公开(公告)号：US20240244616A1

公开(公告)日：2024-07-18

申请号：US18559742

申请日：2022-03-24

Applicant: QUALCOMM Incorporated

Inventor： Shaozhen GUO ,  Changlong XU ,  Jing SUN ,  Xiaoxia ZHANG ,  Luanxia YANG ,  Siyi CHEN

IPC: H04W72/1268 ,  H04W72/232

CPC classification number: H04W72/1268 ,  H04W72/232

Abstract: Certain aspects of the present disclosure provide techniques for indicating and determining whether one or more of multiple uplink transmissions scheduled by a common downlink control information (DCI) are based on a channel occupancy time (COT) initiated by the UE, a COT initiated by the network entity, or a combination of COTs initiated by the UE and network entity. The determination may be based on a direct indication in the DCI for one or more of the multiple uplink transmissions. The determination may also be based on determining the type of COT for the remaining uplink transmissions not directly indicated by the DCI. For example, the DCI may indicate a COT type for only a first one of the multiple uplink transmissions and the UE determines a COT type for the remaining uplink transmissions based on various conditions and criteria.

公开(公告)号：US20240237068A1

公开(公告)日：2024-07-11

申请号：US18557638

申请日：2021-07-01

Applicant: QUALCOMM Incorporated

Inventor： Shaozhen GUO ,  Jing SUN ,  Changlong XU ,  Xiaoxia ZHANG ,  Hao XU ,  Luanxia YANG ,  Siyi CHEN

IPC: H04W74/0816 ,  H04W72/1268 ,  H04W72/232 ,  H04W76/20

CPC classification number: H04W74/0816 ,  H04W72/1268 ,  H04W72/232 ,  H04W76/20

Abstract: In a method of wireless communication, a user equipment (UE) receives, from a base station (BS) in a first fixed frame period (FFP), downlink communication information (DCI), where the DCI indicates a scheduled uplink (UL) communication in a second FFP subsequent to the first FFP. The UE monitors for a downlink (DL) signal in the second FFP, and transmits, to the BS based on the monitoring and a first parameter indicating whether the scheduled UL communication is associated with a BS channel occupancy time (COT) or a UE COT, the scheduled UL communication.

公开(公告)号：US20240107579A1

公开(公告)日：2024-03-28

申请号：US18264131

申请日：2021-04-23

Applicant: QUALCOMM Incorporated

Inventor： Luanxia YANG ,  Changlong XU ,  Jing SUN ,  Xiaoxia ZHANG ,  Shaozhen GUO ,  Rajat PRAKASH ,  Hao XU ,  Siyi CHEN

IPC: H04W74/08

CPC classification number: H04W74/0808

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may communicate with multiple transmit receive points (TRPs) in a frame based equipment mode. A wireless node (e.g., the UE and/or one or more of the multiple TRPs) may determine, among the UE and the multiple TRPs, an initiating node that acquired a current channel occupancy time. The wireless node may determine a transmission pattern that includes one or more idle periods based at least in part on a fixed frame period structure associated with the initiating node that acquired the current channel occupancy time. The wireless node may refrain from transmitting during the one or more idle periods, wherein the one or more idle periods include at least an idle period associated with the wireless node. Numerous other aspects are described.

公开(公告)号：US20240098638A1

公开(公告)日：2024-03-21

申请号：US18262142

申请日：2021-04-02

Applicant: QUALCOMM INCORPORATED

Inventor： Siyi CHEN ,  Arumugam CHENDAMARAI KANNAN ,  Changlong XU ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04W52/02 ,  H04W74/08

CPC classification number: H04W52/0229 ,  H04W52/0251 ,  H04W52/028 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may determine an energy pattern corresponding to a characteristic of the first wireless device. The energy pattern may include at least two sub-periods of different energy levels. The first wireless device may transmit the energy pattern on a channel (e.g., an unlicensed channel) prior to transmitting a first message on the channel to indicate the upcoming message to other devices. A second wireless device may monitor the channel during energy detection intervals and may detect the energy pattern. The second wireless device may determine the characteristic of the first wireless device based on detecting the energy pattern and may modify timing for transmission of a second message on the channel based on determining the characteristic. The first wireless device may transmit the first message on the channel based on transmitting the energy pattern.

公开(公告)号：US20240057165A1

公开(公告)日：2024-02-15

申请号：US18547635

申请日：2021-04-30

Applicant: QUALCOMM Incorporated

Inventor： Siyi CHEN ,  Arumugam CHENDAMARAI KANNAN ,  Giovanni CHISCI ,  Jing SUN ,  Vinay CHANDE ,  Xiaoxia ZHANG ,  Changlong XU

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may start, in a no-listen-before-talk (no-LBT) mode and after a first channel occupancy time (COT), an away period during which no transmissions are to occur in abeam direction used in the first COT. The wireless communication device may perform, during the away period, channel sensing. The wireless communication device may transmit a communication in a second COT after the away period, based at least in part on a result of the channel sensing. Numerous other aspects are described.

公开(公告)号：US20230328786A1

公开(公告)日：2023-10-12

申请号：US18043255

申请日：2020-11-10

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Arumugam CHENDAMARAI KANNAN ,  Vinay CHANDE ,  Siyi CHEN

IPC: H04W74/08 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04L5/0053 ,  H04L5/0051 ,  H04W74/002

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a grant including information for triggering a clear channel assessment based sounding reference signal (SRS) transmission. The UE may perform the clear channel assessment for a channel based at least in part on receiving the grant. The UE may transmit, to the base station, the SRS that initiates a shared channel occupancy time (COT) on the channel based at least in part on performing the clear channel assessment. Numerous other aspects are provided.

公开(公告)号：US20230269772A1

公开(公告)日：2023-08-24

申请号：US18004049

申请日：2020-09-02

Applicant: QUALCOMM Incorporated

Inventor： Siyi CHEN ,  Changlong XU ,  Jing SUN ,  Xiaoxia ZHANG ,  Hao XU ,  Rajat PRAKASH

IPC: H04W74/08 ,  H04W76/20 ,  H04W72/23 ,  H04W72/1268

CPC classification number: H04W74/0816 ,  H04W74/0866 ,  H04W76/20 ,  H04W72/23 ,  H04W72/1268

Abstract: Wireless communication systems and methods related to channel occupancy time (COT) sharing when operating in a frame-based-equipment (FBE) mode over a shared frequency band are provided. In one aspect, a user equipment (UE) contends for a channel occupancy time (COT) in a first frame-based equipment (FBE) frame. The UE transmits, to a base station (B S), an uplink communication signal during a first portion of the COT. The UE receives, from the BS based on COT sharing information, a downlink communication signal during a second portion of the COT, wherein the second portion is non-overlapping with the first portion

公开(公告)号：US20230224099A1

公开(公告)日：2023-07-13

申请号：US17925278

申请日：2020-07-30

Applicant: Siyi CHEN ,  Changlong XU ,  Jing SUN ,  Xiaoxia ZHANG ,  Rajat PRAKASH ,  QUALCOMM Incorporated

Inventor： Siyi CHEN ,  Changlong XU ,  Jing SUN ,  Xiaoxia ZHANG ,  Rajat PRAKASH

IPC: H04L1/1867 ,  H04W72/11 ,  H04W72/232

CPC classification number: H04L1/1887 ,  H04L1/189 ,  H04W72/11 ,  H04W72/232

Abstract: A method of wireless communication performed by a user equipment (UE) incudes receiving supplemental semi-persistent scheduling (SPS) via radio resource control (RRC) signaling. The method also includes receiving the downlink re-transmissions according to the supplemental SPS. A method performed by the UE also includes receiving downlink feedback information (DFI) for a packet and determining one or more of resource block allocation, a start and length indicator value (SLIV), or a number of repetitions for re-transmission of the packet in response to the DFI. The method further includes re-transmitting the packet during a re-transmission period based on one or more of the resource block allocation, the SLIV, or the number repetition.

公开(公告)号：US20250080183A1

公开(公告)日：2025-03-06

申请号：US18553838

申请日：2021-05-08

Applicant: QUALCOMM Incorporated

Inventor： Giovanni CHISCI ,  Jing SUN ,  Vinay CHANDE ,  Arumugam CHENDAMARAI KANNAN ,  Siyi CHEN ,  Xiaoxia ZHANG

IPC: H04B7/06 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communication are described. A communication device may receive control signaling indicating a beam configuration. The communication device may select a first beam (for example, a sensing beam) for wireless communication based on the beam configuration. The first beam including a first beam gain and a first pointing direction. The communication device may select a second beam (for example, a transmitting beam) based on the beam configuration. The second beam including a second beam gain and a second pointing direction. The communication device may determine (for example, adjust) an energy detection threshold (EDT) associated with the second beam based on the second beam gain in the first pointing direction and the first beam gain in the first pointing direction. The communication device may sense a channel using the second beam and the EDT associated with the second beam.

公开(公告)号：US20250015930A1

公开(公告)日：2025-01-09

申请号：US18710988

申请日：2022-01-27

Applicant: QUALCOMM Incorporated

Inventor： Shaozhen GUO ,  Changlong XU ,  Jing SUN ,  Xiaoxia ZHANG ,  Luanxia YANG ,  Siyi CHEN ,  Hao XU

IPC: H04L1/1607 ,  H04L5/00 ,  H04W72/25

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for multi-bit feedback via a sidelink feedback channel. In some aspects, a first user equipment (UE) and a second UE may support a physical sidelink feedback channel (PSFCH) design that is capable of conveying multi-bit feedback across multiple resource blocks. For example, the first UE may monitor for one or more sidelink data messages from the second UE and may transmit, to the second UE over multiple resource blocks of a PSFCH, a feedback message indicating multiple feedback bits associated with the sidelink data messages. The first UE may indicate or otherwise convey the multiple feedback bits via various sequence types or coding schemes. Additionally, or alternatively, the first UE and the second UE may support a resource selection scheme involving one or more parameters associated with conveying multi-bit feedback over a PSFCH.