公开(公告)号：US20200313754A1

公开(公告)日：2020-10-01

申请号：US16831699

申请日：2020-03-26

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng Wang ,  Jun Ma ,  Iyab Issam Sakhnini ,  Dan Zhang

IPC: H04B7/185 ,  H04L27/26 ,  H04W74/08 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently determining appropriate uplink frequencies for uplink transmissions to a satellite. As described herein, a wireless communications system may support a closed loop frequency correction scheme where a satellite may provide an uplink frequency correction to a user equipment (UE) such that the UE may be able to identify an appropriate uplink frequency for an uplink transmission. In some implementations, the UE may first transmit an uplink signal to the satellite on an initial uplink frequency, and the satellite may determine a corrected uplink frequency for the UE based on the initial uplink frequency. The satellite may then transmit an indication of the corrected uplink frequency to the UE, and the UE may transmit a second uplink signal based on the corrected uplink frequency.

公开(公告)号：US20190394770A1

公开(公告)日：2019-12-26

申请号：US16444954

申请日：2019-06-18

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng Wang ,  Iyab Issam Sakhnini ,  Alberto Rico Alvarino ,  Peter Gaal ,  Jun Ma

IPC: H04W72/04 ,  H04W76/28

Abstract: Methods, systems, and devices for wireless communications that support upstream timing control mechanisms for non-terrestrial networks are described. Generally, the described techniques provide for wireless communications from a user equipment (UE) in wireless communication with a satellite. A gateway in the non-terrestrial networks may receive an upstream transmission from the UE in wireless communication with the satellite and determine a timing adjustment for a second upstream transmission from the UE based on the upstream transmission from the UE. The gateway may then transmit to the UE in a group control information message or a dedicated physical channel message, a timing command indicating the timing adjustment for the second upstream transmission. The UE may receive the second timing adjustment and transmit data over the second upstream transmission using the second timing adjustment.

公开(公告)号：US10477520B2

公开(公告)日：2019-11-12

申请号：US15164765

申请日：2016-05-25

Applicant: QUALCOMM Incorporated

Inventor： Ruoheng Liu ,  Jun Ma ,  Qiang Wu

IPC: H04W72/04 ,  H04L1/18 ,  H04W72/14 ,  H04W74/08 ,  H04L5/00 ,  H04B7/185 ,  H04W84/06 ,  H04W88/16

Abstract: Various aspects of the disclosure relate to allocating control signaling resources for multiple carrier scenarios. In an example implementation, N-to-1 mapping is used between forward link control signaling resource allocation indices (e.g., control channel elements) and return link control signaling resources (e.g., for ACK/NACK signaling) indices in each return link component carrier. A collision between forward link control signaling assignments for different user terminals (UTs) may occur when UT-specific search spaces overlap each other. Such a collision may be avoided, for example, by scheduling different UTs on different return link component carriers, scheduling return link grants instead of forward link grants, or scheduling a different forward link control signaling candidate that is associated with a different forward link control signaling resource allocation index.

公开(公告)号：US12267264B2

公开(公告)日：2025-04-01

申请号：US17450771

申请日：2021-10-13

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Junyi Li ,  Mahmoud Taherzadeh Boroujeni ,  Wanshi Chen ,  Qiang Wu ,  Jun Ma ,  Linhai He ,  Peter Gaal

IPC: H04L5/00

Abstract: An apparatus, e.g., a UE, for transmission of information modulated onto RSs using index modulation is disclosed. The UE may receive, from a base station, a configuration of one or more RS resources of an RS resource set. The one or more RS resources may be associated with an index modulation technique including a plurality of UL or DL information bits. The UE may transmit, to the base station, or receive, from the base station, the plurality of UL or DL information bits. The plurality of UL or DL information bits may include at least one of one or more first bits or one or more second bits. At least one of the one or more RS resources may be selected based on at least one of the one or more first bits or the one or more second bits.

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：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：US12143224B2

公开(公告)日：2024-11-12

申请号：US17451749

申请日：2021-10-21

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04L1/1812 ,  H04L1/1829 ,  H04W72/1263 ,  H04W72/23

Abstract: Certain aspects of the present disclosure provide techniques for providing feedback. For example, a user equipment (UE) may receive, from a network node, a configuration of a search space comprising time and frequency resources available to the network node for communicating a downlink control channel, the configuration indicating a feedback process type corresponding to the search space. The UE may also receive, from the network node, the downlink control channel in the search space. The UE may also receive a downlink transmission scheduled by the downlink control channel. The UE may selectively provide feedback to the network node regarding decoding of the downlink transmission according to the feedback process type corresponding to the search space.

公开(公告)号：US12133242B2

公开(公告)日：2024-10-29

申请号：US18452390

申请日：2023-08-18

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Jun Ma

IPC: H04W72/53 ,  H04W8/24 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23 ,  H04W76/28

CPC classification number: H04W72/53 ,  H04W8/24 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23 ,  H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may configure a set of transmission parts each including different sets of time domain resources or different sets of frequency domain resources, or both, and may specify a waveform type for each of the set of transmission parts. In some examples, the base station may configure the set of transmission parts for a user equipment (UE) and, accordingly, the UE and the base station may communicate over a transmission part of the set of transmission parts via signaling that is based on a waveform type that is associated with the transmission part over which the UE and the base station communicate. The base station may control over which transmission part of the set of transmission parts the UE and the base station communicate via a configured timer or via explicit activation and deactivation signaling.

公开(公告)号：US12108293B2

公开(公告)日：2024-10-01

申请号：US17444559

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W36/00 ,  H04B7/185 ,  H04W36/06 ,  H04W36/08 ,  H04W36/30 ,  H04W36/32 ,  H04W68/00 ,  H04W72/044

CPC classification number: H04W36/08 ,  H04B7/18513 ,  H04B7/18519 ,  H04W36/06 ,  H04W36/30 ,  H04W36/32 ,  H04W68/005 ,  H04W72/044

Abstract: In one aspect, a method of wireless communication includes operating, by a user equipment (UE), in a network with fixed radio cells. The method also includes determining, by the UE, a plurality of potential satellites for selecting a first cell to camp on, the first cell associated with a first satellite. The method includes performing cell reselection, by the UE, to select a cell associated with a second satellite using a selection condition. The method further includes establishing, by the UE, a connection with the second satellite for paging monitoring or wireless communications. Other aspects and features are also claimed and described.

公开(公告)号：US12069597B2

公开(公告)日：2024-08-20

申请号：US17455373

申请日：2021-11-17

Applicant: QUALCOMM Incorporated

Inventor： Lianghai Ji ,  Huilin Xu ,  Liangping Ma ,  Qiang Wu ,  Jun Ma ,  Mehmet Izzet Gurelli ,  Weimin Duan ,  Karthik Anantha Swamy

IPC: H04W56/00 ,  H04L1/00 ,  H04W28/26 ,  H04W72/044 ,  H04W72/23 ,  H04W84/06

CPC classification number: H04W56/001 ,  H04L1/0067 ,  H04W28/26 ,  H04W72/046 ,  H04W72/23 ,  H04W84/06

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for PDSCH rate-matching in NTN systems. A UE may receive an indication of a subset of one or more SSB beams included in a set of SSB beams having one or more PDCCH resources reserved for potentially scheduling one or more SIBs associated with the set of SSB beams. The UE may further receive a PDSCH associated with resources that overlap with at least a portion of the one or more PDCCH resources associated with the indication of the subset of one or more SSB beams, and rate-match around the one or more PDCCH resources associated with the indication of the subset of one or more SSB beams for receiving the PDSCH.