公开(公告)号：US12200501B2

公开(公告)日：2025-01-14

申请号：US17406804

申请日：2021-08-19

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Peter Gaal ,  Juan Montojo

IPC: H04W16/14 ,  H04W72/20 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described in which a first user equipment (UE) may transmit a first communication to a second UE during a first channel occupancy time (COT). The first UE may reserve resources of one or more subsequent COTs for one or more repetitions of the first communication. The reserved resources may be identified based at least in part on a two stage resource reservation, in which reserved resources are identified relative to a timing of the one or more subsequent COTs. Such a UE may first determine a timing of a second COT and may then determine a timing of the reserved resources based on the timing of the second COT. The reserved resources may be identified based at least in part on one or more offsets from a starting time of the second COT.

公开(公告)号：US12177843B2

公开(公告)日：2024-12-24

申请号：US17704910

申请日：2022-03-25

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang

IPC: H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described to support resource block (RB) grid alignment at user equipments (UE) in sidelink communications. In a first example, communicating UEs may support different RB grids and a receiving UE may attempt multiple decoding hypotheses for receiving a sidelink control channel from a transmitting UE, where each hypothesis may correspond to a different RB grid. In a second example, an RB grid for a sidelink control channel may be common, or aligned, for a transmitting UE and a receiving UE, such that the receiving UE may receive the sidelink control channel using the common RB grid. In a third example, demodulation reference signals (DMRSs) and resource element (RE) rate matching for a sidelink control channel may be common, or aligned, for a transmitting UE and a receiving UE, such that the receiving UE may receive the control channel using the aligned DMRSs.

公开(公告)号：US12160877B2

公开(公告)日：2024-12-03

申请号：US17226732

申请日：2021-04-09

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Chih-Hao Liu ,  Jing Sun ,  Xiaoxia Zhang ,  Sony Akkarakaran

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/51 ,  H04W76/23 ,  H04W88/06

Abstract: A user equipment (UE) includes a receiver configured to receive, during operation based on a first mode, a configuration message from a base station. The configuration message indicates sidelink resources associated with a sidelink data channel. The UE further includes a transmitter configured to transmit, based on detecting that one or more conditions associated with the configuration message are satisfied, and during operation based on a second mode, a sidelink message to a second UE via the sidelink data channel during an occasion associated with the sidelink resources.

公开(公告)号：US12127167B2

公开(公告)日：2024-10-22

申请号：US17459833

申请日：2021-08-27

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Lik Hang Silas Fong ,  Chih-Hao Liu ,  Jing Sun ,  Junyi Li ,  Tao Luo ,  Sony Akkarakaran

IPC: H04W72/04 ,  H04W4/46 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/12 ,  H04W72/20 ,  H04W72/56

CPC classification number: H04W72/02 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/56

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive a sidelink control indicator (SCI) from a second UE and selects resources and directions for communication. The SCI may include one or more resources and corresponding directions reserved by the second UE. The first UE may use the resources and directions indicated in the received SCI to select available resources with which to reserve forward direction transmissions, reverse direction transmissions, or both. For example, the first UE may avoid reserving resources and directions corresponding to the resources and directions indicated in the received SCI, or may reserve such resources despite receiving the SCI, such as if the received SCI has a relatively low reference signal received power (RSRP). The first UE may transmit an SCI indicating resources reserved by the first UE and associated directionalities.

公开(公告)号：US12114317B2

公开(公告)日：2024-10-08

申请号：US17158463

申请日：2021-01-26

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Shuanshuan Wu ,  Rajat Prakash ,  Sony Akkarakaran ,  Piyush Gupta

IPC: H04W72/23 ,  H04B7/06

CPC classification number: H04W72/23 ,  H04B7/0626

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmit (Tx) user equipment (UE) may receive, from a base station, downlink control information (DCI) that triggers sidelink channel state information (CSI) reporting from a receive (Rx) UE to the Tx UE. The Tx UE may transmit, to the Rx UE, a request for CSI based at least in part on the DCI received from the base station. The Tx UE may receive, from the Rx UE, a CSI report based at least in part on the request. The Tx UE may transmit, to the base station, the CSI report received from the Rx UE. Numerous other aspects are described.

公开(公告)号：US12096476B2

公开(公告)日：2024-09-17

申请号：US17445125

申请日：2021-08-16

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Peter Gaal ,  Tao Luo

IPC: H04W74/0816 ,  H04W72/02 ,  H04W72/0446 ,  H04W80/02 ,  H04W92/18

CPC classification number: H04W74/0816 ,  H04W72/02 ,  H04W72/0446 ,  H04W80/02 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine candidate resources on one or more physical sidelink shared channels (PSSCHs) that are clear for transmitting at least two transport blocks, based at least in part on sensing a plurality of subchannels on the one or more PSSCHs with respect to listen-before-talk completion instants for the at least two transport blocks. The UE may select, from among the candidate resources, transmit resources on the one or more PSSCHs for transmitting the at least two transport blocks such that the at least two transport blocks are transmitted in one of: different subchannels of a same slot, or contiguous slots of a same subchannel. The UE may transmit the at least two transport blocks in the transmit resources. Numerous other aspects are provided.

公开(公告)号：US12022435B2

公开(公告)日：2024-06-25

申请号：US17247066

申请日：2020-11-25

Applicant: QUALCOMM INCORPORATED

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Juan Montojo ,  Ozcan Ozturk ,  Sony Akkarakaran ,  Chih-Hao Liu ,  Piyush Gupta ,  Rajat Prakash

IPC: H04W72/02 ,  H04W28/02 ,  H04W72/21 ,  H04W72/51 ,  H04W72/542

CPC classification number: H04W72/02 ,  H04W28/0215 ,  H04W72/21 ,  H04W72/51 ,  H04W72/542

Abstract: Wireless communications systems and methods related to channel congestion estimations based on virtual collision metrics are provided. A user equipment (UE) may select a plurality of resources from a sidelink resource pool. The UE may request an evaluation of an availability of the plurality of resources and may receive an indication of the availability of the plurality of resources. The UE may further transmit, based on a virtual collision metric associated with the indication of the availability of the plurality of resources, a first sidelink transmission.

公开(公告)号：US12021613B2

公开(公告)日：2024-06-25

申请号：US16824971

申请日：2020-03-20

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Tamer Kadous

IPC: H04L5/00 ,  H04L1/00 ,  H04W4/70 ,  H04W16/14 ,  H04W72/21

CPC classification number: H04L1/0013 ,  H04L5/0055 ,  H04L5/0064 ,  H04W4/70 ,  H04W16/14 ,  H04W72/21 ,  H04L5/0007 ,  H04L5/0044

Abstract: Some techniques and apparatuses described herein may be used to avoid or reduce collisions between uplink data communications and uplink control communications for an enhanced machine-type communication user equipment (eMTC UE) operating in an unlicensed radio frequency spectrum band. Furthermore, some techniques and apparatuses may avoid such collision while still allowing efficient use of resources, such as by deferring the uplink data communication within a data segment, rate matching an uplink data communication around uplink control resources (e.g., cell-specific uplink control resources and/or UE-specific uplink control resources), puncturing the uplink data communication to avoid the uplink control resources, multiplexing uplink control information on an uplink data channel, and/or the like.

公开(公告)号：US12021593B2

公开(公告)日：2024-06-25

申请号：US17456074

申请日：2021-11-22

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Junyi Li ,  Piyush Gupta ,  Chih-Hao Liu ,  Xiaoxia Zhang ,  Jing Sun ,  Yisheng Xue

IPC: H04B7/06 ,  H04L1/00

CPC classification number: H04B7/0641 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0003

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may receive a configuration associated with reporting delta channel state information (CSI). The first wireless communication device may compute the delta CSI based at least in part on the configuration, the delta CSI indicating a difference between first CSI associated with a first connection and second CSI associated with a second connection, the first connection being between the first wireless communication device and a base station and the second connection being between the first wireless communication device and a second wireless communication device. The first wireless communication device may transmit, based at least in part on the configuration, a CSI report including an indication of the delta CSI and at least one of an indication of the first CSI or an indication of the second CSI. Numerous other aspects are described.

公开(公告)号：US12015998B2

公开(公告)日：2024-06-18

申请号：US17453693

申请日：2021-11-05

Applicant: QUALCOMM INCORPORATED

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu ,  Sony Akkarakaran

IPC: H04W72/02 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/56 ,  H04W88/18

CPC classification number: H04W72/02 ,  H04W72/0446 ,  H04W72/046 ,  H04W72/56 ,  H04W88/182

Abstract: Methods, systems, and devices for wireless communications are described. A first and second user equipment (UE) may perform a handshake procedure to establish a cooperation agreement designating one or more frequency and time resources which the first UE is to act as the proxy device for the second UE. For example, the first UE may receive a sidelink message directed to a second UE from a third UE. The first UE may determine to act as a proxy device for the second UE with respect to the sidelink message based on the sidelink message being received during a time resource designated for the first UE to act as the proxy device for the second UE. The first UE may proceed to transmit to the third UE feedback information associated with the sidelink message, and may transmit the sidelink message to the second UE on behalf of the third UE.