公开(公告)号：US11483803B2

公开(公告)日：2022-10-25

申请号：US17247121

申请日：2020-11-30

Applicant: QUALCOMM INCORPORATED

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

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

Abstract: Wireless communications systems and methods related to autonomous sidelink communication are provided. A first user equipment (UE) communicates, in a first subband of a plurality of subbands within a shared radio frequency band during a first time period, first sidelink control information (SCI) associated with a second subband of the plurality of subbands. The first UE communicates, with the second UE, first sidelink data in the second subband during the first time period based on the first SCI. The first UE communicates, with the second UE in the first subband during a second time period, second SCI associated with a third subband of the plurality of subbands, the third subband being different from the second subband based on a frequency hopping pattern. The first UE communicates, with the second UE, second sidelink data in the third subband during the second time period based on the second SCI.

公开(公告)号：US20220279377A1

公开(公告)日：2022-09-01

申请号：US17249409

申请日：2021-03-01

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W28/02 ,  H04W72/02 ,  H04W72/14 ,  H04W72/12 ,  H04W72/04 ,  H04W80/02 ,  H04B7/06 ,  H04B7/0456

Abstract: Wireless communications systems and methods related to providing subchannel selection or recommendation and/or channel state information (CSI) for sidelink communications (e.g., operating in mode-1 radio resource allocation (RRA) via a buffer status report (BSR) are provided. A first user equipment (UE) transmits, to a base station (BS), a BSR indicating subchannel information associated with one or more UEs. The UE receives, from the BS in response to the BSR report, a grant for transmitting a first sidelink transmission to a second UE of the one or more UEs. The UE transmits, to the second UE based on the grant, the first sidelink transmission.

公开(公告)号：US20220264557A1

公开(公告)日：2022-08-18

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: H04W72/04 ,  H04L5/00

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：US20220232625A1

公开(公告)日：2022-07-21

申请号：US17151105

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may perform a first transmission to one or more receiving devices, the first transmission associated with a transmission type. The transmitting device may determine a feedback response for the first transmission based on monitoring for feedback messages from the one or more receiving devices in response to the first transmission. The transmitting device may select a contention window size for performing one or more subsequent transmissions based at least in part on the feedback response and the transmission type. The transmitting device may perform the one or more subsequent transmissions in accordance with a clear channel assessment procedure using the selected contention window size.

公开(公告)号：US11388728B2

公开(公告)日：2022-07-12

申请号：US16190927

申请日：2018-11-14

Applicant: QUALCOMM incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Weiliang Zeng ,  Tamer Kadous ,  Yongbin Wei

IPC: H04W72/08 ,  H04L5/00 ,  H04W74/08 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communications are described. A transmitter may identify a contention window for a no-energy-detection protocol for determining a channel availability for a data transmission. After the contention window expires, the transmitter may send a request message to a receiver. The receiver may measure a quality of the request message against a request threshold and transmit a response message if the measured quality exceeds the request threshold. The transmitter may then measure a quality of the response message against a response threshold. If the measured quality exceeds the response threshold, the transmitter may initiate a data transmission with the receiver. If the quality falls below the response threshold or the response message is not received, the transmitter may adjust the contention window and reattempt the no-energy-detection protocol. The contention window may also be adjusted based on an acknowledgement message received after the data transmission.

公开(公告)号：US11368875B1

公开(公告)日：2022-06-21

申请号：US17110521

申请日：2020-12-03

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/06 ,  H04W72/04 ,  H04W8/18 ,  H04L5/00 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support improved assignment techniques for dynamic group common physical control channels. In some cases, a user equipment (UE) may receive a control message via a group common control channel. The control message may be monitored by a plurality of UEs, and the control message may include one or more control information segments for a set of UEs of the plurality. The control message may include one or more integer values associated with respective control information segments and a prime number. The integer values and the prime number may be configured to address each UE of the set of UEs. The UE may process the prime number, the integer values, and an integer value that corresponds to an identifier (ID) of the UE to determine applicability of the control message to the UE.

公开(公告)号：US20220174711A1

公开(公告)日：2022-06-02

申请号：US17110216

申请日：2020-12-02

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Yisheng Xue ,  Jing Sun ,  Junyi Li ,  Piyush Gupta ,  Xiaoxia Zhang ,  Ozcan Ozturk

IPC: H04W72/12 ,  H04L12/26 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described to support resource selection for a sidelink transmission based on a priority of available resources. A physical (PHY) layer of a user equipment (UE) may report different subsets of available resources to a medium access control (MAC) layer. Each subset may be associated with a different priority and the MAC layer may use the subsets to select a resource for the sidelink transmission. The MAC layer may additionally or alternatively maintain a list of UE identifiers (IDs) and may provide the list of the UE IDs to the PHY layer for resource identification. The PHY layer may use the list to implement different reference signal parameters for UEs associated with the list of UE IDs than for other UEs. The PHY layer may report the set of available resources to the MAC layer, based on the list of UE IDs.

公开(公告)号：US20220159709A1

公开(公告)日：2022-05-19

申请号：US17099492

申请日：2020-11-16

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Juan Montojo ,  Ozcan Ozturk ,  Shuanshuan Wu

IPC: H04W74/00 ,  H04W72/04 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may receive a configuration of a set of feedback channel occasions corresponding to a first sidelink data channel in a first listen-before-talk (LBT) sub-band, the set of feedback channel occasions located over multiple LBT sub-bands of an unlicensed radio frequency spectrum band. The UE may receive a data transmission over the first sidelink data channel and may determine to transmit feedback associated with the data transmission. The UE, based on the configuration of the set of feedback channel occasions, may perform LBT for each of the set of feedback channel occasions to determine which of the set of feedback channel occasions are available to the UE for transmitting the feedback associated with the data transmission. The UE may transmit feedback over one or more of the set of feedback channel occasions accordingly.

公开(公告)号：US11337095B2

公开(公告)日：2022-05-17

申请号：US16734254

申请日：2020-01-03

Applicant: QUALCOMM Incorporated

Inventor： Weiliang Zeng ,  Sanaz Barghi ,  Pouriya Sadeghi ,  Supratik Bhattacharjee ,  Taesang Yoo ,  Xiaoxia Zhang ,  Yisheng Xue

IPC: H04W24/10 ,  H04W72/04 ,  H04B7/06 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a request that the UE report a predicted future channel state information measurement. Upon receiving the request, the UE may measure, during a first time period, a channel to obtain measured channel state information. The UE may then determine the predicted future channel state information for a second time period based on the measured channel state information. In some case, the second time period may be subsequent to the first time period. Upon determining the predicted future channel state information measurement, the UE may transmit, to the base station, a channel state information report. In some aspects, the channel state information report may be indicative of the predicted future channel state information measurement.

公开(公告)号：US20220095327A1

公开(公告)日：2022-03-24

申请号：US17474622

申请日：2021-09-14

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Yisheng Xue ,  Piyush Gupta ,  Jing Sun ,  Xiaoxia Zhang ,  Lik Hang Silas Fong

IPC: H04W72/12 ,  H04W28/26 ,  H04W24/08 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for a first user equipment (UE) to manage the reuse of resources reserved for sidelink communications by the UE. The first UE may identify scheduling information for a sidelink shared channel between the first UE and a second UE, and the first UE may reserve a set of resources for subsequent sidelink communications by the first UE. The first UE may transmit a sidelink control message indicating the scheduling information and the reserved resources to one or more neighboring UEs. The sidelink control message may include a reuse allowance indicator that may indicate whether the set of reserved resources is available for spatial reuse by the neighboring UEs. The neighboring UEs may determine whether the reuse the reserved resources based on the control message, the reuse allowance indicator, or both.