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：US20210336833A1

公开(公告)日：2021-10-28

申请号：US17184804

申请日：2021-02-25

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Assaf Touboul ,  Shay Landis ,  Amit Bar-Or Tillinger

IPC: H04L27/26 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may encode a set of bits to transmit to a receiving device based on a repetition factor. The transmitting device may map, based on the repetition factor, the set of encoded bits to a subset of subcarriers such as adjacent subcarriers of a set of subcarriers. The transmitting device may generate a signal including the set of encoded bits based on the mapping, and transmit the generated signal to the receiving device. The receiving device may receive a modulated signal from the transmitting device, and identify, based on a repetition factor, a subset of subcarriers including adjacent subcarriers of a set of subcarriers associated with the modulated signal. The receiving device may average the subset of subcarriers including the adjacent subcarriers, and demodulate the modulated signal in accordance with the averaged subset of subcarriers including the adjacent subcarriers.

公开(公告)号：US20210288782A1

公开(公告)日：2021-09-16

申请号：US17175857

申请日：2021-02-15

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Assaf Touboul ,  Shay Landis

IPC: H04L5/14 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A receiving device and a transmitting device may utilize index modulation for full-duplex operations. The transmitting device, such as a base station or a user equipment (UE), may define blocks of resource elements (REs) for transmissions. The transmitting device may then transmit a power boosted index modulated signal at a data RE location within a resource allocation and may skip transmitting within the remaining REs of the resource allocation. The transmitting device may indicate the number of REs per RE block to the receiving device (e.g., a UE). The receiving device may use this information to perform energy detection for determining which REs within an RE block include the power boosted index modulated transmission and which REs within the RE block are empty REs. In some cases, the receiving device may use the empty REs for performing noise estimation.

公开(公告)号：US11088754B2

公开(公告)日：2021-08-10

申请号：US16234365

申请日：2018-12-27

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Shmuel Vagner ,  Igor Gutman ,  Gideon Shlomo Kutz ,  Assaf Touboul ,  Ran Berliner ,  Shay Landis ,  Meir Tsadik

IPC: H04B7/08 ,  H04L5/00 ,  H04W36/30 ,  H04W72/12 ,  H04B7/06

Abstract: In order to enable asynchronous, autonomous reception beam switching at a UE while minimizing degradation due to a transient in link performance, a method, apparatus, and computer-readable medium for wireless communication are provided. The apparatus receives CSI-RS on different reception beams in different symbols, wherein one reception beam being a current serving reception beam, and determines whether to switch to a different reception beam based on a SPEFF metric for the different reception beam and/or a severity of a potential link transient qualified in terms of the expected CQI/MCS degradation in the channel. The apparatus may switch from a current serving reception beam to a second reception beam when a first channel quality for the current serving reception beam is within a threshold value of a second channel quality for the second reception beam, the second channel quality being measured using a current configuration.

公开(公告)号：US20210218532A1

公开(公告)日：2021-07-15

申请号：US17146105

申请日：2021-01-11

Applicant: QUALCOMM Incorporated

Inventor： David Yunusov ,  Assaf Touboul ,  Shay Landis

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a configuration indicating a set of resources for a reference signal to track an in-phase and quadrature-phase imbalance of the UE. The set of resources may include a first subset of resources for transmitting the reference signal and a second subset of resources for a mirror image signal that is generated during upconversion of the reference signal. The UE may upconvert the reference signal to a set of subcarriers corresponding to the first subset of resources and transmit the upconverted reference signal on the first subset of resources. The base station may receive the reference signal and the mirror image signal and determine a signal adjustment for communications with the UE based on the received reference signal and the received mirror image signal.

公开(公告)号：US11025383B1

公开(公告)日：2021-06-01

申请号：US16949711

申请日：2020-11-11

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Shay Landis ,  Assaf Touboul ,  Amit Bar-Or Tillinger

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

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine a signal distortion based at least in part on a number of analog-to-digital conversion (ADC) bits used for signal quantization at a user equipment (UE). The base station may remap a tone reservation and data based at least in part on the signal distortion. The base station may transmit, to the UE, a remapped tone reservation and remapped data. Numerous other aspects are provided.

公开(公告)号：US20210119840A1

公开(公告)日：2021-04-22

申请号：US17071592

申请日：2020-10-15

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/233 ,  H04L27/26 ,  H04L1/00 ,  H04B7/06 ,  H04L5/00

Abstract: In one aspect, performing, by a wireless communication device, a non-coherent encoding operation on first data to generate a first transmission, wherein the non-coherent encoding operation encodes data independent of channel state information (CSI); and transmitting, by the wireless communication device, the first transmission, wherein the first transmission is non-coherently encoded. In another aspect, receiving, by a wireless communication device, a first transmission, wherein the first transmission is non-coherently encoded independent of channel state information (CSI); and performing, by the wireless communication device, a non-coherent decoding operation on the first transmission to decode the first transmission. Other aspects and features are also claimed and described.

公开(公告)号：US20210119682A1

公开(公告)日：2021-04-22

申请号：US17073162

申请日：2020-10-16

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Shay Landis ,  Gideon Shlomo Kutz ,  Assaf Touboul ,  Guy Wolf

IPC: H04B7/06 ,  H04B7/0456 ,  H04W76/27 ,  H04W72/04 ,  H04L5/00

Abstract: In one aspect, a method for wireless communication includes transmitting a first message indicating a precoding matrix identifier configured to identify a particular precoding matrix for precoding by another wireless communication device for at least one future transmission; and receiving a second message indicating information about whether the particular precoding matrix was or will be used for the at least one future transmission. In another aspect, a method for wireless communication includes receiving a first message indicating a precoding matrix identifier configured to identify a particular precoding matrix for precoding by the wireless communication device for at least one future transmission; and transmitting a second message indicating information about whether the particular precoding matrix was or will be used for precoding for the at least one future transmission. Other aspects and features are also claimed and described.

公开(公告)号：US10863474B2

公开(公告)日：2020-12-08

申请号：US15694530

申请日：2017-09-01

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Assaf Touboul ,  Junyi Li ,  Udara Fernando

IPC: G06F3/00 ,  H04W64/00 ,  H04B7/0408 ,  H04W4/02 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04W4/50 ,  H04B7/0452 ,  H04L25/03 ,  H04W16/28 ,  H04W36/32 ,  H04B7/026 ,  H04W74/00 ,  H04W36/00 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communication are described. A network server may configure a base station for beamforming communications based on a service type of data used by a user equipment (UE). The network server may determine the service type of the data based on position data of the UE, along with other statistical information related to data usage. The position information may include global position system (GPS) information, gyroscope information, accelerometer information, or information related to the UE's subarray geometry. The base station may receive the position information from the UE and convey it to the network server. The network server may use the position information to generate a network map and to identify the service type of communication.

公开(公告)号：US10715237B1

公开(公告)日：2020-07-14

申请号：US16590090

申请日：2019-10-01

Applicant: QUALCOMM Incorporated

Inventor： Shay Landis ,  Igor Gutman ,  Ran Berliner ,  Gideon Shlomo Kutz ,  Assaf Touboul

IPC: H04B7/06 ,  H04W24/08 ,  H04B17/318 ,  H04L5/00

Abstract: In some aspects, a UE may select a first type of antenna for communication with a base station based at least in part on a beam management procedure that uses an RSRP parameter determined using a downlink reference signal associated with a single antenna port; measure a CSI-RS resource for CSF, associated with multiple antenna ports, using a second type of antenna and after selecting the first type of antenna; compare a first spectral efficiency parameter associated with communicating using the first type of antenna and a second spectral efficiency parameter determined based at least in part on measuring the CSI-RS resource for CSF using the second type of antenna; and select one of the first type of antenna or the second type of antenna for subsequent communication with the base station based at least in part on comparing the first spectral efficiency parameter and the second spectral efficiency parameter.