公开(公告)号：US20240349340A1

公开(公告)日：2024-10-17

申请号：US18577613

申请日：2021-09-22

Applicant: QUALCOMM Incorporated

Inventor： Siyi Chen ,  Giovanni Chisci ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Jing Sun ,  Rajat Prakash ,  Hao Xu ,  Changlong Xu ,  Luanxia Yang ,  Shaozhen Guo

IPC: H04W74/0816 ,  H04L27/26 ,  H04W28/02 ,  H04W92/18

CPC classification number: H04W74/0816 ,  H04L27/2605 ,  H04W28/0278 ,  H04W92/18

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support mechanisms for sidelink channel occupancy time (COT) sharing request signaling in a wireless communication system. A sidelink transmitting user equipment (UE) transmits a COT sharing request to a sidelink initiator UE. The COT sharing request indicates to the initiator UE to initiate sharing of a COT acquired by the initiator UE with the transmitting UE. The initiator UE, in response to receiving the COT sharing request, determines to acquire the COT, and initiates COT sharing by transmitting, to the transmitting UE, COT sharing information including information to facilitate access to the COT by the transmitting UE. The transmitting UE, based on the COT sharing information received from the initiator UE, access the sidelink channel during the COT and transmits data over the sidelink channel.

公开(公告)号：US20240430912A1

公开(公告)日：2024-12-26

申请号：US18696266

申请日：2021-11-10

Applicant: QUALCOMM INCORPORATED

Inventor： Siyi Chen ,  Jing Sun ,  Xiaoxia Zhang ,  Rajat Prakash ,  Changlong Xu ,  Luanxia Yang ,  Shaozhen Guo ,  Hao Xu

IPC: H04W72/25 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a user equipment (UE) may transmit a sidelink message in accordance with one or more parameters associated with a priority of the sidelink message. The UE may determine a channel access priority class (CAPC) associated with the sidelink message based on the priority of the sidelink message. The UE may perform a listen-before-talk (LBT) procedure in accordance with the CAPC to gain access to a wireless channel for a channel occupancy time (COT). The UE may select a set of starting positions relative to the COT based on the priority, the CAPC, or both. The UE may transmit the sidelink message within the COT based on a starting position of the set of starting positions and the LBT procedure. The UE may perform a quantity of one or more retransmissions of the sidelink message based on the CAPC.

公开(公告)号：US20250106839A1

公开(公告)日：2025-03-27

申请号：US18002446

申请日：2020-09-02

Applicant: QUALCOMM Incorporated

Inventor： Luanxia Yang ,  Changlong Xu ,  Jing Sun ,  Xiaoxia Zhang ,  Hao Xu

IPC: H04W72/1268 ,  H04L47/28 ,  H04W72/566

Abstract: Enhancement of uplink transmissions with survival time or delay sensitive data is discussed. A set of time sensitive resources is preconfigured for one or more user equipment (UEs). A serving base station communicates an identification of the configured time sensitive resources to the UEs. Upon detection of time sensitive data for transmission, a UE may send a time sensitive scheduling request to the base station that indicates the UE will be transmitting time sensitive data on the configured resources. When shared amount multiple UEs, the serving base station may send availability signals to the other UEs when the configured time sensitive resources are being used by another UE and when the configured resources are available again. Other aspects and features are also claimed and described.

公开(公告)号：US20240414670A1

公开(公告)日：2024-12-12

申请号：US18699851

申请日：2021-12-22

Applicant: QUALCOMM INCORPORATED

Inventor： Luanxia Yang ,  Changlong Xu ,  Rajat Prakash ,  Jing Sun ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Jing Dai ,  Shaozhen Guo ,  Siyi Chen

IPC: H04W56/00 ,  H04W92/18

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for propagation delay compensation (PDC). In some systems, a network entity and a group of user equipment (UEs) may support a group-based PDC procedure according to which the network entity may provide group-based PDC information to the group of UEs. In some aspects, a UE may participate in such a group-based PDC procedure in accordance with a clock accuracy constraint of the UE and depending on whether other UEs are likely to have similar PDC information. The network entity may assign an identifier (ID) to the group of UEs and scramble a message including the group-based PDC information using the ID. As such. UEs of the group of UEs may decode the message using the ID and adjust a timing of communications with the network entity using the group-based PDC information.

公开(公告)号：US20250056567A1

公开(公告)日：2025-02-13

申请号：US18717968

申请日：2022-02-24

Applicant: QUALCOMM INCORPORATED

Inventor： Siyi Chen ,  Jing Sun ,  Xiaoxia Zhang ,  Changlong Xu ,  Shaozhen Guo ,  Luanxia Yang

IPC: H04W72/25 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a first UE may be configured to transmit multiple sidelink synchronization signal blocks (S-SSBs) within an S-SSB period, the transmissions back-to-back or non-back-to-back. The first UE may determine one or more listen-before-talk occasions associated with the S-SSBs, participate in at least one listen-before-talk procedure during a listen-before-talk occasion, and transmit the multiple S-SSBs to a second UE. In some other examples, the first UE may identify a reference frequency position of a reference S-SSB in a sidelink BWP. The first UE may transmit the reference S-SSB and one or more additional S-SSBs to a second UE, the one or more additional S-SSBs having frequency positions following the reference frequency position.

公开(公告)号：US20250150213A1

公开(公告)日：2025-05-08

申请号：US18835282

申请日：2022-03-17

Applicant: QUALCOMM INCORPORATED

Inventor： Shaozhen Guo ,  Changlong Xu ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Hao Xu ,  Luanxia Yang ,  Siyi Chen

IPC: H04L1/1829 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive configuration information indicating a sidelink resource pool, a time gap, and a periodicity of feedback occasions. The UE may generate feedback bits associated with multiple received sidelink messages based on the configuration information. The UE may transmit the feedback bits in a single, multi-bit feedback message according to one or more rules. In some examples, the UE may drop one or more sets of feedback bits (e.g., in the case of a collision of too many feedback messages in a single slot) based on a weighted average priority level of one or more valid feedback bits in each of multiple sets of feedback bits.

公开(公告)号：US20240324031A1

公开(公告)日：2024-09-26

申请号：US18574991

申请日：2021-09-01

Applicant: QUALCOMM INCORPORATED

Inventor： Fang Yuan ,  Luanxia Yang ,  Aleksandar Damnjanovic ,  Mostafa Khoshnevisan ,  Jing Sun ,  Wooseok Nam ,  Tao Luo ,  Rajat Prakash ,  Xiaoxia Zhang

IPC: H04W76/10 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04W76/10 ,  H04B7/0626 ,  H04L5/0051

Abstract: This disclosure provides systems, methods and apparatus for aperiodic sounding reference signal (SRS) transmissions. In some aspects, a user equipment (UE) or a network entity may determine one or more time intervals for sounding reference signal (SRS) transmissions from a type of link, such as a link with another UE or a link with the network entity, used to communicate control signaling that triggers the SRS transmissions for the UE. A time interval in which the UE may not expect to transmit SRSs after receiving the control signaling, a time interval between the control signaling and the associated SRSs, a time interval between the control signaling and reception of one or more channel state information reference signals (CSI-RSs) used for precoding the SRSs, or any combination thereof, may be increased by an additional offset when the control signaling triggering the SRSs is received via the cooperative link.