公开(公告)号：US11647539B2

公开(公告)日：2023-05-09

申请号：US17170232

申请日：2021-02-08

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W74/08

CPC classification number: H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive a clear channel assessment trigger from a second wireless device, the clear channel assessment trigger associated with a data transmission by the second wireless device. The first wireless device may transmit, based at least in part on a result of a first clear channel assessment procedure, feedback information for the clear channel assessment trigger. The first wireless device may receive the data transmission based at least in part on the feedback information for the first clear channel assessment procedure. The first wireless device may transmit, based at least in part on a result of a second clear channel assessment procedure, feedback information for the data transmission, wherein the first clear channel assessment procedure has a first duration that is longer than a second duration for the second clear channel assessment procedure.

公开(公告)号：US11647504B2

公开(公告)日：2023-05-09

申请号：US16719937

申请日：2019-12-18

Applicant: QUALCOMM incorporated

Inventor： Mostafa Khoshnevisan ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W4/00 ,  H04W72/04 ,  H04L1/1867 ,  H04W72/044

CPC classification number: H04W72/0413 ,  H04L1/1887 ,  H04W72/042 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications that support physical uplink control channel (PUCCH) carrying hybrid automatic repeat request (HARQ-A) for multiple transmission reception point (multi-TRP) environments with non-ideal backhaul links are described. A user equipment (UE) may support multiple communication links with TRPs and receive distinct physical downlink control channel (PDCCH) messages that include downlink control information (DCI). The DCI may include a timing or resource indication index values for physical uplink control channel (PUCCH) transmission. Based on the index values, the UE may differentiate the received DCI indications. The UE may then schedule PUCCH transmissions, including hybrid automatic repeat request (HARQ) payloads, directed to the TRPs. In some examples, the scheduling may include mapping the PUCCH transmissions to resources or resource groups in configured PUCCH resource set. The UE may then transmit the PUCCH messages via one or more determined beams based on the indication index values.

公开(公告)号：US11646912B2

公开(公告)日：2023-05-09

申请号：US17404828

申请日：2021-08-17

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Junyi Li ,  Tianyang Bai ,  Xiaojie Wang ,  Xiaoxia Zhang ,  Jing Sun ,  Peter Gaal ,  Juan Montojo ,  Piyush Gupta ,  Wooseok Nam ,  Mahmoud Taherzadeh Boroujeni ,  Hua Wang ,  Lik Hang Silas Fong ,  Yan Zhou

IPC: H04L25/02 ,  H04W52/52 ,  H04W52/54

CPC classification number: H04L25/0222 ,  H04W52/52 ,  H04W52/54

Abstract: Apparatus, methods, and computer-readable media for facilitating phase jump estimation for SL DMRS bundling are disclosed herein. An example method includes receiving, from another device, first information at a first symbol of a first slot, the first slot including at least the first symbol and a first reference signal. The example method also includes receiving second information at a second symbol of a second slot, the second slot including at least the second symbol and a second reference signal, the first information and the second information being repetitions. The example method also includes generating a first reference signal copy based at least on the second reference signal and a phase jump between the first slot and the second slot. Additionally, the example method includes performing channel estimation across the first slot and the second slot based on an aggregation of the first reference signal and the first reference signal copy.

公开(公告)号：US20230135581A1

公开(公告)日：2023-05-04

申请号：US17452979

申请日：2021-10-29

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L5/00 ,  H04W72/04

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a first sidelink user equipment (UE) may include transmitting, to a second sidelink UE, at least one channel state information reference signal (CSI-RS) in a slot and transmitting, to the second sidelink UE, at least one sidelink synchronization signal block (S-SSB) in the slot, wherein an occupied channel bandwidth (OCB) associated with the slot satisfies a threshold based at least on the transmitting the at least one CSI-RS and the transmitting the at least one S-SSB.

公开(公告)号：US20230133900A1

公开(公告)日：2023-05-04

申请号：US17518403

申请日：2021-11-03

Applicant: QUALCOMM Incorporated

Inventor： Qian Zhang ,  Yan Zhou ,  Jing Sun ,  Tao Luo ,  Junyi Li ,  Navid Abedini

IPC: H04W72/12 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify an applicable restricted resource scheduling rule for restricting full-duplex operation on a first set of resources. The base station may transmit one or more control messages scheduling one or more full-duplex communications on a second set of resources based on the applicable restricted resource scheduling rule for restricting full-duplex operation on the first set of resources. In some examples, the second set of resources may overlap in time with the first set of resources. In other examples, the second set of resources may not overlap with the first set of resources in time or frequency. Accordingly, the base station may communicate the one or more full-duplex communications on the second set of resources. The described techniques may enable the base station to perform full-duplex communications with reduced interference and improved reliability.

公开(公告)号：US11641259B2

公开(公告)日：2023-05-02

申请号：US17303178

申请日：2021-05-21

Applicant: QUALCOMM Incorporated

Inventor： Yitao Chen ,  Mostafa Khoshnevisan ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04L5/00 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/1268 ,  H04W72/23

Abstract: In one aspect, an apparatus of wireless communication at a user equipment includes receiving, during a radio resource control (RRC) setup, a sounding reference signal (SRS) resource set configuration including a specified time offset x. The UE may receive downlink control information (DCI) in a later time slot and an instruction to trigger the SRS resource set. The UE determines, based on information from the SRS configuration or the DCI, a starting position within a time slot for transmitting an SRS resource. The UE transmits, at the starting position x slots after the later time slot, a reference SRS resource selected from the SRS resource set, followed sequentially by the remaining resources. In another aspect a UE that receives a t value of multiple t values may transmit the reference resource in a (t+1)th time slot from a reference slot.

公开(公告)号：US20230132170A1

公开(公告)日：2023-04-27

申请号：US17904086

申请日：2021-02-20

Applicant: QUALCOMM Incorporated

Inventor： Fang Yuan ,  Mostafa Khoshnevisan ,  Wooseok Nam ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04B7/0404 ,  H04B7/0417 ,  H04B7/0426 ,  H04L5/00

Abstract: An apparatus for wireless communication includes a memory and one or more processors coupled to the memory. The one or more processors are configured to determine a plurality of pre-coders available for uplink transmissions and to select a particular pre-coder from among the plurality of pre-coders. The one or more processors are further configured to initiate encoding of an uplink signal based on the particular pre-coder to generate a pre-coded uplink signal. The pre-coded uplink signal has one or more characteristics that enable a base station to identify the particular pre-coder. The one or more processors are further configured to initiate transmission of the pre-coded uplink signal.

公开(公告)号：US11638284B2

公开(公告)日：2023-04-25

申请号：US17144990

申请日：2021-01-08

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Junyi Li ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W72/12 ,  H04L1/00 ,  H04L5/14 ,  H04W88/06 ,  H04W72/1268

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications networks, a first wireless device may transmit sidelink control information to a second wireless device, which includes a first scheduling for an uplink transmission by a second wireless device during a first slot. The second wireless device may decode the sidelink control information to determine an operating mode of the first wireless device during the first slot, such as a transmitting mode or a receiving mode. Based on the operating mode, the second wireless device may drop or delay the uplink transmission. In some cases, the first wireless device may schedule an uplink transmission to be performed by the second wireless device during a second slot, and the first wireless device may switch from a transmitting mode to a receiving mode in order to receive the scheduled uplink transmission from the second wireless device.

公开(公告)号：US11638243B2

公开(公告)日：2023-04-25

申请号：US17093466

申请日：2020-11-09

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Jing Sun ,  Mostafa Khoshnevisan ,  Srinivas Yerramalli ,  Tao Luo

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/1273

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive single downlink control information (DCI) that indicates resources for a plurality of transmission configuration indicator (TCI) states for transmitting or receiving communications in a plurality of transmission time intervals (TTIs). The UE may transmit or receive the communications in the plurality of TTIs in accordance with the DCI. Numerous other aspects are provided.

公开(公告)号：US20230117182A1

公开(公告)日：2023-04-20

申请号：US17451076

申请日：2021-10-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/26 ,  H04L5/00

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support a super slot configuration for new radio (NR) sidelink over millimeter wave (mmW) operating frequencies. In a first aspect, a method of wireless communication by a user equipment (UE) includes obtaining a sidelink resource pool configuration including configuration of one or more super slots, wherein each super slot includes a plurality of slots contiguous in a time domain The UE may select one or more sidelink resource slots for sidelink transmissions in a sidelink resource pool and transmit an enhanced sidelink control information (eSCI) message in a first slot of a first super slot, wherein the eSCI message indicates a reservation of slots corresponding to the one or more sidelink resource slots. The UE may then send the sidelink transmissions on at least one slot of the reserved slots. Other aspects and features are also claimed and described.