公开(公告)号：US20220070823A1

公开(公告)日：2022-03-03

申请号：US17375944

申请日：2021-07-14

Applicant: QUALCOMM Incorporated

Inventor： Jun Ma ,  Xiaoxia Zhang ,  Qiang Wu ,  Tao Luo ,  Iyab Issam Sakhnini ,  Mehmet Izzet Gurelli ,  Ahmed Abdelaziz Ibrahim Zewail ,  Jing Sun ,  Wooseok Nam ,  Anantha Krishna Karthik Nagarajan ,  Peter Gaal ,  Zhifei Fan ,  Juan Montojo ,  Sony Akkarakaran ,  Arumugam Chendamarai Kannan

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

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a first tracking reference signal configuration and a second tracking reference signal configuration. The first tracking reference signal configuration may include a first set of parameters and the second tracking reference signal configuration may include a second set of parameters. The UE, the base station, or both may identify an indicator for selection from among the first tracking reference signal configuration and the second tracking reference signal configuration. The UE may receive, from the base station and based on the identified indicator for selection, a tracking reference signal in accordance with the first tracking reference signal configuration or the second tracking reference signal configuration.

公开(公告)号：US11252706B2

公开(公告)日：2022-02-15

申请号：US16738739

申请日：2020-01-09

Applicant: QUALCOMM Incorporated

Inventor： Zhifei Fan ,  Tao Luo ,  Xiaoxia Zhang ,  Arumugam Chendamarai Kannan ,  Jing Sun ,  Yan Zhou

IPC: H04W72/04 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify, based at least in part on monitoring a set of channels for signals during a monitoring window, a subset of channels in which signals were detected during the monitoring window. The UE may select, based at least in part on the subset of channels, a format for a first sub-codebook and a second sub-codebook, the second sub-codebook indicating a feedback state for corresponding data transmissions received on the channels within the subset of channels. The UE may transmit the first uplink control message using a first sub-codebook, the first uplink control message identifying the format for the second sub-codebook and identifying the channels within the subset of channels. The UE may transmit a second uplink control message using the second sub-codebook according to the selected format.

公开(公告)号：US11251914B2

公开(公告)日：2022-02-15

申请号：US16860984

申请日：2020-04-28

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Srinivas Yerramalli ,  Zhifei Fan ,  Tao Luo ,  Jing Sun

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described to enable a user equipment (UE) or a base station to transmit and receive single carrier (SC) waveforms (e.g., corresponding to uplink or downlink transmissions) using an SC transmission configuration. In some cases, a UE and a base station may employ an SC configuration to identify resource elements (REs) for uplink or downlink SC signals. Additionally or alternatively, the UE and the base station may employ an SC configuration with a different cyclic prefix (CP) length in order to change a base amount of REs that may be allocated for an SC transmission, where the different CP length may be either static or dynamic. The base station may transmit an indication of an SC configuration to the UE, and the UE and the base station may process corresponding SC downlink or uplink communications according to the indicated SC configuration.

公开(公告)号：US11229061B2

公开(公告)日：2022-01-18

申请号：US16880607

申请日：2020-05-21

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Sungwoo Park ,  Xiaoxia Zhang ,  Tao Luo ,  Kaushik Chakraborty ,  Olufunmilola Omolade Awoniyi-Oteri ,  Jing Sun ,  Mostafa Khoshnevisan ,  Sony Akkarakaran ,  Zhifei Fan

IPC: H04W16/28 ,  H04W74/08 ,  H04W72/04 ,  H04W52/30

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a base station or a user equipment, may identify an energy detection threshold for a sensing beam associated with a channel access procedure, such as a listen-before-talk (LBT) procedure. The wireless device may also identify a set of transmit power parameters for one or more transmit beams. The wireless device may determine a degree of overlap between a beam shape of one or more transmit beams and a beam shape (e.g., a coverage area) of the sensing beam. The wireless device may adjust the set of transmit power parameters, the energy detection threshold, or a combination thereof based on the degree of overlap. The wireless device may perform the channel access procedure based on the determining, the adjusting, or both.

公开(公告)号：US20210409180A1

公开(公告)日：2021-12-30

申请号：US17469747

申请日：2021-09-08

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Srinivas Yerramalli ,  Wooseok Nam ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Kaushik Chakraborty ,  Olufunmilola Omolade Awoniyi-Oteri ,  Sony Akkarakaran ,  Mostafa Khoshnevisan ,  Zhifei Fan

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

Abstract: Methods, systems, and devices for time domain single carrier (SC) waveform communications are described. A user equipment (UE) may generate an SC waveform by resampling (e.g., up-sampling) mapped information bits prior to insertion of a cyclic prefix (CP) or guard interval (GI). Performing resampling prior to CP/GI insertion allows for resource allocation flexibility and a base station may allocate resources for the SC waveform in accordance with this flexibility. For example, a base station may not be limited or restricted to a certain number of resources for SC waveform communications and may therefore determine a resource allocation for the UE based on the capability of the UE to perform resampling prior to CP/GI insertion. The resampling may be performed according to a set of parameters including a resampling ratio, which may be indicated to the UE via control signaling (e.g., from the base station).

公开(公告)号：US11202308B2

公开(公告)日：2021-12-14

申请号：US16392339

申请日：2019-04-23

Applicant: QUALCOMM incorporated

Inventor： Kiran Venugopal ,  Makesh Pravin John Wilson ,  Tianyang Bai ,  Tao Luo ,  Xiaoxia Zhang ,  Zhifei Fan

IPC: H04W72/12 ,  H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control information indicating a resource allocation pattern for a downlink transmission that is configured for transmission using a plurality of beams and a plurality of mini-slots, where a duration of a mini-slot is less than a duration of a slot. The UE may identify a start time of a first mini-slot of the plurality of mini-slots and a length of the first mini-slot based on the resource allocation pattern, and receive the downlink transmission based on the start time of the first mini-slot and the length of the first mini-slot.

公开(公告)号：US20210359811A1

公开(公告)日：2021-11-18

申请号：US17314812

申请日：2021-05-07

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun ,  Zhifei Fan

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

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a method of wireless communication includes receiving, at a user equipment (UE) from a network entity or a second UE, multiple demodulation reference signals (DMRSs) including a first set of DMRSs allocated to a first DMRS symbol and a first subset of subcarriers and a second set of DMRSs allocated to a second DMRS symbol and a second subset of subcarriers. The method also includes receiving, from the network entity or the second UE, a phase tracking reference signal (PTRS) associated with the multiple DMRSs. The method further includes performing channel estimation based on the multiple DMRSs and a phase tracking process based on the multiple DMRSs and the PTRS. Other aspects and features are also claimed and described.

公开(公告)号：US20210352698A1

公开(公告)日：2021-11-11

申请号：US17244680

申请日：2021-04-29

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Zhifei Fan ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo

IPC: H04W72/12 ,  H04L5/00 ,  H04L12/24

Abstract: Methods, systems, and devices for wireless communications are described. In a first example, the user equipment (UE) may receive sidelink control information scheduling resources for a sidelink data transmission spanning a set of tones and indicating a demodulation reference signal (DMRS) pattern. The UE may identify that each tone of the set of tones is configured to carry a DMRS for a symbol of the DMRS pattern and may receive the sidelink data transmission based on the symbol of the DMRS pattern carrying the DMRS for each tone. In a second example, the UE may receive control signaling indicating a configuration for a non-overlapping relationship between a first resource for receiving a DMRS and a second resource for receiving a phase tracking reference signal. The UE may receive the DMRS over the first resource and the phase tracking reference signal over the second resource based on the non-overlapping relationship.

公开(公告)号：US20210352659A1

公开(公告)日：2021-11-11

申请号：US17384509

申请日：2021-07-23

Applicant: Qualcomm Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Xiaoxia Zhang ,  Zhifei Fan ,  Juan Montojo

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04L1/00

Abstract: A method of wireless communication may include transmitting an uplink slot with a first control region, a second control region, and (e.g., optionally) a data region. Each region may include time resources and frequency resources. Transmitting the uplink slot may include transmitting the first control region in an earlier part of the uplink slot and transmitting the second control region (e.g., and the data region) in a later part of the uplink slot. The first control region may include time-critical control information and the second control region may include non-time-critical control information. A receiver receiving the uplink slot may receive the first control region before receiving the data region and the second control region.

公开(公告)号：US20210258900A1

公开(公告)日：2021-08-19

申请号：US17248991

申请日：2021-02-16

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo PARK ,  Wooseok Nam ,  Tao Luo ,  Jing Sun ,  Xiaoxia Zhang ,  Zhifei Fan ,  Arumugam Chendamarai Kannan ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04W56/00 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may transmit a first set of synchronization signal block (SSB) burst sets with a first set of SSB parameters; and transmit a second set of SSB burst sets with a second set of SSB parameters, wherein the first set of SSB burst sets and the second set of SSB burst sets are transmitted in a common carrier. In some aspects, a user equipment (UE) may receive at least one SSB of the first set of SSB burst sets or the second set of SSB burst sets. Numerous other aspects are provided.