公开(公告)号：US12302393B2

公开(公告)日：2025-05-13

申请号：US17840157

申请日：2022-06-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/0816 ,  H04L1/00 ,  H04L5/00 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/1263 ,  H04W74/00 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting user equipment may receive control information indicative of a plurality of starting symbols in a first slot, the plurality of starting symbols including at least one default starting symbol and one or more subsequent starting symbols, each of the plurality of starting symbols representing a potential starting symbol for transmission, by the transmitting UE, of a sidelink communication. The transmitting UE may perform a listen-before-talk procedure during at least the first slot and may transmit, to a receiving UE and based on performance of the listen-before-talk procedure during at least the first slot, at least an initial portion of the sidelink communication during a selected starting symbols of the plurality of starting symbols, the selected starting symbol being one of the one or more subsequent starting symbols and representing a beginning of a channel occupancy duration.

公开(公告)号：US12298381B2

公开(公告)日：2025-05-13

申请号：US17364307

申请日：2021-06-30

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Wooseok Nam ,  Tao Luo ,  Junyi Li ,  Juan Montojo ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Taesang Yoo ,  Simone Merlin ,  Srinivas Yerramalli ,  John Edward Smee

IPC: G01S13/56 ,  G01S7/03 ,  G01S7/35 ,  G01S13/02

Abstract: Monostatic radar with progressive length transmission may be used with half-duplex systems or with full-duplex systems to reduce self-interference. The system transmits a first signal for a first duration and receives a first reflection of the first signal from a first object during a second duration. The system transmits a second signal for a third duration longer than the first duration and receives a second reflection of the second signal from a second object during a fourth duration. The system calculates a position of the first object and the second object based on the first reflection and the second reflection. The first signal, first duration, and second duration are configured to detect reflections from objects within a first distance of the system. The second signal, third duration, and fourth duration are configured to detect reflections from objects between the first distance and a second distance from the system.

公开(公告)号：US12295043B2

公开(公告)日：2025-05-06

申请号：US18243234

申请日：2023-09-07

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Sony Akkarakaran ,  Muhammad Nazmul Islam ,  Tao Luo

IPC: H04W74/0833 ,  H04W36/00 ,  H04W76/10

Abstract: This disclosure provides systems, methods and apparatus for wireless communications that support fallback from a 2-step to a 4-step random access procedures. A user equipment (UE) may establish a connection with a base station using a random access procedure. The random access procedure may be a 2-step random access procedure and reduce a number of handover exchange messages. The 2-step random access procedure may include the UE transmitting, to the base station, a first random access message including a preamble and a payload. In some implementations, the base station may receive the preamble but fail to receive or decode the payload. The random access procedure may utilize the received preamble information instead of performing retransmission of the first random access message. The base station may transmit a second random access message to the UE indicating, explicitly or implicitly, a fallback to a 4-step random access procedure for connection establishment.

公开(公告)号：US12295035B2

公开(公告)日：2025-05-06

申请号：US17906509

申请日：2020-04-16

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Changlong Xu ,  Chih-Hao Liu ,  Ozcan Ozturk ,  Yisheng Xue

IPC: H04W74/0816 ,  H04L27/26 ,  H04W72/25 ,  H04W74/08

Abstract: Wireless communications systems and methods related to use of cyclic prefix (CP) extensions for channel occupancy time (COT) sharing among sidelink user equipment devices (UEs) are provided. A first UE detects a first sidelink transmission in a COT, the COT for sharing with multiple sidelink UEs including the first sidelink UE. The first UE may determine a CP extension length for transmitting a second sidelink transmission after the first sidelink transmission, where a gap duration between the first sidelink transmission and the second sidelink transmission satisfies a listen-before-talk (LBT) gap time threshold. The first UE may apply a CP extension having the CP extension length to the second sidelink transmission and transmit, to a second sidelink UE, the second sidelink transmission with the CP extension.

公开(公告)号：US12279251B2

公开(公告)日：2025-04-15

申请号：US18542325

申请日：2023-12-15

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Jing Sun ,  Lik Hang Silas Fong

IPC: H04W72/1263 ,  H04W52/52 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/20 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described for improving sidelink communication reliability. In some examples, a user equipment (UE) may map allocated sidelink resources from a logical domain to a physical domain, where the mapped resources may include greater frequency diversity in the physical domain A frequency range of a sidelink control channel or of a sidelink data channel may be greater in the physical domain than in the logical domain after the mapping. In some examples, sidelink communications may be associated with an aggregation factor that represents a number of repetitions of a sidelink communication. In this example, a UE may repeat a sidelink communication within a contention-based resource pool a number of times before receiving feedback in order to increase communication reliability. A first UE may communicate a sidelink communication with a second UE using a resource mapping or repetitions of the sidelink communication.

公开(公告)号：US12279239B2

公开(公告)日：2025-04-15

申请号：US17738976

申请日：2022-05-06

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Mostafa Khoshnevisan

IPC: H04W72/04 ,  H04W72/0446 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A waveform for communications between a user equipment (UE) and a base station may be generated or decoded based on a resource allocation of a slot for the communications. In some cases, the UE may receive control information from the base station that indicates the resource allocation for the slot, where the slot contains a defined number of symbol periods (e.g., 14 symbol periods), or the defined number of symbol periods and at least one additional symbol period. The waveform may then be generated (e.g., transmitted) or decoded (e.g., received) based on the number of symbol periods in the slot. Additionally or alternatively, the UE and base station may identify an operating mode of the UE, identify allowed resource allocation sizes for generating or decoding the waveform, and generate or decode the waveform based on the allowed resource allocation sizes.

公开(公告)号：US12273225B2

公开(公告)日：2025-04-08

申请号：US18317840

申请日：2023-05-15

Applicant: QUALCOMM Incorporated

Inventor： Zhifei Fan ,  Jing Sun ,  Piyush Gupta

IPC: H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a reader device may transmit a delta message that indicates a frequency difference between a data tone frequency for the reader device and a helper tone frequency. The reader device may transmit a data tone signal at the data tone frequency and a helper tone signal at the helper tone frequency. The helper tone signal may be a waveform that is shared among multiple reader devices. Numerous other aspects are described.

公开(公告)号：US12267715B2

公开(公告)日：2025-04-01

申请号：US16998687

申请日：2020-08-20

Applicant: QUALCOMM Incorporated

Inventor： Hua Wang ,  Piyush Gupta ,  Junyi Li ,  Xiaoxia Zhang ,  Jing Sun ,  Yisheng Xue ,  Seyed Ali Akbar Fakoorian

IPC: H04W24/10 ,  H04L5/00 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for determining sidelink channel metrics using reference signal measurements of reference signals transmitted by other UEs. A first UE may receive a control message from a base station, and the control message may indicate a measurement threshold. The first UE may generate a reference signal measurement of a reference signal transmitted by a second UE via a sidelink channel between the first UE and the second UE. The UE may transmit a measurement report to the base station based at least in part on the measurement satisfying the threshold. The report may be a quantized value of the measurement or a bit indicating that the measurement satisfies the threshold. Based on receipt of the measurement report, the base station may determine to transmit data to the second UE via a transmission to the first UE.

公开(公告)号：US12261795B2

公开(公告)日：2025-03-25

申请号：US17246276

申请日：2021-04-30

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Yitao Chen ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04L5/00 ,  H04W72/044 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communication are described to indicate transmit and receive beam patterns within an SRS resource set configured for beam management. For example, a base station may configure a user equipment (UE) with a sounding reference signal (SRS) resource set for beam management, where the configuration may indicate a transmit beam pattern. The SRS resource set may include one or more groups of SRS resources which may be used to indicate the transmit beam pattern. A transmit beam may be the same for each SRS resource within a respective group, but may be different across different groups. The UE may transmit one or more SRS to the base station, each using a respective transmit beam according to the configuration. The base station may indicate a transmit beam to the UE based on the SRS.

公开(公告)号：US12255683B2

公开(公告)日：2025-03-18

申请号：US18181446

申请日：2023-03-09

Applicant: QUALCOMM Incorporated

Inventor： Morteza Soltani ,  Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Karoly Becze

IPC: H04B10/11 ,  H04B10/80 ,  H04W52/08

Abstract: In an aspect, an OWC transmitter transmits, to an OWC receiver, a first DC bias parameter, receives, from the OWC receiver, DC bias feedback based on a measurement associated with an OWC link between the OWC transmitter and the OWC receiver, and transmits an OWC signal with a second DC bias parameter that is based on the DC bias feedback from the OWC receiver. In another aspect, an OWC receiver receives, from an OWC transmitter, a first DC bias parameter, transmits DC bias feedback based on a measurement associated with an OWC link between the OWC transmitter and the OWC receiver, and receives, from the OWC transmitter, an OWC signal having a second DC bias parameter based on the DC bias feedback.