公开(公告)号：US11722992B2

公开(公告)日：2023-08-08

申请号：US17187316

申请日：2021-02-26

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W76/11 ,  H04L1/1607 ,  H04W72/23

CPC classification number: H04W72/02 ,  H04L1/1614 ,  H04W72/23 ,  H04W76/11

Abstract: Certain aspects of the present disclosure provide a user equipment (UE) that may receive an indication of a proximity discovery resource in a physical sidelink feedback channel (PSFCH) symbol from a network entity. The UE may transmit a proximity discovery request including the indication of the proximity discovery resource. The UE may receive a PSFCH sequence associated with the proximity discovery resource from other UEs that may respond to the proximity discovery request. The UE may transmit a bit map sequence indicative of the other UEs to the network entity. The network entity may determine a proximity between the UE and the other UEs based on the bit map sequence. The network entity may schedule the UE and the other UEs based on the proximity.

公开(公告)号：US11690074B2

公开(公告)日：2023-06-27

申请号：US17321036

申请日：2021-05-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W72/23 ,  H04W72/0446 ,  H04W72/20

CPC classification number: H04W72/23 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/20

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support sidelink transmission resource aggregation for in-coverage new radio sidelink (NR SL) operations. In a first aspect, a method of wireless communication includes obtaining a sidelink aggregation factor identifying a number of sidelink resource slots available to a user equipment (UE) to add to each sidelink resource slot allocated in a grant of sidelink channel access from a serving base station. The UE may then receive a sidelink transmission grant identifying at least one granted sidelink resource slot, and determine an aggregated set of sidelink resource slots for each granted sidelink resource slot. The UE may then transmit sidelink communications using the aggregated set of sidelink resource slots for each granted sidelink resource slots used for the sidelink communications. Other aspects and features are also claimed and described.

公开(公告)号：US11690047B2

公开(公告)日：2023-06-27

申请号：US17343436

申请日：2021-06-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04L1/1812 ,  H04W72/0446 ,  H04W72/20

CPC classification number: H04W72/02 ,  H04L1/1819 ,  H04W72/0446 ,  H04W72/20

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for configuring, in a slot, a low-latency transport block (TB) occupying one or more first temporal resources, a non-low-latency TB occupying one or more second temporal resources different from the one or more first temporal resources, and control information occupying at least a portion of the one or more first temporal resources, wherein the low-latency TB and the non-low-latency TB are time division multiplexed, and transmitting the low-latency TB and the non-low-latency TB via a physical sidelink shared channel (PSSCH) and the control information via a physical sidelink control channel (PSCCH) to one or more peer UEs.

公开(公告)号：US20230147231A1

公开(公告)日：2023-05-11

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 ,  H04W72/04 ,  H04W72/10 ,  H04W88/18

CPC classification number: H04W72/02 ,  H04W72/0446 ,  H04W72/046 ,  H04W72/10 ,  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.

公开(公告)号：US11632775B2

公开(公告)日：2023-04-18

申请号：US17377205

申请日：2021-07-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W72/14 ,  H04W72/1268

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support managing allocation of configured grant (CG) resources for uplink transmissions using a polynomial over Galois field in a wireless communication system. In particular, a user equipment (UE) may be configured (e.g., by a base station) to determine a resource to access, from a resource pool configured for each CG occasion of a CG configuration, based on a polynomial over Galois field configured for the UE. The polynomial over Galois field may include a parameter p, and the UE may be configured with a mapping that maps the absolute time (e.g., a slot index or a symbol index) of a GC occasion to an index between 0 and p−1 that is used as input to the polynomial The result of the polynomial is used to determine the resource to access by the UE at the CG occasion.

公开(公告)号：US11611991B2

公开(公告)日：2023-03-21

申请号：US17305455

申请日：2021-07-07

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W28/26 ,  H04W72/04 ,  H04W4/10 ,  H04W72/044

Abstract: Wireless communications systems and methods related to frequency resource reservation for sidelink communication over a shared radio frequency band are provided. A first user equipment (UE) senses in a sidelink resource pool within a shared radio frequency band. The first UE reserves, based on the sensing, a frequency resource of the sidelink resource pool within an instance of a variable time range. The first UE performs, in the shared radio frequency band, one or more listen-before-talks (LBTs). The first UE transmits, to a second UE based on the one or more LBTs, a sidelink transmission using the frequency resource within the instance of the variable time range.

公开(公告)号：US11601177B2

公开(公告)日：2023-03-07

申请号：US17109412

申请日：2020-12-02

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun ,  Seyed Ali Akbar Fakoorian

IPC: H04B7/06 ,  H04L5/00 ,  H04B1/7143 ,  H04W24/10 ,  H04W8/00 ,  H04W84/12

Abstract: This disclosure provides systems, methods and apparatus for wireless communications in narrowband frequency bands using frequency hopping. In some implementations, a base station (BS) groups a plurality of hopping channels of a frequency hopping pattern into a number of groups based on a bandwidth part (BWP) hopping frequency of each hopping channel of the frequency hopping pattern. The BS transmits indications of the frequency hopping pattern and the grouping of hopping channels to user equipments (UEs). The BS transmits a channel state information reference signal (CSI-RS) on a first hopping channel, and receives channel state information (CSI) of the first hopping channel from one or more of the UEs. In some other implementations, a UE receives indications of the frequency hopping pattern and hopping channel groups, and determines CSI of the first hopping channel based on the received CSI-RS. The UE may transmit the CSI to the BS.

公开(公告)号：US20230007685A1

公开(公告)日：2023-01-05

申请号：US17943851

申请日：2022-09-13

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Xiaoxia Zhang ,  Srinivas Yerramalli ,  Chih-Hao Liu ,  Tamer Kadous

IPC: H04W74/08 ,  H04L27/26 ,  H04L5/00 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform a transmission detection procedure on each base station before combining control information. The UE may use demodulation reference signals (DMRS) as a detection mechanism. If the UE detects a DMRS from a base station, the UE may determine that a control resource set associated with the base station is valid for combining. If the UE does not detect DMRS from the base station, the UE may refrain from combining control information from the base station. In another example, base stations that pass a listen-before-talk (LBT) pr6ocedure may transmit a preamble before transmitting control information. A preamble may carry a preamble sequence associated with a specific control resource set. The UE may identify a preamble sequence and determine that the corresponding control resource set is valid for control information combining.

公开(公告)号：US11528718B2

公开(公告)日：2022-12-13

申请号：US17163797

申请日：2021-02-01

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu

IPC: H04W72/10 ,  H04W72/04 ,  H04W74/08 ,  H04W88/02 ,  H04W88/08 ,  H04W74/04

Abstract: Indication of transmission priority class is disclosed for sharing a base station's maximum channel occupancy time (MCOT) for use in autonomous uplink (AUL). Aspects of the disclosure provide for implicitly sharing the MCOT by providing an indication of transmission opportunity (TxOP) length. A serving base station sends an indication of a current TxOP length in control signals to a user equipment (UE). The UE may then infer a set of potential transmission priorities used by the serving base station according to the TxOP length, as TxOP length may relate to the MCOT, which itself may be associated with a particular transmission priority class. The UE may then, conservatively, select the highest transmission priority of the set of potential transmission priorities for autonomously transmitting any uplink data having at least the selected highest transmission priority within configured AUL resource of the current TxOP.

公开(公告)号：US20220353945A1

公开(公告)日：2022-11-03

申请号：US17243498

申请日：2021-04-28

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W76/28 ,  H04L1/18

Abstract: Wireless communications systems and methods related to discontinuous reception (DRX) extended-on operations and dynamic transmission patterns in sidelink are provided. A first user equipment (UE) determines a transmission pattern for a first sidelink based on an extended DRX on-duration associated with a second sidelink different from the first sidelink, wherein the first sidelink is between the first UE and a second UE, and wherein the second sidelink is between the second UE and a third UE. The first UE transmits, to the second UE over the first sidelink during the extended DRX on-duration based on the transmission pattern, a communication signal.