Incorporated

Inventor： Yehonatan Dallal ,  Ran Berliner ,  Shay Landis

IPC: H04W24/08 ,  H04B17/318 ,  H04B17/336 ,  H04B7/06

Abstract: Aspects relate to beam management in multi-stream communication between a radio access network (RAN) entity and a user equipment (UE). The RAN entity may transmit a plurality of transmit beams from a plurality of transmission and reception points (TRPs) associated with the RAN entity to the UE. For each of the transmit beams, the UE may obtain a beam quality metric on each of a plurality of receive beams of the UE during a measurement period (e.g., in parallel or serially) to generate a respective beam quality metric vector for each of the transmit beams. The UE can then transmit a beam report including the respective beam quality metric vector for each of the transmit beams to the RAN entity. The RAN entity may then select at least two beam pair links, each associated with a respective TRP, for spatial division multiplexing of at least two streams to the UE based on the beam report.

公开(公告)号：US20230032326A1

公开(公告)日：2023-02-02

申请号：US17949382

申请日：2022-09-21

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Assaf Touboul ,  Ran Berliner ,  Shay Landis ,  Lior Uziel

IPC: H04L5/00 ,  H04W72/04 ,  H04B17/364

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine the subcarrier spacing and carrier frequency used by a user equipment (UE) for communicating with the base station. The base station may select a sounding reference signal (SRS) configuration for the UE that is based on the subcarrier spacing and carrier frequency used by the UE. The SRS configuration may define the temporal spacing between repetitions of the SRS. The base station may indicate the SRS configuration to the UE so that the UE transmits repetitions of the SRS according to the SRS configuration. The base station may measure the SRS repetitions from the UE to determine the Doppler frequency for the uplink channel. The base station may use the uplink Doppler frequency to select a demodulation reference signal (DMRS) configuration for the UE.

公开(公告)号：US20230016303A1

公开(公告)日：2023-01-19

申请号：US17374876

申请日：2021-07-13

Applicant: QUALCOMM Incorporated

Inventor： Gideon Shlomo Kutz ,  Shay Landis ,  Idan Michael Horn ,  Amit Bar-Or Tillinger

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/04 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform both a channel estimation and a non-linearity estimation (e.g., a power amplifier (PA) model estimation) on a demodulation reference signal (DMRS) transmitted by a base station. For example, the DMRS may include two portions that correspond to two peak-to-average power ratio (PAPR) values. Low PAPR values may enable the UE to perform the channel estimation, and high PAPR values may enable the UE to perform the PA non-linearity estimation. Accordingly, a first portion of the DMRS may correspond to a lower PAPR value, and the second portion of the DMRS may correspond to a higher PAPR value. In some examples, the base station may signal different parameters for each portion of the DMRS to the UE, or the UE may use fixed values to receive each portion of the DMRS.

公开(公告)号：US20230007582A1

公开(公告)日：2023-01-05

申请号：US17366982

申请日：2021-07-02

Applicant: QUALCOMM Incorporated

Inventor： David Yunusov ,  Peer Berger ,  Lior Uziel ,  Shay Landis

IPC: H04W52/02 ,  H04W52/52 ,  H04W4/40

Abstract: Methods, systems, and devices for wireless communications are described. In a wireless communications system, a first user equipment (UE) may receive a message from a second UE via a set of one or more antennas, where a first symbol period and a second symbol period of the message include a duplicated signal, and the first symbol period is immediately prior to the second symbol period in a time domain. The first UE may calculate a correlation between first data included in the first symbol period and second data included in the second symbol period of the message for each antenna of the set of one or more antennas. In some cases, the first UE may power down at least one radio frequency chain based on the result of the calculated correlation satisfying a threshold value.

公开(公告)号：US11540178B2

公开(公告)日：2022-12-27

申请号：US16705067

申请日：2019-12-05

Applicant: QUALCOMM Incorporated

Inventor： Peer Berger ,  Shay Landis ,  Moshe Ben-Ari

IPC: H04W28/26 ,  H04W4/40 ,  H04L5/00 ,  H04L5/10 ,  H04W52/52 ,  H04W72/04 ,  H04W92/18

Abstract: A transmitting device maps complex valued symbols in sequence to physical resource blocks for a sidelink transmission. The transmitting device reserves a first symbol of a subframe, where resource elements in the first symbol of the subframe are not considered in mapping the complex valued symbols to the physical resource blocks for the sidelink transmission. The transmitting device transmits the sidelink transmission after mapping the complex valued symbols to the physical resource blocks. A receiving device receives the sidelink transmission and decodes the sidelink transmission to determine complex valued symbols that are mapped in sequence to physical resource blocks of the sidelink transmission, where the complex valued symbols are not mapped to resource elements in a first symbol of a subframe.