公开(公告)号：US12160887B2

公开(公告)日：2024-12-03

申请号：US17563991

申请日：2021-12-28

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Yan Zhou ,  Heechoon Lee ,  Peter Pui Lok Ang ,  Alexandros Manolakos

IPC: H04W74/0808 ,  H04W16/14 ,  H04W56/00 ,  H04W72/23

Abstract: Various aspects of the disclosure relate to use of a default communication configuration for cross carrier wireless communication. For example, a wireless communication device such as a user equipment (UE) may use a default communication configuration that includes quasi-colocation information (e.g., a default CORESET configuration) for communication on a secondary component carrier (SCC). The default communication configuration may be used, for example, in scenarios where a CORESET is not defined for the SCC and other configuration information is not available. For example, other configuration information might not be available due to a short time gap between a grant sent on a primary component carrier (PCC) and the communication on the SCC scheduled by the grant.

公开(公告)号：US12114291B2

公开(公告)日：2024-10-08

申请号：US16184771

申请日：2018-11-08

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Jing Sun ,  Alexandros Manolakos ,  Wanshi Chen ,  Heechoon Lee ,  Juan Montojo ,  Peter Gaal

IPC: H04W72/04 ,  H04J1/16 ,  H04L1/00 ,  H04L5/00 ,  H04W8/00 ,  H04W72/0446 ,  H04W72/12 ,  H04W76/27 ,  H04W72/0453 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W72/04 ,  H04L1/0071 ,  H04L5/0044 ,  H04L5/0094 ,  H04W76/27 ,  H04L5/0007 ,  H04W72/0453 ,  H04W88/02 ,  H04W88/08

Abstract: Certain aspects of the present disclosure relate to methods and apparatus mapping virtual resource blocks (VRBs) to physical resource blocks (PRBs) and using the mapping in wireless communications, for example, in new radio (NR) technologies. An exemplary method includes determining a first interleaved mapping that maps a first interleaving unit of N consecutive first virtual resource blocks (VRBs) to N consecutive first physical resource blocks (PRBs), wherein each first PRB comprises a set of frequency resources during a period, transmitting a first grant allocating the first interleaving unit of first VRBs to a first user equipment (UE), and communicating with the first UE via the first PRBs mapped to the first VRBs of the first interleaving unit.

公开(公告)号：US12047930B2

公开(公告)日：2024-07-23

申请号：US16663297

申请日：2019-10-24

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Prashanth Haridas Hande ,  Wanshi Chen ,  Juan Montojo ,  Heechoon Lee ,  Huilin Xu ,  Hung Dinh Ly

IPC: H04W72/044 ,  H04L5/00 ,  H04W24/08 ,  H04W56/00 ,  H04W72/23 ,  H04W74/08 ,  H04W74/0833 ,  H04W80/02

CPC classification number: H04W72/046 ,  H04L5/0092 ,  H04W24/08 ,  H04W56/001 ,  H04W72/23 ,  H04W74/0833 ,  H04W80/02

Abstract: Certain aspects of the present disclosure provide techniques that may allow a base station and user equipment (UE) to be in agreement on spatial quasi co-location (QCL) assumptions for transmission in certain scenarios. The techniques may be used, for example, to determine QCL assumptions for downlink transmissions sent in an initial control resource set (CORESET) on an initial downlink bandwidth part (BWP) where dedicated signaling of such assumptions may be lacking. In some cases, the techniques may involve a UE determining a beam to use for monitoring for a physical downlink control channel (PDCCH) transmission on the initial CORESET in the initial downlink BWP that lacks dedicated signaling of QCL information and monitoring for the PDCCH on the initial CORESET in the initial BWP using the determined beam. Other aspects and features are also claimed and described.

公开(公告)号：US12047180B2

公开(公告)日：2024-07-23

申请号：US18335981

申请日：2023-06-15

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Wanshi Chen ,  Yi Huang ,  Heechoon Lee ,  Tingfang Ji ,  Peter Gaal ,  Jing Jiang

IPC: H04L1/1812 ,  H04L5/00

CPC classification number: H04L1/1812 ,  H04L5/0055

Abstract: Wireless communications systems and methods related to hybrid automatic repeat request (HARQ) history feedbacks are provided. A user equipment (UE) receives one or more data blocks associated with a plurality of hybrid automatic repeat request (HARQ) processes. The UE may transmit an individual feedback for each of the one or more data blocks indicating whether the data block is received successfully. The UE may transmit a feedback history report for a set of HARQ processes less than all of the plurality of HARQ processes.

公开(公告)号：US11974321B2

公开(公告)日：2024-04-30

申请号：US16282614

申请日：2019-02-22

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Navid Abedini ,  Heechoon Lee ,  Tao Luo

IPC: H04W74/08 ,  H04B7/0413 ,  H04L5/00 ,  H04L27/26 ,  H04W24/08 ,  H04W56/00 ,  H04W72/04 ,  H04W72/044 ,  H04W72/14 ,  H04W72/23 ,  H04W74/0833 ,  H04W80/02

CPC classification number: H04W74/0833 ,  H04L5/0051 ,  H04L27/2602 ,  H04L27/2666 ,  H04W24/08 ,  H04W56/001 ,  H04W72/046 ,  H04W72/23 ,  H04W80/02 ,  H04B7/0413 ,  H04L27/26025

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a random access (RACH) procedure based on a selected synchronization signal block (SSB). During this RACH procedure, a base station may transmit physical downlink control channel (PDCCH) messages for UE RACH message handling. To receive PDCCH signaling for RACH Messages 2, 3, or 4 (Msg 2/3/4), the UE may identify a set of time resources used by the base station for transmitting SSBs that are not quasi-co-located (QCL) with the selected SSB. The UE may identify a Msg 2/3/4 search space that does not overlap with this identified set of resources, and may monitor this identified search space. The search space may correspond to a modified remaining minimum system information (RMSI) search space indicated by the base station, or a valid RMSI search space not indicated by the base station.

公开(公告)号：US11950273B2

公开(公告)日：2024-04-02

申请号：US18174765

申请日：2023-02-27

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Jing Jiang ,  Chih-Ping Li ,  Seyedkianoush Hosseini ,  Heechoon Lee

IPC: H04W72/542 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/1268 ,  H04W72/23 ,  H04W72/566 ,  H04W76/20

CPC classification number: H04W72/542 ,  H04L5/0053 ,  H04W72/0446 ,  H04W72/1268 ,  H04W72/23 ,  H04W72/566 ,  H04W76/20

Abstract: Methods, systems, and devices for wireless communication are described. In one example, a base station may dynamically configure a user equipment (UE) to monitor or avoid monitoring for a preemption indication. Accordingly, the UE may have a lower chance of monitoring for a preemption indication when it is unlikely that an uplink or downlink transmission will be preempted. In another example, a base station may transmit a control message indicating whether future indications received from the base station are to be interpreted as preemption indications or permission indications. Accordingly, the base station may choose to use either preemption indications or permission indications (e.g., based on the probability of collisions between mobile broadband (MBB) and low latency transmissions) to facilitate MBB and low latency communication multiplexing with limited signaling.

公开(公告)号：US11792716B2

公开(公告)日：2023-10-17

申请号：US17202107

申请日：2021-03-15

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Peter Pui Lok Ang ,  Heechoon Lee ,  Sumeeth Nagaraja ,  Sony Akkarakaran

IPC: H04L27/26 ,  H04W48/08 ,  H04W64/00 ,  H04L25/02 ,  H04L5/00 ,  H04L1/1607 ,  H04W28/20 ,  H04W72/0453

CPC classification number: H04W48/08 ,  H04L1/1657 ,  H04L5/0048 ,  H04L5/0051 ,  H04L25/0224 ,  H04L27/2657 ,  H04W28/20 ,  H04W64/003 ,  H04L27/2602 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may be configured to transition to communicating on a first bandwidth part from communicating on a second bandwidth part. In order to ensure that the UE is able to perform receiver processing for demodulating data received on the first bandwidth part, after transitioning to communicating on the first bandwidth part, the UE may be configured to perform receiver processing using reference signals received on the second bandwidth part. That is, for a configured period of time, before the UE is able to perform receiver processing for demodulating data received on the first bandwidth part using reference signals received on the first bandwidth part, the UE may perform receiver processing for demodulating data received on the first bandwidth part using reference signals received on the second bandwidth part.

公开(公告)号：US11778574B2

公开(公告)日：2023-10-03

申请号：US17491400

申请日：2021-09-30

Applicant: QUALCOMM INCORPORATED

Inventor： Kazuki Takeda ,  Changhwan Park ,  Heechoon Lee ,  Alberto Rico Alvarino ,  Peter Gaal ,  Juan Montojo ,  Wanshi Chen ,  Tao Luo ,  Olufunmilola Omolade Awoniyi-Oteri

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04W56/001 ,  H04L5/0051 ,  H04W72/23

Abstract: Systems, methods, and devices for secondary cell activation using temporary reference signals are provided. In one aspect, a method of wireless communication performed by a user equipment (UE), includes receiving, from a base station (BS) via a first cell, an activation command to activate a second cell different from the first cell, and receiving, from the BS via the second cell during an activation period, a first reference signal different from a synchronization signal block (SSB). The method further includes performing a measurement of the first reference signal, and operating in the second cell based on the measurement. In some aspects, using reference signals different from SSBs may reduce the delay associated with activating the secondary cell.

公开(公告)号：US11777679B2

公开(公告)日：2023-10-03

申请号：US17698720

申请日：2022-03-18

Applicant: QUALCOMM Incorporated

Inventor： Hung Ly ,  Tingfang Ji ,  Heechoon Lee ,  Haitong Sun ,  John Edward Smee

IPC: H04L5/00 ,  H04L7/04 ,  H04L7/10 ,  H04L7/06 ,  H04J11/00 ,  H04L27/26 ,  H04W56/00 ,  H04W48/16 ,  H04W72/23

CPC classification number: H04L5/0048 ,  H04J11/0086 ,  H04L5/001 ,  H04L5/0098 ,  H04L7/042 ,  H04L7/06 ,  H04L7/10 ,  H04L27/2613 ,  H04L27/26025 ,  H04L27/2655 ,  H04W48/16 ,  H04W56/0015 ,  H04W72/23 ,  H04L5/0053

Abstract: Various aspects described herein relate to techniques for synchronization channel design and signaling in wireless communications systems (e.g., a 5th Generation (5G) New Radio (NR) system). In an aspect, a method includes identifying a frequency band supported by a user equipment (UE), identifying one or more frequency locations based on the identified frequency band, and the one or more frequency locations are a subset of synchronization raster points used for synchronization signal transmission. The method further includes searching for at least one synchronization signal based on the one or more identified frequency locations.

公开(公告)号：US11770806B2

公开(公告)日：2023-09-26

申请号：US16670050

申请日：2019-10-31

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Peter Gaal ,  Alexandros Manolakos ,  Tao Luo ,  Huilin Xu

IPC: H04W72/04 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04W72/04 ,  H04L5/0048 ,  H04W56/001

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a carrier aggregation (CA) configuration for communications on a set of cells. The UE may determine that signals transmitted on the set of cells may be spatially quasi co-located based on the CA configuration and a predetermined relationship rule. For example, the UE may determine that the signals are spatially co-located based on receiving multiple synchronization signal blocks (SSBs) that have a same SSB index, receiving a common SSB, assuming that an SSB and reference signals sourced by the SSB are spatially quasi co-located, receiving a signal from a particular cell of the set of cells, or receiving a common spatial QCL relationship during a configured period of time. Once the spatial QCL relationship is determined, the UE may receive the signals transmitted on the set of cells based on the spatial QCL relationship.