公开(公告)号：US20210281520A1

公开(公告)日：2021-09-09

申请号：US17188943

申请日：2021-03-01

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Xiao Feng Wang ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Liangping Ma

IPC: H04L12/841 ,  H04B7/185

Abstract: Methods, systems, and devices for wireless communications are described in which UEs may communicate with satellites and base stations or gateways in a non-terrestrial network (NTN). Due to the large distances between transmitting devices and receiving devices in a NTN, timing adjustments to account for propagation delay communications links via a satellite may include a propagation delay between a UE and a satellite, a propagation delay between a base station and a satellite, as well as a variation in the propagation delays due to movement of the satellite. In accordance with various techniques discussed herein, a UE may account for variation in propagation delay, in addition to determined propagation delay, when determining an uplink timing for uplink communications via a satellite.

公开(公告)号：US12262225B2

公开(公告)日：2025-03-25

申请号：US17477183

申请日：2021-09-16

Applicant: QUALCOMM Incorporated

Inventor： Rajeev Kumar ,  Bharat Shrestha ,  Alberto Rico Alvarino ,  Umesh Phuyal ,  Xipeng Zhu ,  Shankar Krishnan

IPC: H04W24/02 ,  H04B7/185 ,  H04L1/1812 ,  H04W8/22 ,  H04W8/24 ,  H04W24/08 ,  H04W24/10 ,  H04W76/27

Abstract: Certain aspects of the present disclosure provide techniques for data collection for non-terrestrial networks (NTN). One aspect provides a method for wireless communications by a user equipment (UE). The method generally includes transmitting an indication of a capability of the UE to connect to a network via both terrestrial network (TN) cells and non-terrestrial network (NTN) cells and transmitting one or more data collection reports in accordance with the indicated capability.

公开(公告)号：US12192749B2

公开(公告)日：2025-01-07

申请号：US17322797

申请日：2021-05-17

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Prasad Reddy Kadiri ,  Umesh Phuyal ,  Alberto Rico Alvarino

IPC: H04W36/24 ,  H04W36/00 ,  H04W84/06

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques may provide for efficiently triggering a handover at a user equipment (UE) from a source cell to a target cell. The UE may receive, at a first time period, a first control message including a configuration of a target cell to use at a second time period for performing a handover procedure from a source cell to a target cell. The UE may then receive, at the second time period, a second control message triggering the UE to perform the handover procedure from the source cell to the target cell. The UE may use the configuration of the target cell received in the first control message to perform a handover procedure from the source cell to the target cell at the second time period in response to receiving the second control message.

公开(公告)号：US12167361B2

公开(公告)日：2024-12-10

申请号：US17090876

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Stephen William Edge ,  Luis Fernando Brisson Lopes ,  Amer Catovic ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Haris Zisimopoulos ,  Stefano Faccin ,  Xiao Feng Wang

IPC: H04W64/00 ,  H04W24/10

Abstract: Disclosed are techniques for wireless communication using satellite access to a wireless network, where a wireless cell supported by a satellite is moving or temporarily fixed. In an aspect, a radio access network (RAN) entity or a user equipment (UE) provides, to a core network entity, an enhanced cell global identifier (CGI), where the enhanced CGI includes at least one field representing a location of the UE. Based on the enhanced CGI, the core network entity determines a location of the UE, and may provide a service to the UE based on the location. A core network may also provide an enhanced CGI to a RAN, e.g., to support wireless emergency alerting to UEs.

公开(公告)号：US12126540B2

公开(公告)日：2024-10-22

申请号：US18205642

申请日：2023-06-05

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Xiao Feng Wang ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Liangping Ma

IPC: H04L47/283 ,  H04B7/185

CPC classification number: H04L47/283 ,  H04B7/18513

Abstract: Methods, systems, and devices for wireless communications are described in which UEs may communicate with satellites and base stations or gateways in a non-terrestrial network (NTN). Due to the large distances between transmitting devices and receiving devices in a NTN, timing adjustments to account for propagation delay communications links via a satellite may include a propagation delay between a UE and a satellite, a propagation delay between a base station and a satellite, as well as a variation in the propagation delays due to movement of the satellite. In accordance with various techniques discussed herein, a UE may account for variation in propagation delay, in addition to determined propagation delay, when determining an uplink timing for uplink communications via a satellite.

公开(公告)号：US12108308B2

公开(公告)日：2024-10-01

申请号：US17341801

申请日：2021-06-08

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Prasad Reddy Kadiri ,  Umesh Phuyal ,  Bharat Shrestha ,  Juan Montojo ,  Peter Gaal ,  Wanshi Chen ,  Kazuki Takeda ,  Ayan Sengupta ,  Tao Luo ,  Xiaoxia Zhang

IPC: H04W4/06 ,  H04L1/1867 ,  H04W8/24 ,  H04W24/10

CPC classification number: H04W4/06 ,  H04L1/1896 ,  H04W8/24 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a multicast service available for subscription by the UE or to which the UE is already subscribed. The UE may transmit a message, to a network node, that may include UE assistance information (UAI) indicating at least one of a UE capability to process multicast transmissions or a feedback scheme preference for reporting feedback for the multicast transmissions. The UAI may also include at least one of a multicast carrier preference, band or carrier measurement report, a multicast priority indication, or a measurement and reporting scheme preference for the multicast transmissions. The network node may receive the UAI and determine one or more parameters for multicast communications with the UE based on the UAI. The UE may receive the multicast transmissions from the network node in accordance with the UAI.

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：US12068997B2

公开(公告)日：2024-08-20

申请号：US17383741

申请日：2021-07-23

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Xiao Feng Wang ,  Hung Dinh Ly ,  Alberto Rico Alvarino ,  Peter Gaal ,  Ayan Sengupta ,  Bharat Shrestha ,  Jun Ma

IPC: H04L5/00 ,  H04W4/02 ,  H04W56/00

CPC classification number: H04L5/0053 ,  H04W56/001

Abstract: Methods, systems, and devices for wireless communications are described. A non-terrestrial network (NTN) device (e.g., a satellite, base station) may transmit, to a user equipment (UE), at a first frequency a synchronization signal block (SSB) that indicates a second frequency of a control resource set (CORESET) relative to the SSB, where the second frequency is based on one or more of: a CORESET bandwidth, a combination of a first parameter associated with a first portion of the SSB and a second parameter associated with a second portion of the SSB, or both. The UE may monitor the CORESET at the indicated second frequency for a downlink control channel transmission. The NTN device may transmit, to the UE, a downlink control channel transmission over the CORESET. The NTN device may transmit, to the UE, system information based on the downlink control channel transmission.

公开(公告)号：US20240267957A1

公开(公告)日：2024-08-08

申请号：US18588883

申请日：2024-02-27

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy Kadiri ,  Bharat Shrestha ,  Mungal Singh Dhanda ,  Umesh Phuyal

IPC: H04W74/0833 ,  H04L5/00 ,  H04W8/02 ,  H04W8/24 ,  H04W60/00 ,  H04W76/10

CPC classification number: H04W74/0833 ,  H04L5/0044 ,  H04W8/02 ,  H04W8/245 ,  H04W60/00 ,  H04W76/10

Abstract: A base-station (BS) receiving a random access request from user equipment (a UE), followed by a connection request. The connection request contains UE identity information which may have one of multiple formats depending on whether the access request and/or the connection request indicate that the UE is operating as a bandwidth-limited (BL) UE, an enhanced coverage (CE) UE, or a UE that operates in neither the BL mode nor the CE mode. In the BL mode, the UE may transmit a truncated identifier that is sufficient for the BS to retrieve capability information for the UE prior to transmitting a resource grant to the UE. The BS may then configure the UE and BS to using a radio configuration optimized for the UE's capabilities and transmit the resource grant in accordance with the optimized configuration.

公开(公告)号：US12035182B2

公开(公告)日：2024-07-09

申请号：US17475150

申请日：2021-09-14

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Xiao Feng Wang ,  Ayan Sengupta ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Mungal Singh Dhanda ,  Liangping Ma

IPC: H04W4/00 ,  H04B7/185 ,  H04W36/00 ,  H04W36/06

CPC classification number: H04W36/0061 ,  H04B7/18513 ,  H04W36/0072 ,  H04W36/06

Abstract: A user equipment may be configured to perform cell reselection during a gateway or satellite switch. In some aspects, the user equipment may select a current cell of a satellite device in a radio access network (RAN) and receive, from the satellite device, cell reselection information for identifying a destination cell for selection in response to a link modification. Further, the user equipment may select, via a cell reselection process, the destination cell based on the cell reselection information.