公开(公告)号：US12063687B2

公开(公告)日：2024-08-13

申请号：US17103837

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Lior Uziel ,  Michael Levitsky ,  Gideon Kutz ,  Assaf Touboul ,  Shay Landis ,  Cheol Hee Park ,  Ralph Akram Gholmieh ,  Chu-Hsiang Huang

IPC: H04W74/0808 ,  H04L1/1812 ,  H04W4/40

CPC classification number: H04W74/0825 ,  H04L1/1812 ,  H04W4/40

Abstract: A method includes cellular vehicle-to-everything (CV2X) allocation collision detection and reporting. An allocation collision detection module detects control channel allocations from transmitting user equipments (UEs) in each time period of a group of time periods. A quantity of detected control channel allocations is determined in each time period. A report is then built and transmitted to at least one of the transmitting UEs. The report indicates collisions in each time period, based on the quantity and a location of the detected control channels in each time period, as well as based on a type of UE interface.

公开(公告)号：US11765010B2

公开(公告)日：2023-09-19

申请号：US17074792

申请日：2020-10-20

Applicant: QUALCOMM Incorporated

Inventor： Lior Uziel ,  Guy Wolf

IPC: H04L27/26 ,  H04W4/40 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/20 ,  H04W92/18

CPC classification number: H04L27/2607 ,  H04W4/40 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/20 ,  H04W92/18

Abstract: Certain aspects of the present disclosure provide techniques for cyclic shift selection for physical sidelink control channel retransmissions. A method that may be performed by a first user equipment (UE) includes monitoring one or more sidelink control information (SCI) transmissions from one or more second UEs. The method generally includes determining, based on the one or more SCI, whether one or more collisions occur between one or more retransmissions of the one or more SCI transmissions by the one or more second UEs and a scheduled SCI transmission by the first UE. The method generally includes selecting a cyclic shift to use for the scheduled SCI transmission by the first UE based at least on the determination.

公开(公告)号：US20230239120A1

公开(公告)日：2023-07-27

申请号：US17583501

申请日：2022-01-25

Applicant: QUALCOMM Incorporated

Inventor： Lior Uziel ,  Guy Wolf

IPC: H04L5/00

CPC classification number: H04L5/0064 ,  H04L5/0048

Abstract: Methods, systems, and devices for notifying puncturing of a physical downlink shared channel (PDSCH) are described. In some examples, a user equipment (UE) may receive, from a base station, a first control message identifying a set of resources used for transmissions by the base station. The UE may receive a second control message that includes an indication of a procedure used by the base station for a collision between the set of resources and a downlink channel transmitted to the first UE by the base station. In some examples, the UE may receive and decode signals on the downlink channel according to the indicated procedure.

公开(公告)号：US11659383B2

公开(公告)日：2023-05-23

申请号：US17180596

申请日：2021-02-19

Applicant: QUALCOMM Incorporated

Inventor： Noam Zach ,  Guy Wolf ,  Sharon Levy ,  Ory Eger ,  Ori Ben Shahar ,  Lior Uziel ,  Assaf Touboul

IPC: H04W4/00 ,  H04W12/037 ,  H04W12/63 ,  H04W12/041 ,  H04L5/00

CPC classification number: H04W12/037 ,  H04L5/0055 ,  H04W12/041 ,  H04W12/63

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may communicate, with a second wireless device, a first set of messages of a first message type that are acknowledged according to an acknowledgement procedure. The first wireless device, the second wireless device, or both may select a first subset of messages of the first plurality of messages and a first subset of bits from each message of the first subset of messages based on the first set of messages being acknowledged and according to a sampling configuration common to both the first wireless device and the second wireless device. The first wireless device, the second wireless device, or both may generate a key using bit values of the first subset of bits from each message of the first subset of messages, encoding a message using the key, and communicate the encoded message.

公开(公告)号：US20230032326A1

公开(公告)日：2023-02-02

申请号：US17949382

申请日：2022-09-21

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Assaf Touboul ,  Ran Berliner ,  Shay Landis ,  Lior Uziel

IPC: H04L5/00 ,  H04W72/04 ,  H04B17/364

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine the subcarrier spacing and carrier frequency used by a user equipment (UE) for communicating with the base station. The base station may select a sounding reference signal (SRS) configuration for the UE that is based on the subcarrier spacing and carrier frequency used by the UE. The SRS configuration may define the temporal spacing between repetitions of the SRS. The base station may indicate the SRS configuration to the UE so that the UE transmits repetitions of the SRS according to the SRS configuration. The base station may measure the SRS repetitions from the UE to determine the Doppler frequency for the uplink channel. The base station may use the uplink Doppler frequency to select a demodulation reference signal (DMRS) configuration for the UE.

公开(公告)号：US20230007582A1

公开(公告)日：2023-01-05

申请号：US17366982

申请日：2021-07-02

Applicant: QUALCOMM Incorporated

Inventor： David Yunusov ,  Peer Berger ,  Lior Uziel ,  Shay Landis

IPC: H04W52/02 ,  H04W52/52 ,  H04W4/40

Abstract: Methods, systems, and devices for wireless communications are described. In a wireless communications system, a first user equipment (UE) may receive a message from a second UE via a set of one or more antennas, where a first symbol period and a second symbol period of the message include a duplicated signal, and the first symbol period is immediately prior to the second symbol period in a time domain. The first UE may calculate a correlation between first data included in the first symbol period and second data included in the second symbol period of the message for each antenna of the set of one or more antennas. In some cases, the first UE may power down at least one radio frequency chain based on the result of the calculated correlation satisfying a threshold value.

公开(公告)号：US11483112B2

公开(公告)日：2022-10-25

申请号：US16876449

申请日：2020-05-18

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Assaf Touboul ,  Ran Berliner ,  Shay Landis ,  Lior Uziel

IPC: H04L5/00 ,  H04W72/04 ,  H04B17/364

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine the subcarrier spacing and carrier frequency used by a user equipment (UE) for communicating with the base station. The base station may select a sounding reference signal (SRS) configuration for the UE that is based on the subcarrier spacing and carrier frequency used by the UE. The SRS configuration may define the temporal spacing between repetitions of the SRS. The base station may indicate the SRS configuration to the UE so that the UE transmits repetitions of the SRS according to the SRS configuration. The base station may measure the SRS repetitions from the UE to determine the Doppler frequency for the uplink channel. The base station may use the uplink Doppler frequency to select a demodulation reference signal (DMRS) configuration for the UE.

公开(公告)号：US11445529B2

公开(公告)日：2022-09-13

申请号：US16986048

申请日：2020-08-05

Applicant: QUALCOMM Incorporated

Inventor： Lior Uziel ,  Omri Mamo

IPC: H04W72/12 ,  H04W88/04 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive, from a second UE and on a first set of resources, a first control information associated with sidelink communication. The first UE may also receive, from the second UE and on a second set of resources, a first shared channel information associated with the sidelink communication. In some examples, the first UE may identify a third set of resources associated with a retransmission of the first control information and a fourth set of resources associated with a retransmission of the first shared channel information. The first UE may then transmit the retransmission of the first control information on the third set of resources and the retransmission of the first shared channel information on the fourth set of resources.

公开(公告)号：US11444720B2

公开(公告)日：2022-09-13

申请号：US16843804

申请日：2020-04-08

Applicant: QUALCOMM Incorporated

Inventor： Peer Berger ,  Shay Landis ,  Lior Uziel

IPC: H04W4/00 ,  H04L1/00 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. One or more UEs communicating over sidelink may indicate transmit and receive categories to other UEs. A first UE may receive, in a sidelink communication message, an indication of a receive category of a second wireless device. The first UE may then transmit a shared sidelink channel message to the second wireless device based on the receive category of the second wireless device. In another case, a first UE may receive, in a sidelink communication message, an indication of a transmit category of a second wireless device. The first wireless device may then compare the transmit category of the second wireless device with a receive category of the first wireless device. The first wireless device may determine whether to decode a shared sidelink channel message from the second UE based on the comparing.

公开(公告)号：US20170142754A1

公开(公告)日：2017-05-18

申请号：US15170332

申请日：2016-06-01

Applicant: QUALCOMM Incorporated

Inventor： Lior Uziel ,  Guy Wolf ,  Shmuel Vagner ,  Yaniv Levi Elgarisi

IPC: H04W74/08 ,  H04W76/04 ,  H04W72/08 ,  H04W72/12 ,  H04W16/14 ,  H04L1/16

CPC classification number: H04W74/0808 ,  H04L1/16 ,  H04W16/14 ,  H04W72/082 ,  H04W72/1273 ,  H04W74/0816 ,  H04W76/28

Abstract: Methods, systems, and devices for wireless communication are described. A base station may support layer-to-layer listen-before-talk (LBT) interfacing for logical discontinuous transmission (DTX) events. That is, a layer one entity of the base station may indicate to a higher layer that a channel is unavailable or experiencing high levels of interference. For example, a layer one entity of the base station may perform a failed clear channel assessment (CCA) or LBT procedure on the channel. The layer one entity may then convey an indication that a scheduled message was not successfully transmitted to a higher layer (e.g., a media access control (MAC) layer that performs link adaptation and scheduling). The higher layer may schedule a retransmission of the message based on the indication. In some cases, the same link parameters may be used. In other cases, the link parameters may be updated based on channel conditions.