公开(公告)号：US12096490B2

公开(公告)日：2024-09-17

申请号：US17651206

申请日：2022-02-15

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Peter Gaal ,  Ayan Sengupta ,  Jun Ma ,  Bharat Shrestha ,  Changhwan Park ,  Umesh Phuyal ,  Huilin Xu

IPC: H04W74/0833 ,  H04L5/00 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04W74/0841 ,  H04L5/0012 ,  H04W72/0446 ,  H04W74/008 ,  H04W74/0866

Abstract: Aspects are provided which allow coverage enhancement and support in NTNs for repetition, frequency hopping, and antenna switching during msgA transmissions based on a preamble-to-PO mapping. In one aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with at least one PO for two-step random access, where the PO spans a time interval greater than one slot. In another aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with a plurality of POs for two-step random access. In a further aspect, the base station provides the UE a plurality of configurations each indicating a PO for two-step random access. In an additional aspect, the base station provides the UE a configuration indicating a guard band for a PO for two-step random access, where the guard band is indicated in units of subcarriers spanning less than one PRB.

公开(公告)号：US20240275543A1

公开(公告)日：2024-08-15

申请号：US18167507

申请日：2023-02-10

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Mostafa Khoshnevisan ,  Peter Gaal ,  Jae Ho Ryu ,  Changhwan Park ,  Heechoon Lee

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0005 ,  H04L5/0064

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first control message including a resource block group size parameter that includes a resource block group size configuration. The UE may receive a single second control message scheduling a plurality of transmissions in a plurality of cells and including a plurality of frequency domain resource allocation fields indicating a plurality of resource block groups. The UE may communicate a first transmission in one or more resource block groups of the plurality of resource block groups in accordance with a first resource block group size.

公开(公告)号：US12035301B2

公开(公告)日：2024-07-09

申请号：US17444032

申请日：2021-07-29

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Changhwan Park

IPC: H04W72/1263 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/1263 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may monitor, using a first physical downlink control channel (PDCCH) monitoring behavior, for a first downlink control information (DCI) format that indicates a set of resources associated with at least one of a cross component carrier (CC) scheduling or a multiple CC scheduling associated with a first CC and a second CC. The UE may monitor, using a second PDCCH monitoring behavior based at least in part on a determination that a PDCCH monitoring behavior switch condition is satisfied, for a second DCI format. Numerous other aspects are provided.

公开(公告)号：US11985648B2

公开(公告)日：2024-05-14

申请号：US17449654

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: H04L12/26 ,  H04W24/02 ,  H04W72/044

CPC classification number: H04W72/046 ,  H04W24/02

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

公开(公告)号：US11974155B2

公开(公告)日：2024-04-30

申请号：US17482705

申请日：2021-09-23

Applicant: QUALCOMM Incorporated

Inventor： Prashant Sharma ,  Changhwan Park ,  Iyab Issam Sakhnini ,  Tao Luo

IPC: H04L5/00 ,  H04W24/10

CPC classification number: H04W24/10 ,  H04L5/0012 ,  H04L5/0078

Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may be configured with a frequency hopping pattern for communication between the UE and a base station, and also may be configured with a measurement gap pattern for measurement of one or more reference signals from one or more neighboring base stations. One or more switching timings of a set of switching timings of the frequency hopping pattern may be aligned with a reference point associated with the measurement gap pattern, which may provide aligned switching gaps in the frequency hopping pattern and the measurement gap pattern.

公开(公告)号：US20240064679A1

公开(公告)日：2024-02-22

申请号：US17892825

申请日：2022-08-22

Applicant: QUALCOMM Incorporated

Inventor： Lianghai Ji ,  Changhwan Park ,  Mehmet Izzet Gurelli ,  Liangping Ma ,  Venkatraman Rajagopalan ,  Mohamad Sayed Hassan ,  Qiang Wu ,  Jun Ma ,  Huilin Xu ,  Weimin Duan ,  Karthik Anantha Swamy ,  Alexander Dorosenco ,  Onur Senel ,  Nitzan OFer ,  Yan Wang

IPC: H04W56/00

CPC classification number: H04W56/005 ,  H04W56/006

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may obtain updated location information, and determine a time difference between a previous communication with a network and a scheduled uplink transmission. Based on the determined time difference, the UE may determine a timing advance (TA) component of a TA value to apply for the uplink transmission, and transmit an uplink message in the uplink transmission according to the determined TA value and the location information. In some examples, the time difference may be based on a first duration between the uplink transmission and a previous uplink transmission, a second duration between the uplink transmission and a previous TA command received from the network, or both. In some examples, the determined TA value may be based on additional parameters, such as an autonomous adjustment step, an aggregate adjustment rate, a scaling factor, or any combination thereof.

公开(公告)号：US20240040444A1

公开(公告)日：2024-02-01

申请号：US17876964

申请日：2022-07-29

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Shanyu Zhou ,  Changhwan Park ,  Tao Luo ,  Aleksandar Damnjanovic

IPC: H04W36/00

CPC classification number: H04W36/0055

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a network entity may configure a user equipment (UE) with a set of cells supporting Layer 1 (L1) mobility, Layer 2 (L2) mobility, or both for special cells (SpCells). The network entity may transmit a control signal, such as a medium access control (MAC) control element (CE) or a downlink control information (DCI) message, to the UE to update an SpCell. The control signal may include a cell identifier (ID) indicating which cell to set as the SpCell. Additionally, the control signal may include a transmission/reception point (TRP) ID indicating which TRP to set as the primary TRP (pTRP) for the SpCell. In response to the control signal, the UE may switch from a current SpCell to the cell indicated by the control signal and may communicate with the network via the pTRP of the new SpCell.

公开(公告)号：US11805451B2

公开(公告)日：2023-10-31

申请号：US17546941

申请日：2021-12-09

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Changhwan Park ,  Olufunmilola Omolade Awoniyi-Oteri

IPC: H04L5/00 ,  H04W36/00 ,  H04W48/08

CPC classification number: H04W36/0061 ,  H04L5/0055 ,  H04W36/0069 ,  H04W48/08

Abstract: A UE may receive, from a serving cell, an activation indication for an SCell, receiving a first reference signal from the SCell, the first reference signal including at least one temporary reference signal, identify whether a second reference signal is received after processing the activation indication and before an expiration of an SCell activation time, and activate, upon identifying that the second reference signal is received, the SCell based on one or more reference signals including at least one of the first reference signal or the second reference signal. The UE may activate the SCell no later than in slot n+K, and K may be determined based on at least in part the SCell activation time.

公开(公告)号：US20230136589A1

公开(公告)日：2023-05-04

申请号：US17894875

申请日：2022-08-24

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Changhwan Park ,  Punyaslok Purkayastha

IPC: H04L5/00 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive, via a first serving cell, a message including an indication to activate a second serving cell different from the first serving cell. The UE may receive, via the first serving cell, a control message indicating a first resource for transmitting a response message responsive to the message, and triggering a reference signal associated with time and frequency tracking for the second serving cell. The UE may transmit, via the first serving cell and within the first resource indicated via the control message, the response message acknowledging the message. The UE may then monitor a second resource of the second serving cell for the reference signal based on the control message.

公开(公告)号：US20230126370A1

公开(公告)日：2023-04-27

申请号：US17944074

申请日：2022-09-13

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Jing Lei ,  Carsten Aagaard Pedersen ,  Murali Menon ,  Prashant Sharma ,  Changhwan Park ,  Peter Gaal ,  Peter Pui Lok Ang

IPC: H04W28/02

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE), such as a UE with reduced capabilities, may switch from a first bandwidth part (BWP) to a second BWP to receive system information for a carrier that includes the first and second BWPs. The UE may switch to the second BWP to receive system information based on a trigger (e.g., control signaling or an expiration of a timer) and then switch back to the first BWP without additional signaling to continue operation. In some examples, the UE may receive additional signaling (e.g., data, control signaling, reference signals) in the second BWP. In some examples, a BWP switching duration may include additional time to process the system information received in the second BWP, for example if the system information includes instructions to switch to a third BWP (e.g., rather than returning to the first BWP).