公开(公告)号：US20230090394A1

公开(公告)日：2023-03-23

申请号：US17482705

申请日：2021-09-23

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04L5/00

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：US20220116924A1

公开(公告)日：2022-04-14

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: H04W72/04 ,  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：US20220085930A1

公开(公告)日：2022-03-17

申请号：US17469347

申请日：2021-09-08

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Changhwan Park

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive, while the UE is in wireless communications with a first serving cell supported by a base station, an indication to activate or deactivate a second serving cell supported by the base station. The UE may receive a reference signal from the base station via the first serving cell, the reference signal received a duration of time after receipt of the indication, where the duration of time is an interruption period for the wireless communications with the first serving cell. The UE may then resume the wireless communications with the first serving cell based on the interruption period ending at receipt of the reference signal.

公开(公告)号：US12262340B2

公开(公告)日：2025-03-25

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

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：US12245172B2

公开(公告)日：2025-03-04

申请号：US17669018

申请日：2022-02-10

Applicant: QUALCOMM Incorporated

Inventor： Chu-Hsiang Huang ,  Yongle Wu ,  Arvind Vardarajan Santhanam ,  Changhwan Park ,  Mihir Vijay Laghate ,  Carlos Cabrera Mercader ,  Valentin Alexandru Gheorghiu ,  Mouaffac Ambriss

IPC: H04W56/00 ,  H04L1/1607 ,  H04W24/10 ,  H04W76/30

Abstract: Certain aspects of the present disclosure provide techniques for signaling and scheduling to enable network configured small gaps in intra-band inter-frequency measurement. A method that may be performed by a user equipment (UE) includes receiving, from a serving cell operating on a first frequency, an indication that synchronization signal block (SSB) indexes of a target cell operating on a second frequency can be derived from timing of the serving cell; and deriving an SSB index of the target cell, based on the timing of the serving cell.

公开(公告)号：US12156156B2

公开(公告)日：2024-11-26

申请号：US18451360

申请日：2023-08-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04L1/08 ,  H04L1/1812 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a non-terrestrial network (NTN) entity, a message that is associated with an uplink grant. The UE may select, based at least in part on the message, either a cell-specific offset or an updated offset that is indicated after initial access, as a timing offset that accounts for a propagation delay between a base station of the NTN and the UE. The UE may transmit, to the NTN entity, an uplink communication using the timing offset. Numerous other aspects are described.

公开(公告)号：US12058683B2

公开(公告)日：2024-08-06

申请号：US17480521

申请日：2021-09-21

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/21 ,  H04L5/00 ,  H04W72/044 ,  H04W72/51

CPC classification number: H04W72/21 ,  H04L5/0012 ,  H04W72/044 ,  H04W72/51

Abstract: Certain aspects of the present disclosure provide techniques for providing direct current locations of bandwidth parts (BWPs) in a BWP hopping pattern. Certain aspects relate to a method for wireless communication by a user equipment (UE). In some examples, the UE may receive, from a base station (BS), a request for uplink direct current location information of the UE, wherein the UE is configured to transmit to the BS on an uplink according to a frequency hopping pattern for hopping between a plurality of uplink bandwidth parts corresponding to different frequency bandwidths. In some examples, the UE may transmit, to the BS, at least one uplink direct current location applicable to the plurality of uplink bandwidth parts. In some examples, the UE may transmit, to the BS, on the uplink according to the frequency hopping pattern.

公开(公告)号：US20240089967A1

公开(公告)日：2024-03-14

申请号：US17940613

申请日：2022-09-08

Applicant: QUALCOMM Incorporated

Inventor： Changhwan Park ,  Sumant Jayaraman Iyer ,  Mostafa Khoshnevisan ,  Yan Zhou

IPC: H04W72/12

CPC classification number: H04W72/1278

Abstract: Methods, systems, and devices for wireless communications are described. In some aspects, a user equipment (UE) may receive an indication of a set of channel measurement resources (CMRs) that are configured for a group-based reference signal measurement for multiple transmission and reception points (TRPs). The UE may identify or determine whether a set of one or more directional beams used by the UE to measure reference signal transmissions from each of the multiple TRPs satisfy a threshold directivity gain. The UE may transmit a request to enable a scheduling restriction at the UE for a time period associated with the group-based reference signal measurement if the set of directional beams fail to satisfy the threshold directivity gain and may transmit a request to disable the scheduling restriction if the set of directional beams satisfy the threshold directivity gain.

公开(公告)号：US20230345281A1

公开(公告)日：2023-10-26

申请号：US18042538

申请日：2020-09-07

Applicant: QUALCOMM INCORPORATED

Inventor： Huilin Xu ,  Peng Cheng ,  Yu Zhang ,  Changhwan Park ,  Chenxi Hao

IPC: H04W24/10 ,  H04L5/00 ,  H04W36/00

CPC classification number: H04W24/10 ,  H04L5/0048 ,  H04W36/0088 ,  H04B7/0626

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a cell measurement supported by the UE, the cell measurement associated with the UE supporting channel state information measurements of a dormant secondary cell in a cell group. The UE may receive a downlink control information triggering channel state information reference signal measurements for a set of cells in the cell group, the set of cells comprising the dormant secondary cell. The UE may perform, based at least in part on the downlink control information, the channel state information reference signal measurements on one or more cells in the set of cells according to the cell measurement supported by the UE to identify channel state information for each of the one or more cells.

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.