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：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：US12113601B2

公开(公告)日：2024-10-08

申请号：US18063218

申请日：2022-12-08

Applicant: QUALCOMM Incorporated

Inventor： Siyi Chen ,  Arumugam Chendamarai Kannan ,  Changlong Xu ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04B7/08 ,  H04B7/06 ,  H04B17/318 ,  H04W24/08 ,  H04W24/10

CPC classification number: H04B7/0857 ,  H04B7/0632 ,  H04B17/318 ,  H04W24/08 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information for a received signal strength indication (RSSI) measurement, the configuration information indicating a transmission configuration indication (TCI) state configuration for the RSSI measurement. The UE may perform the RSSI measurement based at least in part on the TCI state configuration. The UE may transmit a measurement report of the RSSI measurement. Numerous other aspects are described.

公开(公告)号：US20230262671A1

公开(公告)日：2023-08-17

申请号：US18001407

申请日：2020-08-20

Applicant: QUALCOMM Incorporated

Inventor： Siyi Chen ,  Changlong Xu ,  Jing Sun ,  Xiaoxia Zhang ,  Hao Xu ,  Rajat Prakash

IPC: H04W72/0453 ,  H04W72/1273 ,  H04L5/00 ,  H04W76/20 ,  H04W72/23 ,  H04L1/1607

CPC classification number: H04W72/0453 ,  H04W72/1273 ,  H04L5/0051 ,  H04W76/20 ,  H04W72/23 ,  H04L1/1664

Abstract: In some implementations, a method of wireless communication includes obtaining, at a user equipment (UE), an allocation of frequency resources for a group common demodulation reference signal (GC-DMRS) associated with a plurality of UEs that include the UE. The method also includes receiving, at the UE from a base station, a frequency domain resource allocation (FDRA) for a physical downlink shared channel (PDSCH) scheduled for transmission to the UE. The method includes receiving, from the base station, the GC-DMRS and the PDSCH. The method also includes generating a channel estimate based on the GC-DMRS and the allocation of frequency resources to the GC-DMRS. The method further includes demodulating the PDSCH based on the channel estimate. Other aspects and features are also claimed and described.

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：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.