公开(公告)号：US11038646B2

公开(公告)日：2021-06-15

申请号：US16014940

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Jing Sun ,  Heechoon Lee ,  Makesh Pravin John Wilson

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0413

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may determine a shared demodulation reference signal (DMRS) configuration for a plurality of resource blocks of a channel, wherein a frequency domain associated with the plurality of resource blocks overlaps for a control resource of the channel and a data resource of the channel, and wherein the plurality of resource blocks are associated with a shared precoding scheme. The device may transmit a DMRS based at least in part on determining the shared DMRS configuration to enable a receiver to receive the plurality of resource blocks of the channel. Numerous other aspects are provided.

公开(公告)号：US20210176669A1

公开(公告)日：2021-06-10

申请号：US17111222

申请日：2020-12-03

Applicant: QUALCOMM INCORPORATED

Inventor： Seyed Ali Akbar Fakoorian ,  Jing Sun ,  Yisheng Xue ,  Xiaxia Zhang

IPC: H04W28/26 ,  H04W72/02 ,  H04W72/04 ,  H04L5/00 ,  H04W28/02 ,  H04W72/12

Abstract: Wireless communications systems and methods related to a sidelink user equipment (UE) reserving resources for multiple sidelinks are provided. A first wireless communication device communicates, with a second wireless communication device, a reservation indicating a plurality of reserved resources for a plurality of sidelink communications. The first wireless communication device communicates, with a third wireless communication device, a first sidelink communication of the plurality of sidelink communications using a first resource of the plurality of reserved resources.

公开(公告)号：US11032822B2

公开(公告)日：2021-06-08

申请号：US15927895

申请日：2018-03-21

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Makesh Pravin John Wilson ,  Xiao Feng Wang

IPC: H04W72/04 ,  H04W24/04 ,  H04B7/06 ,  H04B7/08

Abstract: A base station may maintain multiple beam pair links, with one being actively used for communication. The active beam pair may become blocked. Accordingly, it may be necessary to switch to another beam pair. The apparatus may be an apparatus for wireless communication. The apparatus for wireless communication may include a memory and at least one processor coupled to the memory. The at least one processor is configured to determine a set of active beam pairs including at least a first beam pair and a second beam pair and select the first beam pair. The at least one processor is also configured to predict that the first beam pair is blocked, the prediction based on an expiration of a timer and sweep through the set of active beam pairs based on predicting that the first beam pair is blocked.

公开(公告)号：US11032818B2

公开(公告)日：2021-06-08

申请号：US16658762

申请日：2019-10-21

Applicant: QUALCOMM INCORPORATED

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad

IPC: H04W72/04 ,  H04W74/08 ,  H04W16/14

Abstract: Wireless communications systems and methods related to channel reservations and channel monitoring in a channel shared by multiple network operating entities are provided. A first wireless communication device transmits a first configuration indicating a first set of channel monitoring occasions for a channel. Each channel monitoring occasion of the first set of channel monitoring occasions is aligned to a start of a transmission slot. The first wireless communication device transmits, based on a first listen-before-talk (LBT) in the channel, a first channel reservation signal to reserve a first transmission opportunity (TXOP) in the channel, the first channel reservation signal transmitted during a first channel monitoring occasion of the first set of channel monitoring occasions that is within the first TXOP. The first wireless communication device communicates, with a second wireless communication device, a first communication signal in the channel during the first TXOP.

公开(公告)号：US11032808B2

公开(公告)日：2021-06-08

申请号：US15898987

申请日：2018-02-19

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Sony Akkarakaran ,  Rahul Malik ,  Tamer Kadous ,  Akula Reddy

IPC: H04W72/04 ,  H04B7/185 ,  H04L27/26 ,  H04B1/713 ,  H04L5/00 ,  H04B1/7156

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify control information to be transmitted, in a slot, to a user equipment (UE). The base station may determine a configuration for splitting a control resource set for the control information into a first component control resource set and a second component control resource set within a supported bandwidth of the UE. The first component control resource set may be frequency diverse and time diverse from the second component control resource set. The base station may transmit the configuration to the UE.

公开(公告)号：US11012283B2

公开(公告)日：2021-05-18

申请号：US16801942

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tamer Kadous ,  Tao Luo ,  Xiao Feng Wang ,  Jing Lei

IPC: H04L27/34 ,  H04J1/00 ,  H04L27/26 ,  H04L5/00

Abstract: In order to maintain flexible system bandwidth and a flexible center frequency, without requiring a cyclic prefix or guard interval, a transmitter apparatus transmits a reference signal based on a single carrier waveform having a mixed symbol structure, in reference signal symbols using at least one of a cyclic prefix and a guard interval and transmits data based on the single carrier waveform without the cyclic prefix or the guard interval. The data may be based on input data processed using overlapping FFT windows, and an amount of overlap between the FFT windows may be configurable by the transmitter or the receiver. An apparatus receiving the downlink transmission comprising data based on a single carrier waveform may process the data based on overlapping FFT windows.

公开(公告)号：US11006408B2

公开(公告)日：2021-05-11

申请号：US16284462

申请日：2019-02-25

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Heechoon Lee ,  Huilin Xu

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

Abstract: Methods, systems, and devices for wireless communications are described that support slot format determination for extended cyclic prefix (ECP) transmissions using normal cyclic prefix (NCP) slot formats. A slot format indicator (SFI) for NCP slots may identify transmission directions (e.g., uplink symbols, downlink symbols, or flexible symbols) for different symbols within a slot, and the SFI may provide an indication of a particular slot format that is to be used. Starting and ending times of each NCP symbol in a slot may be time domain mapped to starting and ending times of each ECP symbol in the slot. A transmission direction of each ECP symbol may be determined based at least in part on the transmission direction of at least a portion of at least one NCP symbol that fully or partially overlaps in the time domain with a corresponding ECP symbol.

公开(公告)号：US20210136693A1

公开(公告)日：2021-05-06

申请号：US17086062

申请日：2020-10-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Le Liu ,  Alberto Rico Alvarino ,  Peter Gaal ,  Tao Luo

IPC: H04W52/02 ,  H04W76/15 ,  H04B7/0413

Abstract: Methods, systems, and devices for wireless communications are described. A method for wireless communication at a user equipment (UE) may include: receiving a multicast bandwidth part configuration for multicast communications between a base station and the UE, where the multicast bandwidth part configuration includes a maximum number of multiple-input, multiple-output layers to be used for the multicast communications; establishing a multicast link with the base station for multicast communications; determining to use a reduced number of antennas for multicast reception than the number of antennas used for unicast reception, or determining that the UE is able to decode the multicast communications prior to a remaining portion of the multicast communications; and receiving the multicast communications via the reduced number of antennas, or reducing the radio frequency power prior to completion of a number of repetitions or retransmissions of the multicast communications.

公开(公告)号：US20210127421A1

公开(公告)日：2021-04-29

申请号：US17083222

申请日：2020-10-28

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/04

Abstract: Channel access enhancement for new radio-unlicensed (NR-U) operations are disclosed. In attempting access to a shared communication channel, both base stations and user equipments (UEs) may operate similarly to load-based equipment (LBE) devices by performing extended clear channel access (eCCA) operations independently, such that each of the base stations and UEs may independently acquire the channel occupancy time (COT) of the shared communication spectrum.

公开(公告)号：US20210092783A1

公开(公告)日：2021-03-25

申请号：US16948547

申请日：2020-09-23

Applicant: QUALCOMM INCORPORATED

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Seyed Ali Akbar Fakoorian

IPC: H04W76/14 ,  H04W74/08 ,  H04W76/15 ,  H04W74/00

Abstract: Wireless communications systems and methods related to channel occupancy time (COT) sharing among sidelink user equipment devices (UEs) are provided. A first user equipment (UE) determines a channel occupancy time (COT) in a shared radio frequency band for communicating a sidelink with a second UE. The first UE transmits, to the second UE, the sidelink using first resources in the COT, the sidelink comprising COT sharing information for second resources in the COT.