公开(公告)号：US20230135780A1

公开(公告)日：2023-05-04

申请号：US17518022

申请日：2021-11-03

Applicant: QUALCOMM Incorporated

Inventor： Iyab Sakhnini ,  Tao Luo ,  Jing Sun ,  Morteza Soltani ,  Xiaoxia Zhang ,  Jun Ma

IPC: H04L27/26 ,  H04W8/24

Abstract: Methods, systems, and devices for wireless communications are described for indication of one or more symbol structures for one or multiple subsets of a set of symbols. The one or more symbol structures may include one or more guard interval (GI)-based symbol formats that are to be applied to one or more of the subsets of symbols. Different symbol formats may be indicated for different subsets of symbols, and a first subset of symbols may use a GI-based symbol format and a second subset of symbols may use a CP-based or GI-based symbol format. A base station may transmit control signaling to a user equipment to indicate one or more symbol structures for the one or more subsets of symbols, and the UE and the base station may communicate data in one or more slots in accordance with the indicated symbol structures based on the control signaling.

公开(公告)号：US11638248B2

公开(公告)日：2023-04-25

申请号：US17162257

申请日：2021-01-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Gene Wesley Marsh ,  Shailesh Patil ,  Juan Montojo ,  Ozcan Ozturk ,  Peter Gaal

IPC: H04W72/04 ,  H04W74/08 ,  H04W72/044

Abstract: Improved communications, including indication of channel occupancy time-structure information (COT-SI) for NR-U sidelink (NR-U SL) operations is disclosed. A UE may establish a current channel occupancy time (COT) on a shared communication spectrum for UE transmissions in response to a successful listen before talk (LBT) procedure. The UE may then generates a COT structure information (COT-SI) message including at least a remaining duration of the current COT and a set of time and frequency resources of the current COT. The COT-SI message may be transmitted by the UE to one or more neighboring UEs via sidelink transmission. Once the COT-SI message is sent, the UE transmits the UE transmission within the set of time and frequency resource of the current COT.

公开(公告)号：US11638203B2

公开(公告)日：2023-04-25

申请号：US17155376

申请日：2021-01-22

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Xiaoxia Zhang ,  Jing Sun ,  Srinivas Yerramalli ,  Zhifei Fan ,  Wooseok Nam ,  Tao Luo ,  Juan Montojo

IPC: H04W48/16 ,  H04W88/06 ,  H04W16/14 ,  H04L27/26 ,  H04W48/18 ,  H04W72/04 ,  H04W36/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an operating mode associated with synchronization signal block (SSB) transmission in a band, wherein the operating mode is one of a licensed operating mode or an unlicensed operating mode; and receive one or more SSBs based at least in part on the operating mode. Numerous other aspects are described.

公开(公告)号：US11637730B2

公开(公告)日：2023-04-25

申请号：US17151046

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/01 ,  H04W80/02 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/27

Abstract: Aspects of the disclosure relate to wireless communication networks having a capability of controlling the mapping of reference signals onto a carrier based on one or more Doppler parameters. A demodulation reference signal (DMRS) is mapped to a carrier according to a pattern based on one or more Doppler parameters, such as a Doppler frequency and/or a rate of change of channel conditions. In a further example, if an initial transmission of an information packet fails due to a high Doppler scenario, the probability of success of the retransmission may be improved by altering the DMRS configuration to account for the high Doppler scenario. Other aspects, examples, and features are also claimed and described.

公开(公告)号：US20230124759A1

公开(公告)日：2023-04-20

申请号：US18066866

申请日：2022-12-15

Applicant: QUALCOMM Incorporated

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

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

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：US20230124012A1

公开(公告)日：2023-04-20

申请号：US17505539

申请日：2021-10-19

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Jing Sun ,  Tao Luo ,  Piyush Gupta ,  Juan Montojo ,  Peter Gaal ,  Sony Akkarakaran

IPC: H04W72/02 ,  H04W72/04 ,  H04L5/00 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may utilize opportunistic cooperative relaying to support exchanging packets between UEs without establishing or maintaining beamforming alignment between the UEs. Specifically, a source UE may invite nearby UEs (e.g., helper UEs) that receive a sidelink transmission (e.g., a packet meant for a different destination UE) to perform a single frequency network (SFN)-type transmission to opportunistically relay the packet to the destination UE. The helper UEs may receive, decode, and transmit the sidelink signaling from the source UE without establishing or configuring a relay agreement with the source UE. The destination UE may receive the sidelink signaling via cascading, SFN-type transmissions by one or more helper UEs. The destination UE may respond to the sidelink signaling with feedback information via one or more helper UEs or directly to the source UE.

公开(公告)号：US20230123276A1

公开(公告)日：2023-04-20

申请号：US17503900

申请日：2021-10-18

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Jing Sun ,  Xiaoxia Zhang ,  Jun Ma ,  Hemant Saggar ,  Morteza Soltani

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

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device such as a user equipment (UE) may receive control signaling from a scheduling device such as a base station which indicates a configuration for decoding control channel information at the UE using a single discrete transform process. In such cases, the configuration may be for decoding control channel information such as downlink control information (DCI) that is time multiplexed with data channel information in one or more symbols of a single carrier waveform. Using the configuration, the UE may decode the control channel information and the data channel information using the discrete transform process.

公开(公告)号：US11622368B2

公开(公告)日：2023-04-04

申请号：US17115475

申请日：2020-12-08

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Mostafa Khoshnevisan ,  Tao Luo ,  Jing Sun ,  Xiaoxia Zhang ,  Arumugam Chendamarai Kannan ,  Wooseok Nam

IPC: H04W72/12 ,  H04W72/04 ,  H04B7/024 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0413 ,  H04L25/03 ,  H04L1/06 ,  H04L1/00 ,  H04W28/06 ,  H04W72/044 ,  H04L1/1607 ,  H04W4/30

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first control signal in a control resource set (CORESET) from a first transmit receive point (TRP), wherein the first control signal includes a set of control channel elements (CCEs) to encode a first portion of a first downlink control information (DCI) message and/or a first portion of a second DCI message. The UE may receive a second control signal in the CORESET from a second TRP, wherein the second control signal includes the set of CCEs to encode a second portion of the first DCI message and/or a second portion of the second DCI message. Numerous other aspects are provided.

公开(公告)号：US11621756B2

公开(公告)日：2023-04-04

申请号：US17308492

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Chih-Hao Liu ,  Jing Sun ,  Xiaoxia Zhang ,  Sony Akkarakaran ,  Tao Luo ,  Peter Gaal ,  Juan Montojo

IPC: H04B7/06 ,  H04W92/18

Abstract: CG-based sidelink beamforming alignment is disclosed. The initiator UE may receive, from a base station, a CG indicating one or more CG resources for a beamforming alignment procedure. The initiator UE may transmit, to at least one responder UE via one or more Tx beams on the one or more CG resources, beam-sweeping SCI for the beamforming alignment procedure. The beam-sweeping SCI may include at least one of: a Tx beam index, a time period to monitor for beam-feedback SCI, or a time window including CG occasions for a same beam transmission of ACK SCI. The initiator UE may monitor, over the time period, for beam-feedback SCI from the at least one responder UE. The initiator UE may receive, from the at least one responder UE, the beam-feedback SCI within the time period.

公开(公告)号：US20230098101A1

公开(公告)日：2023-03-30

申请号：US17485089

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/18 ,  H04W72/04

Abstract: Methods, systems, and devices supporting flexible frequency domain resource allocation (FDRA) for sidelink are described. For example, a wireless device may receive, over a sidelink channel, control information including a parameter associated with a first FDRA of a first transport block (TB) associated with an initial transmission and an indication of a second FDRA of a second TB associated with a subsequent transmission after the initial transmission. The wireless device may identify the first FDRA of the first TB based on receiving the control information and may communicate one or more signals over the sidelink channel based on identifying the first FDRA of the first TB and receiving the indication of the second FDRA of the second TB. In some examples, the wireless device may receive, over a second sidelink channel, second control information including a second parameter associated with a size of the second TB.