公开(公告)号：US20200252923A1

公开(公告)日：2020-08-06

申请号：US16746304

申请日：2020-01-17

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Makesh Pravin John Wilson ,  Sungwoo Park ,  Wooseok Nam

IPC: H04W72/04 ,  H04W74/08 ,  H04W48/08 ,  H04B7/06 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently identifying a receive beam for performing a listen before talk (LBT) procedure in an attempt to gain access to a transmission opportunity (TxOP) in a shared radio frequency spectrum. In particular, a wireless device may select a receive beam that corresponds to one or more transmit beams to be used in a TxOP to perform an LBT procedure in an attempt to gain access to the TxOP. In one example, the wireless device may select a receive beam for performing an LBT procedure based on the energy of each of the transmit beams to be used in a TxOP. In another example, the wireless device may select a receive beam for performing an LBT procedure if the receive beam is quasi co-located with each of the transmit beams to be used in a TxOP.

公开(公告)号：US12177845B2

公开(公告)日：2024-12-24

申请号：US18335871

申请日：2023-06-15

Applicant: QUALCOMM Incorporated

Inventor： Zhifei Fan ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Wooseok Nam ,  Sungwoo Park ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Akula Reddy

IPC: H04W72/20 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/0453

Abstract: In an aspect, a PDCCH and a PDSCH are transmitted by a BS to a UE, whereby the PDCCH includes a first DCI part and the PDSCH includes a second DCI part (e.g., a 2-part DCI). In an example a first grant associated with the second DCI part is offset relative to a slot position of the second DCI part, whereas a second grant associated with the second DCI part is offset relative to the slot position to which the first grant is offset. In another aspect, two or more grants are grouped together, with the respective group being mapped to a PUCCH.

公开(公告)号：US12081304B2

公开(公告)日：2024-09-03

申请号：US17239303

申请日：2021-04-23

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Wooseok Nam ,  Tianyang Bai ,  Sungwoo Park ,  Tao Luo ,  Junyi Li

IPC: H04B7/06 ,  H04B7/0408 ,  H04W24/10

CPC classification number: H04B7/0695 ,  H04B7/0408 ,  H04B7/0617 ,  H04W24/10

Abstract: Certain aspects of the present disclosure provide a method for performing beam measurements in a wireless communication network, including: performing a measurement of a first beam from a first transmission and reception point (TRP) of a network; performing a measurement of a second beam from a plurality of TRPs of the network; applying a biasing factor to one of the measurement of the first beam or the measurement of the second beam based on a beam preference setting; and transmitting, to the network, a measurement report including: indications of the first beam and second beam to which the measurement report pertains; and the measurement of the first beam and the measurement of the second beam after applying the biasing factor.

公开(公告)号：US12069613B2

公开(公告)日：2024-08-20

申请号：US17321871

申请日：2021-05-17

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Wooseok Nam ,  Tao Luo ,  Mostafa Khoshnevisan

IPC: H04W72/02 ,  H04W8/24 ,  H04W72/044 ,  H04W72/23 ,  H04W72/566

CPC classification number: H04W72/02 ,  H04W8/24 ,  H04W72/046 ,  H04W72/23 ,  H04W72/569

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may prioritize a transmission scheme for a transmission configuration indication (TCI) state for receiving a downlink message from one or more transmission reception points (TRPs). The UE may receive a downlink control message via a first carrier that schedules a downlink signal for the UE via a second carrier. The UE may select one or more TCI states for reception of the downlink signal based at least in part on the prioritization of the first transmission scheme. The UE may receive the downlink signal via the second carrier in accordance with the selected one or more TCI states.

公开(公告)号：US11997664B2

公开(公告)日：2024-05-28

申请号：US16952946

申请日：2020-11-19

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Tao Luo ,  Wooseok Nam ,  Sungwoo Park ,  Kiran Venugopal ,  Jung Ho Ryu ,  Junyi Li

IPC: H04W72/044 ,  H04B7/0413

CPC classification number: H04W72/046 ,  H04B7/0413

Abstract: Discussed is wireless communication that includes beam failure detection and recovery for high priority or broadcast CORESETs performed in wireless communication systems to effectuate an overall improvement in wireless communication. In some aspects, a mobile device may monitor one or more first reference signals associated with wireless communication performed using one or more first reception beams. The mobile device may also monitor one or more second reference signals associated with wireless communication performed using one or more second reception beams. The mobile device may detect a failure in wireless communication performed using the one or more first reception beams based, at least in part, on the monitoring of the one or more first reference signals. The mobile device may also initiate a beam failure recovery procedure for the one or more first reception beams upon detecting the failure in wireless communication performed using the one or more first reception beams.

公开(公告)号：US11889481B2

公开(公告)日：2024-01-30

申请号：US17585304

申请日：2022-01-26

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo ,  Srinivas Yerramalli ,  Kaushik Chakraborty ,  Arumugam Chendamarai Kannan ,  Sungwoo Park ,  Wooseok Nam ,  Juan Montojo

IPC: H04W72/04 ,  H04W72/044

CPC classification number: H04W72/044

Abstract: Aspects described herein relate to resource block allocation for time domain single-carrier waveform processing in new radio (NR). Specifically, in an aspect, a guard band may be allocated for a single-carrier waveform in a time or frequency domain. In another aspect, a resource block may be allocated for a time domain single-carrier waveform.

公开(公告)号：US11882462B2

公开(公告)日：2024-01-23

申请号：US17169290

申请日：2021-02-05

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Wooseok Nam ,  Sungwoo Park

IPC: H04W24/02 ,  H04B17/318

CPC classification number: H04W24/02 ,  H04B17/318

Abstract: Methods, systems, and devices for wireless communications are described for joint communications among a UE and multiple transmission-reception points (TRPs) in which a subset of the multiple TRPs transmit periodic tracking reference signals (TRSs) for use in measurement and beam management at the UE and the multiple TRPs. The subset of TRPs may include TRPs having a relatively large contribution to signals received at the UE, and may transmit periodic (or semi-persistent) TRSs to be measured at the UE. One of the TRPs may provide configuration information to the UE of which TRPs are included in the subset of TRPs, or the UE may determine which TRPs are included in the subset of TRPs based on a signal quality of transmissions associated with each TRP.

公开(公告)号：US11856587B2

公开(公告)日：2023-12-26

申请号：US17819731

申请日：2022-08-15

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Makesh Pravin John Wilson ,  Tao Luo ,  Jing Sun ,  Xiaoxia Zhang ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Mostafa Khoshnevisan

IPC: H04W72/04 ,  H04W72/23 ,  H04L5/00 ,  H04L1/1812 ,  H04W72/044

CPC classification number: H04W72/23 ,  H04L1/1812 ,  H04L5/0048 ,  H04L5/0007 ,  H04W72/0466

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a first transmit receive point (TRP), a downlink control information (DCI) communication, the UE being included in a multi-TRP configuration with the first TRP and a second TRP. The UE may determine information unique to the first TRP. The information unique to the first TRP may be at least one of associated with the DCI communication or included in the DCI communication. The UE may generate a downlink scrambling sequence initialization code, associated with the first TRP, based at least in part on the information unique to the first TRP. The UE may generate a downlink scrambling sequence, associated with the first TRP, based at least in part on the downlink scrambling sequence initialization code associated with the first TRP. Numerous other aspects are provided.

公开(公告)号：US11812454B2

公开(公告)日：2023-11-07

申请号：US17320092

申请日：2021-05-13

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Wooseok Nam ,  Kiran Venugopal ,  Sungwoo Park ,  Tao Luo ,  Junyi Li

IPC: H04W72/53 ,  H04W72/0446 ,  H04W72/044 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04W72/046 ,  H04W72/0446 ,  H04W72/23

Abstract: A user equipment (UE) receives a configuration from a base station for receiving multiple repetitions of a transmission in a slot aggregation. The UE receives an indication indicating one or more beams used for the multiple repetitions of the transmission. The UE receives a first repetition of the transmission in a first slot based on single frequency network (SFN) operation using at least one configuration that is different from a configuration used for receiving a second repetition in a second slot based on non-SFN operation. The UE optionally determines, based on the indication, whether repetitions within the multiple repetitions of the transmission are transmitted by the base station based on the SFN operation or the non-SFN operation.

公开(公告)号：US11800376B2

公开(公告)日：2023-10-24

申请号：US17343390

申请日：2021-06-09

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Wooseok Nam ,  Tao Luo ,  Junyi Li ,  Juan Montojo ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Taesang Yoo ,  Simone Merlin ,  Srinivas Yerramalli

IPC: H04W16/28 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04W16/28 ,  H04L5/0048 ,  H04W24/10

Abstract: Disclosed are techniques for environment sensing. In an aspect, a first network node measures one or more first reference signals on a first carrier frequency, the one or more first reference signals received from a second network node to enable determination of one or more first characteristics associated with one or more target objects, and measures one or more second reference signals on a second carrier frequency, the one or more second reference signals received from the second network node to enable determination of one or more second characteristics associated with the one or more target objects, wherein an accuracy of the one or more second characteristics is higher than an accuracy of the one or more first characteristics based on the one or more first reference signals being measured on the first carrier frequency and the one or more second reference signals being measured on the second carrier frequency.