公开(公告)号：US20210321226A1

公开(公告)日：2021-10-14

申请号：US17223567

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Ayan Sengupta ,  Le Liu ,  Alberto Rico Alvarino ,  Peter Gaal ,  Juan Montojo ,  Tao Luo ,  Mostafa Khoshnevisan ,  Kazuki Takeda

IPC: H04W4/06 ,  H04W74/08 ,  H04W72/04

Abstract: Methods, systems, and devices for multicast wireless communications are described. A base station may configure a user equipment (UE) for providing feedback for multicast transmissions from the base station while the UE is in an inactive or idle mode. Based on a configuration sent to the UE from the base station, the UE may determine resources or a timing advance (TA) to use for transmission of a feedback message for multicast communications. A base station may configure a UE with multiple TA commands, each corresponding to a TA value and a set of channel metrics associated with group of cells including a serving cell of the UE. Based on measure channel metrics at the UE, the UE may determine a TA to use for multicast feedback. TA values may be determined using neural network modeling.

公开(公告)号：US20210306981A1

公开(公告)日：2021-09-30

申请号：US17214519

申请日：2021-03-26

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/00 ,  H04L1/18 ,  H04W24/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently allocating resources for multicast feedback from one or more user equipment (UEs) and efficiently retransmitting information in transport blocks to the one or more UEs. If a UE fails to decode one or more transport blocks of a set of transport blocks from a base station, the UE may report feedback, such as a negative acknowledgment (NACK), to the base station. The base station may receive the feedback from the UE and potentially from other UEs that failed to decode one or more transport blocks of the set of transport blocks, and the base station may multicast one or more outer-coded transport blocks to the UEs. Each of the outer-coded transport blocks may include a different combination (for example, a linear combination) of transport blocks of the set of transport blocks.

公开(公告)号：US20210250905A1

公开(公告)日：2021-08-12

申请号：US17172485

申请日：2021-02-10

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W72/00 ,  H04L5/00 ,  H04W72/12 ,  H04W72/14

Abstract: Wireless communications systems and methods related to acknowledgement/negative-acknowledgement (ACK/NACK) feedback operations for multicast communications are provided. A first user equipment (UE) receives, from a base station (BS), a multicast feedback configuration indicating a first resource configuration for a negative-acknowledgement (NACK) feedback mode; and a second resource configuration for an acknowledgement/negative-acknowledgement (ACK/NACK) feedback mode. The first UE receives, from the BS, a first multicast communication. The first UE transmits, to the BS, a NACK feedback for the first multicast communication based on the first resource configuration. The first UE receives, from the BS, a second multicast communication. The first UE transmits, to the BS, an ACK feedback or a NACK feedback for the second multicast communication based on the second resource configuration.

公开(公告)号：US20210250872A1

公开(公告)日：2021-08-12

申请号：US17171696

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/14 ,  H04W4/06 ,  H04W72/00 ,  H04W72/04 ,  H04W52/24

Abstract: Methods, systems, and devices for wireless communications are described. A base station may communicate with a user equipment (UE) or multiple UEs using multicast transmissions, and each of the multiple UEs may use shared resources to transmit feedback. A UE may receive a power control configuration associated with multicast communications and indicating one or more control parameters or weighting factors for uplink feedback. The UE may monitor a set of downlink resources for the multicast message from the base station, and may determine a decoding failure for the multicast message. The UE may determine whether to transmit uplink feedback to the base station based on the received power control parameters, such as adjusting UE transmit power using a weighting factor or other power control parameters. The UE may determine whether to transmit the uplink feedback message indicating the decoding failure based on the power control configuration.

公开(公告)号：US20200350949A1

公开(公告)日：2020-11-05

申请号：US16865210

申请日：2020-05-01

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Ayan Sengupta ,  Le Liu ,  Umesh Phuyal

IPC: H04B1/7143 ,  H04W72/04 ,  H04W8/24 ,  H04W72/14 ,  H04L5/00 ,  H04W24/08 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described that support techniques for wireless communications using preconfigured uplink resources. Generally, the described techniques provide for enhancement of communication features including frequency hopping, an uplink control channel, coverage enhancement, timing advance, uplink power control, reconfiguration, a downlink control channel, a downlink data channel, retransmissions, or subcarrier spacing for a UE in idle mode. The UE may receive an uplink resource configuration for uplink communications in idle mode, the uplink resource configuration comprising an indicator associated with allocated resources for the uplink communications in idle mode and a set of parameters. The UE may transmit, while in idle mode, a first uplink transmission associated with a transport block on the allocated resources and according to one or more of the parameters, and monitor for a response to the first uplink transmission.

公开(公告)号：US20200252756A1

公开(公告)日：2020-08-06

申请号：US16743764

申请日：2020-01-15

Applicant: Qualcomm Incorporated

Inventor： Alberto Rico Alvarino ,  Amer Catovic ,  Ayan Sengupta

IPC: H04W4/06 ,  H04W72/00

Abstract: Methods, systems, and devices for wireless communications are described to improve support for broadcast systems. In some wireless communications systems, such as broadcast systems for a multimedia broadcast/multicast service (MBMS), an inter-site distance between transmitters or between a transmitter and a receiver may be relatively large compared to an inter-site distance for other scenarios of a wireless communication system (for example, cellular data or talk scenarios). A transmitter in a broadcast system may adjust one or more characteristics of resources in a frame, such as the subframe structure, slot structure, or symbol structure, in carriers dedicated for MBMS resource transmissions. For instance, the transmitter may adjust durations of one or more symbols in a frame.

公开(公告)号：US20190386718A1

公开(公告)日：2019-12-19

申请号：US16443559

申请日：2019-06-17

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino

IPC: H04B7/0456 ,  H04L27/26 ,  H04B7/0452 ,  H04L5/00 ,  H04L1/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described that provide for multiple-input multiple-output (MIMO) transmissions of control information using downlink control channel resources, such as physical downlink control channel (PDCCH) resources. The MIMO transmissions may provide control channel transmissions to multiple UEs using the same time-frequency resources. A base station may use a subset of control channel monitoring entities for MIMO control channel transmissions, and another subset of control channel monitoring candidates for non-MIMO control channel transmissions. Control channel monitoring entities for MIMO transmissions may be defined separately from non-MIMO or legacy control channel candidates.

公开(公告)号：US12294442B2

公开(公告)日：2025-05-06

申请号：US17707140

申请日：2022-03-29

Applicant: QUALCOMM INCORPORATED

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

IPC: H04B7/185 ,  H04B7/06 ,  H04W64/00

Abstract: A method for wireless communication includes validating a PUR configuration in a NTN based on location-related information associated with a satellite. For example, a UE may determine, based on location-related information of a satellite in a non-terrestrial network, whether a preconfigured uplink resource (PUR) configuration is valid. The UE may also transmit, to a base station (BS) via the satellite in response to determining that the PUR configuration is valid, a communication signal in a PUR. For example, the UE may determine, based on the location-related information associated with the satellite, if the parameter satisfies the threshold, and transmit UL data in a PUR occasion based on the determined parameter satisfying the threshold.

公开(公告)号：US12289665B2

公开(公告)日：2025-04-29

申请号：US17467121

申请日：2021-09-03

Applicant: QUALCOMM Incorporated

Inventor： Bharat Shrestha ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Ayan Sengupta

IPC: H04B7/216 ,  H04B7/185 ,  H04W48/10 ,  H04W48/14 ,  H04W84/04

Abstract: Apparatus, methods, and computer-readable media for facilitating on-demand ephemeris and beam information requests are disclosed herein. An example method for wireless communication at a UE includes transmitting a request for requested information, the requested information including one or more of system information and satellite information. The example method also includes receiving a response message based on the request, the response message including one or more of: an NTN system information block, satellite information associated with at least one requested communication satellite, and beam information associated with the at least one requested communication satellite.

公开(公告)号：US12250704B2

公开(公告)日：2025-03-11

申请号：US16749790

申请日：2020-01-22

Applicant: QUALCOMM Incorporated

Inventor： Umesh Phuyal ,  Ayan Sengupta ,  Le Liu ,  Alberto Rico Alvarino ,  Mungal Singh Dhanda

IPC: H04W72/1268 ,  H04L1/1812 ,  H04L5/00 ,  H04W24/08 ,  H04W72/04 ,  H04W72/21 ,  H04W72/51 ,  H04W72/53 ,  H04W72/563 ,  H04W76/27 ,  H04W76/36 ,  H04W80/02 ,  H04W80/08

Abstract: Methods, systems, and devices for wireless communications are described. that support preconfigured uplink resources (PUR) in wireless communications. A base station may communicate that support for PUR is available, and may allocate PUR resources to a user equipment (UE) based on requests from the UE. The UE may receive an indication that the base station supports PUR, such as via a system information block (SIB), determine to request PUR, and transmit a PUR request message to the base station. A PUR response from the base station may indicate a PUR allocation for the UE that may be used for uplink transmissions. Uplink transmissions that use PUR may be acknowledged by the base station based on a QOS associated with the uplink transmissions.