公开(公告)号：US11838911B2

公开(公告)日：2023-12-05

申请号：US17407857

申请日：2021-08-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/20 ,  H04L27/26 ,  H04W72/0446

CPC classification number: H04W72/20 ,  H04L27/2605 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive control signaling indicating multiple sidelink channels of a sidelink resource pool, a mapping between each sidelink channel of the multiple sidelink channels to a corresponding feedback channel of multiple feedback channels, and a time gap between sidelink channel transmission and feedback transmission with respect to a feedback channel sub-slot of multiple feedback channel sub-slots within a slot. Accordingly, the first wireless device may receive a sidelink data message on a first sidelink channel of the multiple sidelink channels and may transmit sidelink feedback information for the sidelink data message in the feedback channel sub-slot of the slot on a first feedback channel of the multiple feedback channels corresponding to the first sidelink channel. The described techniques may enable the first wireless device to transmit the sidelink feedback information with reduced latency and improved reliability.

公开(公告)号：US11825416B2

公开(公告)日：2023-11-21

申请号：US17091343

申请日：2020-11-06

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W52/0235 ,  H04L5/0012 ,  H04W52/0219 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/23

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for narrowband communications using frequency hopping. In some implementations, a user equipment (UE) may receive a discovery reference signal (DRS) including a skipping signal identifying one or more UEs, may stay on an anchor channel when the skipping signal identifies the UE, and may switch from the anchor channel to a first downlink (DL) hopping channel of a DL frequency hopping pattern when the signal does not identify the UE. In some other implementations, a base station (BS) may be configured to output a DRS including a skipping signal identifying one or more UEs, output a signal indicating a channel occupancy time (COT) obtained on a first DL hopping channel of a DL frequency hopping pattern, and output DL data on the first DL hopping channel of the DL frequency hopping pattern.

公开(公告)号：US11812458B2

公开(公告)日：2023-11-07

申请号：US17451417

申请日：2021-10-19

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/00 ,  H04W72/541 ,  H04W72/1263 ,  H04W74/08 ,  H04W72/0446

CPC classification number: H04W72/541 ,  H04W72/1263 ,  H04W74/0816 ,  H04W72/0446

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support relaxed sensing for new radio (NR) sidelink over millimeter wave (mmW) operating frequencies. In a first aspect, a method by a user equipment (UE) of wireless communication includes identifying a resource selection trigger that indicates selection of one or more sidelink slots from a resource selection window. The UE may obtain long-term interference sensing statistics observed by the UE prior to the resource selection trigger. The UE can reduce a default sensing window length in accordance with the long-term interference sensing statistics and transmit a sidelink transmission in the selected sidelink slots. Other aspects and features are also claimed and described.

公开(公告)号：US11751102B2

公开(公告)日：2023-09-05

申请号：US17303011

申请日：2021-05-18

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/26 ,  H04W74/04 ,  H04W72/04 ,  H04W72/0453 ,  H04W74/08

CPC classification number: H04W28/26 ,  H04W72/0453 ,  H04W74/0816

Abstract: Wireless communications systems and methods related to resource reservation for sidelink communication over a shared radio frequency band are provided. The method of wireless communication performed by a user equipment (UE) includes performing, in a shared radio frequency band, a listen-before-talk (LBT) for a first channel occupancy time (COT) and transmitting, during the first COT, a COT structure indicator, wherein the COT structure indicator reserves at least one resource within a second COT different than the first COT.

公开(公告)号：US20230276481A1

公开(公告)日：2023-08-31

申请号：US17592358

申请日：2022-02-03

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/08 ,  H04W72/02 ,  H04W72/04 ,  H04B7/0408

CPC classification number: H04W72/085 ,  H04B7/0408 ,  H04W72/02 ,  H04W72/0406 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. Aspects of the present disclosure provide for a user equipment (UE) performing contention-based access to utilize historical pathloss measurements to identify available resources for beamformed sidelink communications. The historical pathloss measurements may be obtained by the UE, by one or more other UEs, or both, where the UE may combine its own historical pathloss measurements with historical pathloss measurements obtained at the one or more other UEs. Such historical pathloss measurements may allow the UE to determine if one or more beam combinations associated with the resources may cause unacceptable interference (e.g., interference satisfying a threshold) while reducing signaling overhead associated with exchanges of inter-UE coordination messages. Accordingly, the UE may determine to yield transmissions over one or more resources or to yield reception to allow other UEs to utilize the one or more resources.

公开(公告)号：US11737142B2

公开(公告)日：2023-08-22

申请号：US17443241

申请日：2021-07-22

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu ,  Shuanshuan Wu ,  Peter Gaal ,  Ozcan Ozturk ,  Piyush Gupta

IPC: H04W74/08 ,  H04L1/1812 ,  H04W72/02 ,  H04W74/00 ,  H04W80/02

CPC classification number: H04W74/0816 ,  H04L1/1819 ,  H04W72/02 ,  H04W74/002 ,  H04W80/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select, for a sidelink transmission over an unlicensed band and associated with a medium access control (MAC) protocol data unit (PDU), one or more candidate resources of a set of candidate resources that are within an adaptive effective contention window (ECW). The UE may adjust at least one parameter of the adaptive ECW to determine an adjusted at least one parameter based at least in part on a channel access output associated with the one or more candidate resources. The UE may transmit the MAC PDU using the one or more candidate resources or an additional one or more candidate resources, wherein the additional one or more candidate resources are selected based at least in part on the adjusted at least one parameter. Numerous other aspects are provided.

公开(公告)号：US20230254895A1

公开(公告)日：2023-08-10

申请号：US17665270

申请日：2022-02-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04

CPC classification number: H04W74/0816 ,  H04W74/006 ,  H04W74/0866 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first downlink control information (DCI) message indicating a first listen-before-talk (LBT) grant for accessing a sidelink channel, the first DCI being associated with a first search space of the UE. The UE may then receive a second DCI message indicating a second LBT grant for accessing the channel or an uplink channel, the second DCI being associated with a second search space of the UE and including an activation trigger for the first LBT grant of the first DCI. The UE may then perform a first LBT procedure to access the sidelink channel in accordance with the first LBT grant during a first channel occupancy time (COT). The UE may further perform a second LBT procedure to access the uplink channel during the first COT.

公开(公告)号：US11722993B2

公开(公告)日：2023-08-08

申请号：US17209928

申请日：2021-03-23

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W72/02 ,  H04W76/27 ,  H04L27/26 ,  H04W72/0446 ,  H04W72/0453 ,  H04L1/1812 ,  H04W72/30 ,  H04W72/53

CPC classification number: H04W72/02 ,  H04L1/1819 ,  H04L27/2607 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/30 ,  H04W72/53 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may transmit, to a device, a request to transmit a sidelink message to a second UE. The first UE may receive, from the device and in response to the transmitted request, an indication of one or more configured sidelink resources allocated to the first UE. The configured sidelink resources may be allocated to the first UE from a pool of sidelink resources configured for a sensing-based channel access procedure. The UE may transmit the sidelink message to the second UE on at least one of the configured sidelink resources associated with the received indication.

公开(公告)号：US11700610B2

公开(公告)日：2023-07-11

申请号：US17177559

申请日：2021-02-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/00 ,  H04W72/21 ,  H04L5/00

CPC classification number: H04W72/21 ,  H04L5/0048

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive control signaling comprising an indication of a format for a channel state information report indicating channel state information for a sidelink channel between the first UE and a second UE. The first UE may determine the channel state information for the sidelink channel between the first UE and the second UE. The first UE may configure a layer one uplink control message to indicate the channel state information report according to the format. The first UE may transmit, based at least in part on the format, the layer one uplink control message to a base station indicating the channel state information report.

公开(公告)号：US11678276B2

公开(公告)日：2023-06-13

申请号：US17444034

申请日：2021-07-29

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Jing Sun ,  Xiaoxia Zhang ,  Yisheng Xue ,  Peter Gaal ,  Tao Luo ,  Jung Ho Ryu ,  Sony Akkarakaran ,  Lik Hang Silas Fong

IPC: H04B7/185 ,  H04W52/52 ,  H04W72/02 ,  H04J13/00 ,  H04W72/1263 ,  H04W72/0446

CPC classification number: H04W52/52 ,  H04J13/0029 ,  H04J13/0062 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/1263

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a user equipment (UE) may include mapping a power reservation signal of a sub-slot resource pool (RP) to an AGC symbol location of a slot RP and transmitting, to at least one other UE, the power reservation signal, wherein a transmit power level of the power reservation signal is based on an estimated transmit power level associated with at least one sub-slot.