公开(公告)号：US20230403109A1

公开(公告)日：2023-12-14

申请号：US18252137

申请日：2021-01-12

Applicant: QUALCOMM Incorporated

Inventor： Sourjya DUTTA ,  Kapil GULATI ,  Junyi LI ,  Shuanshuan WU ,  Hui GUO ,  Gabi SARKIS

IPC: H04L5/00

CPC classification number: H04L5/0023 ,  H04L5/0053

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a plurality of sidelink transmissions associated with a spatial division multiplexing (SDM) configuration. The UE may fail to decode at least one sidelink transmission of the plurality of sidelink transmissions. The UE may transmit feedback indicating the failure to decode the at least one sidelink transmission, wherein the feedback includes an indication of at least one layer of the SDM configuration associated with the at least one sidelink transmission. Numerous other aspects are described.

公开(公告)号：US20230276494A1

公开(公告)日：2023-08-31

申请号：US18015302

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Sourjya DUTTA ,  Hui GUO ,  Kapil GULATI ,  Junyi LI ,  Gabi SARKIS

IPC: H04W74/08 ,  H04W72/563

CPC classification number: H04W74/0808 ,  H04W72/563 ,  H04B17/318

Abstract: Aspects presented herein improve congestion control mechanism for UEs with multiple TRPs, where at least one of the SL RSSI measurement, the CBR measurement, the CR evaluation and/or the congestion control mechanism for the UE is optimized. In one aspect, the apparatus evaluates a CR for each TRP of a plurality of TRPs at the UE. The apparatus determines whether the UE is allowed to transmit on one or more of the TRPs of the plurality of TRPs based at least on the evaluated CR for each TRP of the plurality of TRPs and on at least one CR limit. The apparatus transmits on at least one TRP of the one or more of the TRPs based on the determination whether to transmit on the one or more TRPs.

公开(公告)号：US20230122730A1

公开(公告)日：2023-04-20

申请号：US17909973

申请日：2020-04-08

Applicant: QUALCOMM Incorporated

Inventor： Hui GUO ,  Kapil GULATI ,  Sudhir Kumar BAGHEL ,  Tien Viet NGUYEN ,  Shuanshuan WU

IPC: H04W72/25

Abstract: An apparatus decodes sidelink control information to obtain resource reservation information for sidelink communication. The apparatus maintains a mapping of the resource reservation information. The apparatus reports information comprised in the mapping to a base station.

公开(公告)号：US20230046308A1

公开(公告)日：2023-02-16

申请号：US17759171

申请日：2020-02-14

Applicant: QUALCOMM Incorporated

Inventor： Hui GUO ,  Tien Viet NGUYEN ,  Kapil GULATI ,  Sudhir Kumar BAGHEL

IPC: H04L1/08 ,  H04L1/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may reserve a transmission resource for transmitting a transmission block (TB) via a sidelink communication; reserve a retransmission mission resource for retransmitting the TB, wherein the retransmission resource is reserved such that at least one hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback occasion occurs between transmission of the TB and a first retransmission of the TB; and communicate with another UE via the sidelink communication based at least in part on the transmission and retransmission resources. Numerous other aspects are provided.

公开(公告)号：US20250133520A1

公开(公告)日：2025-04-24

申请号：US18681399

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Hui GUO ,  Qiaoyu LI ,  Kangqi LIU ,  Hao XU

IPC: H04W56/00 ,  H04W8/00 ,  H04W72/25 ,  H04W84/06 ,  H04W92/18

Abstract: An aerial device receives a timing advance configuration from a base station for sidelink communication with one or more user equipments (UEs), the timing advance configuration indicating an initial timing advance for the sidelink communication with the one or more UEs. The aerial device transmits a discovery message from the aerial device to the one or more UEs at a transmission time based on the initial timing advance relative to a reference time of a sidelink synchronization reference.

公开(公告)号：US20240414744A1

公开(公告)日：2024-12-12

申请号：US18699122

申请日：2021-12-07

Applicant: QUALCOMM Incorporated

Inventor： Hui GUO ,  Shuanshuan WU ,  Kapil GULATI ,  Tien Viet NGUYEN

IPC: H04W72/40 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described. For example, devices of a wireless communications system may be configured to support various techniques for sidelink communications using an unlicensed spectrum, where such sidelink communications are coordinated at least in part by a network device, such as a base station or entity thereof. In some examples, a base station may determine to offload some sidelink communications to the unlicensed spectrum, which may be based on capability information, system channel loading, application priority, periodicity, or quality of service, among other criteria or combinations thereof. Based on such a determination to offload sidelink communications to the unlicensed spectrum, the base station may transmit an indication for one or more user equipments (UEs) to attempt to perform sidelink communications using the unlicensed spectrum (e.g., based on an evaluation of an availability of the unlicensed spectrum by a UE initiating sidelink transmissions).

公开(公告)号：US20240377497A1

公开(公告)日：2024-11-14

申请号：US18291898

申请日：2021-09-21

Applicant: QUALCOMM Incorporated

Inventor： Jing DAI ,  Chao WEI ,  Hui GUO ,  Hao XU

IPC: G01S5/02 ,  G01S5/00 ,  G01S5/06

Abstract: The position of a target user equipment (UE) is determined using a set of Reference Signal Time Difference (RSTD) measurements that includes at least three RSTD measurements generated at different times by the target UE. Each RSTD measurement is produced based on positioning reference signals (PRS) transmitted by a stationary anchor entity and corresponding PRS transmitted by a moving mobile anchor entity. At least two anchor-to-anchor receive-transmit (RxTx) time difference measurements are generated by an anchor entity, wherein each anchor-to-anchor RxTx time difference measurement is associated with the RSTD measurements, and there are fewer anchor-to-anchor RxTx time difference measurements than RSTD measurements. The position estimate of the target UE is determined based on the set of RSTD measurements and the at least two anchor-to-anchor RxTx time difference measurements.

公开(公告)号：US20240365363A1

公开(公告)日：2024-10-31

申请号：US18560344

申请日：2021-07-30

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Sourjya DUTTA ,  Gabi SARKIS ,  Kapil GULATI ,  Shuanshuan WU ,  Hui GUO

IPC: H04W72/542 ,  H04W72/25 ,  H04W72/40

CPC classification number: H04W72/542 ,  H04W72/25 ,  H04W72/40

Abstract: Methods, systems, and devices for wireless communications are described. User equipment (UE) may communicate sidelink coordination messages to indicate potential interference and select sidelink resources. For example, a first UE may transmit a sidelink coordination message to a second UE that includes a set of identifiers associated with a set of UEs. The second UE may select a first set of sidelink resources for a first sidelink communication with the first UE based on a reference signal received power (RSRP) of the sidelink coordination message and a reservation of a second set of sidelink resources for a second sidelink communication between the first UE and third UE of the set of UEs. For example, the second UE may determine the reservation, select the first set to be non-overlapping a time domain with the second set based on the RSRP, and perform the second sidelink communication with the first UE.

公开(公告)号：US20240357430A1

公开(公告)日：2024-10-24

申请号：US18685840

申请日：2021-10-29

Applicant: QUALCOMM Incorporated

Inventor： Sourjya DUTTA ,  Tien Viet NGUYEN ,  Hui GUO ,  Gabi SARKIS ,  Kapil GULATI

IPC: H04W28/20 ,  H04W72/25 ,  H04W76/14 ,  H04W76/15

CPC classification number: H04W28/20 ,  H04W72/25 ,  H04W76/14 ,  H04W76/15

Abstract: A user equipment (UE) can transmit first radio access information indicating a first ratio of first sidelink devices configured to use a first radio access technology (RAT) to second sidelink devices configured to use a second RAT. The UE can receive second radio access information from one or more sidelink devices of at least one of the first sidelink devices or the second sidelink devices. Each second radio access information indicates a respective second ratio of the first sidelink devices configured to use the first RAT to the second sidelink devices configured to use the second RAT. The UE can select a resource pool frame structure based on the first ratio and each of the respective second ratios, and the resource pool frame structure is configured to partition a resource pool between the first RAT and the second RAT for sidelink communication in a sidelink network.

公开(公告)号：US20240356679A1

公开(公告)日：2024-10-24

申请号：US18701142

申请日：2021-12-21

Applicant: QUALCOMM Incorporated

Inventor： Zhichao ZHOU ,  Seyedkianoush HOSSEINI ,  Chih-Ping LI ,  Amira ALLOUM ,  Mickael MONDET ,  Hui GUO

IPC: H04L1/1812 ,  H04L1/1829

CPC classification number: H04L1/1816 ,  H04L1/1848

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) of a group of UEs may receive a groupcast retransmission from one or more UEs of the group. For example, a base station may transmit a groupcast transmission to the group of UEs. A first UE of the group of UEs may fail to receive the groupcast transmission and, in response, may transmit a feedback message via a sidelink feedback resource to a second UE of the group of UEs. The feedback message may include a negative acknowledgement (NACK) that indicates the failed reception of the groupcast transmission by the first UE, and the sidelink feedback resource may be indicated by the base station. The second UE may transmit a retransmission of the groupcast transmission to the first UE via a sidelink resource based on receiving the feedback message.