公开(公告)号：US11997629B2

公开(公告)日：2024-05-28

申请号：US17449507

申请日：2021-09-30

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

CPC classification number: H04W56/004 ,  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：US11937193B2

公开(公告)日：2024-03-19

申请号：US17214538

申请日：2021-03-26

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W4/029

CPC classification number: H04W56/0005 ,  H04W4/029 ,  H04W74/0833

Abstract: Non-terrestrial networks (NTNs) may establish uplink (UL) and downlink (DL) radio frame timing structures to efficiently account for propagation delay and propagation delay variation associated with communications in the NTN. NTNs may manage (synchronize) radio frame timing structures of base stations (e.g., satellites) and user equipment (UEs) in the NTN. Further, UEs may determine timing advance (TA) values to be applied to UL transmissions based on their respective scheduling offset (e.g., offset in UL and DL radio frame timing structures), as well as based on propagation delay or round trip time (RTT). As such, served UEs may determine UL timing such that UL transmissions from the UEs to a satellite arrives at the satellite in a time synchronized manner. In other cases, a satellite may determine UL timing, based on reception timing, such that various UEs in the NTN may implement uniform UL and DL radio frame timing structures.

公开(公告)号：US11910458B2

公开(公告)日：2024-02-20

申请号：US17220902

申请日：2021-04-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W76/18

CPC classification number: H04W76/18 ,  H04W56/001 ,  H04W56/0035 ,  H04W56/0045 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. The method may include establishing a connection between the UE and a network node of a non-terrestrial network, identifying, based on a synchronization failure event and while the UE is in a connected mode in accordance with establishing the connection, that a location failure condition has occurred for the connection, and performing, at least in part in response to the location failure condition, one or more actions of a location failure recovery procedure to restore a synchronization associated with the connection.

公开(公告)号：US11877299B2

公开(公告)日：2024-01-16

申请号：US17188128

申请日：2021-03-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/30 ,  H04W72/02 ,  H04W72/044 ,  H04W80/02 ,  H04W72/0453 ,  H04W72/0446 ,  H04L1/1867 ,  H04W72/53

CPC classification number: H04W72/30 ,  H04L1/1896 ,  H04W72/02 ,  H04W72/046 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/53 ,  H04W80/02

Abstract: Wireless communications are described. A user equipment (UE) may receive a configuration message identifying a set of resources available for a plurality of UEs for transmission of feedback indications of multi-cast (or broadcast) transmission to the plurality of UEs, the set of resources comprising a plurality of subsets of resources, each subset of resources being associated with a corresponding channel metric for each UE of the plurality of UEs receiving the multi-cast transmission. The UE may determine that a feedback indication is to be provided in response to the multi-cast transmission. The UE may select, based at least in part on a channel metric of the UE, a first subset of the plurality of subsets of resources to use for transmitting a feedback message including the feedback indication. The UE may transmit the feedback message for the multi-cast transmission using resources within the selected first subset of resources.

公开(公告)号：US20230403538A1

公开(公告)日：2023-12-14

申请号：US17838054

申请日：2022-06-10

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Alberto Rico Alvarino ,  Umesh Phuyal ,  Xiao Feng Wang ,  Le Liu ,  Liangping Ma ,  Ayan Sengupta

IPC: H04W4/08 ,  H04W76/10 ,  H04L1/00 ,  H04W72/12

CPC classification number: H04W4/08 ,  H04W76/10 ,  H04L1/0061 ,  H04W72/1289

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive first control signaling indicating a configuration associated with a target network node in a non-terrestrial network. The configuration may include a first UE-group configuration and a UE-specific configuration including integrity information for the first UE-group configuration. The UE may perform a connection operation based on a trust status of the first UE-group configuration.

公开(公告)号：US11832227B2

公开(公告)日：2023-11-28

申请号：US17380650

申请日：2021-07-20

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Liangping Ma ,  Bharat Shrestha ,  Peter Gaal ,  Le Liu ,  Umesh Phuyal ,  Jun Ma

IPC: H04W72/04 ,  H04L5/14 ,  H04W72/0446

CPC classification number: H04W72/0446 ,  H04L5/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a time-domain resource for an uplink transmission. The UE may determine a time period, during which the UE is to refrain from monitoring for downlink communications, based at least in part on the time-domain resource for the uplink transmission and at least one of a first time offset associated with a difference in starting time between an uplink radio frame and a corresponding downlink radio frame at the UE, a second time offset associated with an uplink-downlink timing interaction for the UE, or a network-indicated offset. Numerous other aspects are provided.

公开(公告)号：US11804989B2

公开(公告)日：2023-10-31

申请号：US17125772

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Alberto Rico Alvarino ,  Ayan Sengupta ,  Wanshi Chen ,  Peter Gaal

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/14 ,  H04W88/08 ,  H04W88/02 ,  H04W72/23

CPC classification number: H04L25/0202 ,  H04L5/0048 ,  H04L5/0091 ,  H04L25/0226 ,  H04W72/23 ,  H04L5/001 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, and devices for wireless communications are described. These wireless communications may include channel estimation procedures between communicating devices such as a base station and user equipment (UE). For example, the UE may receive, from the base station, a resource grant triggering a given reference signal configuration. Based at least in part on the type of reference signal configuration, the UE (e.g., and the base station) may determine a timing offset relative to the resource grant. The UE may transmit (and the base station may receive) the reference signal based at least in part on the timing offset. In some cases, the reference signal may be transmitted in a transmission opportunity of a set of transmission opportunities, where the set of transmission opportunities is determined based at least in part on the reference signal configuration.

公开(公告)号：US11792813B2

公开(公告)日：2023-10-17

申请号：US17220764

申请日：2021-04-01

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Kazuki Takeda ,  Alberto Rico Alvarino ,  Mostafa Khoshnevisan ,  Peter Gaal ,  Wanshi Chen ,  Ayan Sengupta

IPC: H04W72/23 ,  H04W72/56

CPC classification number: H04W72/23 ,  H04W72/56

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive one or more retransmissions of an initial group-common transmission. The UE may receive, in accordance with a first SPS configuration, a group-common transmission of a group-common downlink shared channel, the group-common transmission being associated with a first RNTI. The UE may transmit feedback information for the group-common transmission. The UE may then receive a downlink control information (DCI) message scheduling either a group-common retransmission of the group-common downlink shared channel or a unicast retransmission of the group-common downlink shared channel. The DCI may indicate that either the group-common retransmission is associated with the first RNTI or that the unicast retransmission is associated with a second RNTI that may be different from the first RNTI.

公开(公告)号：US11792791B2

公开(公告)日：2023-10-17

申请号：US17250450

申请日：2019-07-17

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Alberto Rico Alvarino ,  Le Liu ,  Ayan Sengupta

IPC: H04W72/1273 ,  H04W4/70 ,  H04W72/23

CPC classification number: H04W72/1273 ,  H04W4/70 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may transmit, and an enhanced machine-type communications (eMTC) user equipment (UE) may receive, an indicator indicating use of a control region of a carrier for a downlink transmission. The BS may transmit and the eMTC UE may receive, based at least in part on the indicator, the downlink transmission during the control region of the carrier. Numerous other aspects are provided.

公开(公告)号：US11777650B2

公开(公告)日：2023-10-03

申请号：US16985883

申请日：2020-08-05

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Qiang Shen ,  Chu-Hsiang Huang ,  Cunzhen Liu ,  Yang Sun ,  Arash Mirbagheri ,  Gabi Sarkis ,  Peter Gaal

IPC: H04L1/00 ,  H04L1/06 ,  H03M13/27 ,  H03M13/15 ,  H04L27/26 ,  H04L5/00 ,  H03M13/29

CPC classification number: H04L1/0071 ,  H04L1/0003 ,  H04L1/0057 ,  H04L1/0606 ,  H04L1/0643 ,  H03M13/15 ,  H03M13/27 ,  H03M13/271 ,  H03M13/2703 ,  H03M13/2778 ,  H03M13/2789 ,  H03M13/2906 ,  H04L1/0059 ,  H04L1/065 ,  H04L5/0023 ,  H04L27/2607

Abstract: A base station maps code blocks of a transport block of a transport block size (TBS) for a channel using tone-level interleaving or resource element (RE)-level interleaving. Then, the base station can transmit the code blocks of the transport block of the TBS for the channel. A UE may receive the channel from the base station and de-interleave the received tones of the channel in a frequency domain to obtain the code blocks of the transport block having the TBS for the channel.