公开(公告)号：US20220070843A1

公开(公告)日：2022-03-03

申请号：US17009402

申请日：2020-09-01

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Guy Wolf ,  Assaf Touboul ,  Shay Landis ,  Sharon Levy ,  Noam Zach ,  David Yunusov ,  Peer Berger

IPC: H04W72/04 ,  H04W72/02 ,  G06T17/00 ,  G01S5/06 ,  G01S11/04

Abstract: The present disclosure involves determining base station (BS) beams for communicating between a UE and the BS. The BS may use sensor data or beam management reporting history to assist with determining one or more appropriate beams. The sensor data may include camera images, radar data, or lidar data, and be used to model the cell environment served by the BS. The BS may obtain reporting data from multiple UEs over time indicating the quality of beams received by the UEs at various locations in the cell environment and model the cell environment based on the reporting data. The BS may associate beams with possible UE locations within the cell environment and use the associations to determine beams for communicating with a UE after determining the UE's location.

公开(公告)号：US11171817B1

公开(公告)日：2021-11-09

申请号：US16849944

申请日：2020-04-15

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L27/26 ,  H04B7/06 ,  H04B7/0452

Abstract: Methods related to wireless communication systems and reducing peak-to-average-power ratio (PAPR) in MU-MIMO transmissions are provided. A base station (BS) generates a plurality of communication signals including data for a plurality of user equipment (UE) devices in a plurality of serving beam subspaces. The BS may also generate a peak-to-average-power ratio (PAPR) reduction signal for one or more of the plurality of communication signals. A first portion of the PAPR reduction signal is in a first serving beam subspace of the plurality of serving beam subspaces based on a first error vector magnitude (EVM) associated with a first UE of the plurality of UEs. A second portion of the PAPR reduction signal is in a non-serving beam subspace. The BS may also transmit, to the plurality of UEs, the plurality of communication signals and the PAPR reduction signal. Other features are also claimed and described.

公开(公告)号：US20210344399A1

公开(公告)日：2021-11-04

申请号：US16862517

申请日：2020-04-29

Applicant: QUALCOMM INCORPORATED

Inventor： Sharon Levy ,  Guy Wolf

IPC: H04B7/06

Abstract: Methods related to wireless communication systems and performing link adaption for multiple user-multiple-input multiple-output (MU-MIMO) communications using multiple expected channel quality indicators are presented. A base station (BS) transmits, to a first user equipment (UE) of a plurality of UEs, a channel state report configuration indicating a set of one or more measurement resources and at least one of precoding information or rank indications associated with the set of one or more measurement resources. The BS receives, from the first UE, a channel state report including a plurality of expected channel quality indicators (CQIs) over a time period based on the set of one or more measurement resources and the at least one of the precoding information or rank indications. The BS uses the channel state report to determine a link adaptation for the first UE. Other features are also claimed and described.

公开(公告)号：US11159219B2

公开(公告)日：2021-10-26

申请号：US17084550

申请日：2020-10-29

Applicant: QUALCOMM Incorporated

Inventor： Parisa Cheraghi ,  Md Jahidur Rahman ,  Sharon Levy ,  Alexei Yurievitch Gorokhov

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0417

Abstract: Aspects of the disclosure relate to a wireless user equipment (UE) determining a wideband channel quality indicator (CQI) in a wireless communication network. For each of a plurality of CQI hypotheses, a UE divides a bandwidth into a plurality of frequency segments and determines an average spectral efficiency (SPEF) for each of those segments. Further, for each of the plurality of CQI hypotheses, the UE determines the minimum of the average SPEFs. The UE selects the CQI hypothesis corresponding to the maximum from among these determined minimum average SPEFs, and transmits this selected CQI as a wideband CQI. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20220386151A1

公开(公告)日：2022-12-01

申请号：US17336025

申请日：2021-06-01

Applicant: QUALCOMM Incorporated

Inventor： Ory Eger ,  Assaf Touboul ,  Idan Michael Horn ,  Guy Wolf ,  Sharon Levy ,  Noam Zach ,  Ori Ben Shahar ,  Shay Landis

IPC: H04W24/04 ,  H04W76/10 ,  H04W8/24 ,  G06N3/08

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a transmitting device (e.g., a base station) may utilize machine learning to modify a signal as conditions of a channel change to reduce a peak to average power (PAPR). For example, a base station may select a type of machine learning. The base station may receive one or more feedback messages related to a condition of a channel and modify a downlink signal based on the selected type of machine learning and the one or more feedback messages. In some cases, the base station may transmit the modified downlink signal to a user equipment (UE) along with information indicating the modified downlink signal and the UE may reconstruct the downlink signal based on the information.

公开(公告)号：US11476998B2

公开(公告)日：2022-10-18

申请号：US16937833

申请日：2020-07-24

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Shay Landis ,  Gideon Shlomo Kutz ,  Ran Berliner ,  Alexandros Manolakos ,  Ariel Yaakov Sagi ,  Guy Wolf ,  Sharon Levy

IPC: H04L5/00 ,  H04L1/00 ,  H04W28/06

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently reporting channel state feedback for a set of subbands. As an example, a user equipment (UE) may receive a set of reference signals on the set of subbands and determine a respective channel quality indicator (CQI) index for each of the set of subbands based on the reference signals. The UE may then transmit indications of CQI indices for different subbands of the set using variable length indications, such as indications that include different numbers of bits. Since, in some examples, a small length or number of bits may be allocated for reporting CQI indices with a high probability of being reported, overhead in a wireless communications system may be reduced.

公开(公告)号：US11444733B2

公开(公告)日：2022-09-13

申请号：US16942223

申请日：2020-07-29

Applicant: QUALCOMM Incorporated

Inventor： Sharon Levy ,  Assaf Touboul ,  Guy Wolf ,  Igor Gutman

IPC: H04W4/00 ,  H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04W72/08

Abstract: Methods, systems, and devices for wireless communications are described. Some systems may support digital post-distortion (DPoD) processing at a base station. In some such systems, a user equipment (UE) may process a data message for transmission, where a resulting signal associated with the data message includes non-linear characteristics that are handled by DPoD on the receiver-side. The non-linear characteristics may cause the signal to leak into out-of-band (OOB) resources, potentially resulting in interference. In some examples, the UE may transmit the data message to the base station in a multi-user system. To support mitigation of non-linear interference on signaling by other UEs, the UE may additionally transmit pilot signals in OOB resources (e.g., in addition to in-band resources) where the non-linearity may be expected to negatively affect other communications. The base station may use the OOB pilot signals to perform channel estimation and interference mitigation.

公开(公告)号：US11431538B2

公开(公告)日：2022-08-30

申请号：US17146696

申请日：2021-01-12

Applicant: QUALCOMM Incorporated

Inventor： Ory Eger ,  Assaf Touboul ,  Noam Zach ,  Sharon Levy ,  Guy Wolf ,  Shay Landis ,  Ran Berliner ,  Gideon Kutz

IPC: H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. In one example, a receiving device (e.g., a UE) may transmit, to a transmitting device (e.g., a base station), a capability indicator indicating a capability of the receiving device to perform peak reconstruction using soft metrics (e.g., expected value, covariance) on symbol decisions. The receiving device may receive, from the transmitting device and based on the capability indicator, control signaling indicating a clipping level applied to generate a signal and a subset of peaks clipped from the signal. The receiving device may receive the signal generated in accordance with the control signaling from the transmitting device and may decode a reconstructed signal based on performing the peak reconstruction on the signal using the soft metrics on symbol decisions, the clipping level, and the subset of the peaks clipped from the signal.

公开(公告)号：US20220272527A1

公开(公告)日：2022-08-25

申请号：US17180596

申请日：2021-02-19

Applicant: QUALCOMM Incorporated

Inventor： Noam Zach ,  Guy Wolf ,  Sharon Levy ,  Ory Eger ,  Ori Ben Shahar ,  Lior Uziel ,  Assaf Touboul

IPC: H04W12/037 ,  H04W12/041 ,  H04W12/63 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may communicate, with a second wireless device, a first set of messages of a first message type that are acknowledged according to an acknowledgement procedure. The first wireless device, the second wireless device, or both may select a first subset of messages of the first plurality of messages and a first subset of bits from each message of the first subset of messages based on the first set of messages being acknowledged and according to a sampling configuration common to both the first wireless device and the second wireless device. The first wireless device, the second wireless device, or both may generate a key using bit values of the first subset of bits from each message of the first subset of messages, encoding a message using the key, and communicate the encoded message.

公开(公告)号：US11336399B2

公开(公告)日：2022-05-17

申请号：US16694688

申请日：2019-11-25

Applicant: QUALCOMM Incorporated

Inventor： Sharon Levy ,  Ran Berliner ,  Ory Eger ,  Alexandros Manolakos ,  Gabi Sarkis ,  Gideon Shlomo Kutz

IPC: H04L1/18 ,  H04W76/11 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter device may transmit a hybrid automatic repeat request (HARQ) communication using a first code block order for code blocks of the HARQ communication; detect a trigger to retransmit the HARQ communication based at least in part on transmitting the HARQ communication; reorder the code blocks of the HARQ communication based at least in part on detecting the trigger to retransmit the HARQ communication; and retransmit the HARQ communication using a second code block order based at least in part on reordering the code blocks of the HARQ communication. Numerous other aspects are provided.