公开(公告)号：US12267174B2

公开(公告)日：2025-04-01

申请号：US18003640

申请日：2020-08-14

Applicant: QUALCOMM Incorporated

Inventor： Shaozhen Guo ,  Xiaoxia Zhang ,  Changlong Xu ,  Jing Sun

IPC: H04L1/00 ,  H04L1/1822 ,  H04L1/1867 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may start a timer after transmitting an uplink communication on a physical uplink shared channel to a base station using a configured grant. The UE may determine whether the uplink communication is acknowledged as received by the base station based at least in part on determining whether a downlink communication from the base station is detected within a time duration associated with the timer. Numerous other aspects are provided.

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：US20250168891A1

公开(公告)日：2025-05-22

申请号：US18835269

申请日：2022-03-31

Applicant: QUALCOMM INCORPORATED

Inventor： Shaozhen Guo ,  Mostafa Khoshnevisan ,  Peter Gaal ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Yan Zhou ,  Fang Yuan

IPC: H04W74/0833 ,  H04W72/23 ,  H04W76/38

Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications system may support techniques for random access response (RAR) enhancements for multiple random access channel (RACH) procedures. In some cases, a user equipment (UE) may receive multiple physical downlink control channel (PDCCH) orders triggering respective RACH procedures, each PDCCH order indicating a preamble identifier associated with the respective RACH procedure. In some cases, the preamble identifiers may be the same or different. The UE may transmit a random access preamble corresponding to a preamble identifier indicated in a PDCCH order and may receive a random access response associated with a respective RACH procedure based at least in part on an indication included in the random access response. In some cases, the indication may be associated with a preamble identifier indication. In some other cases, the indication may be associated with a timing advance group.

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：US20250063522A1

公开(公告)日：2025-02-20

申请号：US18720558

申请日：2022-02-09

Applicant: QUALCOMM INCORPORATED

Inventor： Fang Yuan ,  Yan Zhou ,  Mostafa Khoshnevisan ,  Shaozhen Guo ,  Tao Luo ,  Peter Gaal ,  Junyi Li ,  Xiaoxia Zhang

IPC: H04W56/00 ,  H04W72/231

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicating a first uplink message using a first uplink carrier and a first timing advance (TA) value associated with a first transmission configuration indicator (TCI) state and a second uplink message using a second uplink carrier and a second TA value associated with a second TCI state for the UE. The UE may receive a timing advance group (TAG) configuration which indicates a TA value to apply for a supplementary uplink (SUL) carrier of the serving cell, which is one of the first TA or second TA values. The UE may then transmit a SUL message using the SUL carrier of the serving cell in accordance with the TA value determined for the SUL carrier based on the TAG configuration for the UE.

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：US20240388350A1

公开(公告)日：2024-11-21

申请号：US18683441

申请日：2021-10-18

Applicant: QUALCOMM INCORPORATED

Inventor： Shaozhen Guo ,  Mostafa Khoshnevisan ,  Jing Sun ,  Xiaoxia Zhang ,  Yan Zhou

IPC: H04B7/06 ,  H04B7/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive a downlink control message scheduling multiple downlink transmission repetitions of multiple transport blocks (TBs), the downlink control message indicating a specified transmission configuration indicator (TCI) state for receiving the multiple downlink transmission repetitions according to the scheduling, the multiple downlink transmission repetitions including a first set of downlink transmission repetitions and a second set of downlink transmission repetitions. The UE may be configured to receive, via a default TCI state different from the specified TCI state, a first subset of downlink transmission repetitions from the first set of downlink transmission repetitions, the second set of downlink transmission repetitions, or both, based on a first time interval between a receipt of the downlink control message and a receipt of at least one downlink transmission repetition failing to satisfy a time duration.

公开(公告)号：US20240340902A1

公开(公告)日：2024-10-10

申请号：US18718715

申请日：2022-02-10

Applicant: QUALCOMM Incorporated

Inventor： Shaozhen Guo ,  Mostafa Khoshnevisan ,  Fang Yuan ,  Jing Sun ,  Xiaoxia Zhang ,  Yan Zhou ,  Tao Luo

IPC: H04W72/20 ,  H04L1/1607 ,  H04L5/00 ,  H04W72/1273

CPC classification number: H04W72/20 ,  H04L1/1607 ,  H04L5/0053 ,  H04W72/1273

Abstract: Wireless communication capabilities are disclosed that support determination of timing advance for a physical uplink control channel (PUCCH) in joint acknowledgement feedback mode of a network having multiple timing advance groups (TAGs) configured per serving cell and multiple control resource set (CORESET) pool index values configured per bandwidth part (BWP). In a first aspect, a method of such capabilities includes receiving a configuration message including at least a feedback mode configuration configuring a joint acknowledgement feedback mode, a TAG configuration for each serving cell, and any CORESET pool indices for the BWPs of the serving cells. A user equipment (UE) receives downlink transmissions and determines a timing advance for a PUCCH with a joint acknowledgement message using the last downlink control information (DCI) message received scheduling the downlink transmissions. Alternatively, a UE may use a predetermined timing advance. Other aspects and features are also claimed and described.

公开(公告)号：US20230261694A1

公开(公告)日：2023-08-17

申请号：US18005486

申请日：2020-09-09

Applicant: QUALCOMM Incorporated

Inventor： Shaozhen Guo ,  Jing Sun ,  Changlong Xu ,  Xiaoxia Zhang

IPC: H04B1/7143 ,  H04W74/08 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04B1/7143 ,  H04W74/0808 ,  H04L5/0078 ,  H04L27/2607

Abstract: Wireless communications systems and methods related to frequency hopping in uplink transmission. A UE may be configured to transmit a first subset of data on a first frequency band to a BS over a first set of symbols. The UE may perform a listen-before-talk (LBT) during an LBT gap comprising a second set of symbols between the first set of symbols and a third set of symbols. The UE may use the LBT in the LBT gap to determine availability of a second frequency sub-band for a second subset of data that is a repetition of the first subset of data. The UE may be configured to transmit the second subset of data on the second frequency band to the BS over a third set of symbols if the LBT passes. Thus, embodiments of the present disclosure enable a UE to perform frequency hopping with repetitions across unlicensed frequency sub-bands.

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.