公开(公告)号：US11870537B2

公开(公告)日：2024-01-09

申请号：US17450782

申请日：2021-10-13

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Liangping Ma ,  Yan Zhou

IPC: H04B7/10 ,  H04W72/10 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04B7/10 ,  H04L5/0048 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate an indication of a UE capability for switching polarizations of one or more antennas of the UE. The UE may transmit the indication. The UE may also use a default polarization. Numerous other aspects are described.

公开(公告)号：US11856580B2

公开(公告)日：2023-12-26

申请号：US17142001

申请日：2021-01-05

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Liangping Ma ,  Jing Lei ,  Xiao Feng Wang

IPC: H04W72/21 ,  H04W72/0446

CPC classification number: H04W72/21 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may communicate with a network device in an idle or disconnected state using preconfigured uplink resources (PURs). The UE may transmit uplink data, and may begin to monitor for a PUR response message corresponding to the uplink data after a configurable time offset. The Base station may indicate the configurable time offset in an RRC release message, another message, or the UE may select the configurable time offset from a set of configurable time offsets based on one or more system parameter values. Additionally, the UE may not monitor for PUR response messages after every PUR occasion during which it transmits uplink data.

公开(公告)号：US20230413131A1

公开(公告)日：2023-12-21

申请号：US17844574

申请日：2022-06-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W36/00 ,  H04W36/32 ,  H04W56/00 ,  H04W72/14 ,  H04W72/12

CPC classification number: H04W36/0058 ,  H04W36/0077 ,  H04W36/32 ,  H04W56/0045 ,  H04W72/14 ,  H04W72/1268

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a first cell. The UE may receive a request to report one or more parameters associated with handover from the first cell to a second cell during a time period. The one or more parameters may include an estimated propagation delay between the UE and the second cell during the time period, an estimated rate of change in propagation delay during the time period, or both. The UE may transmit a message indicating the parameters in response to the request. The UE may receive an indication of an uplink grant occasion associated with the handover during the time period based on indicating the parameters.

公开(公告)号：US20230361928A1

公开(公告)日：2023-11-09

申请号：US18312549

申请日：2023-05-04

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Liangping Ma ,  Xiao Feng Wang ,  Jae Ho Ryu ,  Rebecca Wen-Ling Yuan ,  Peter Gaal ,  Kazuki Takeda

IPC: H04L1/1812 ,  H04W24/08

CPC classification number: H04L1/1812 ,  H04W24/08 ,  H04W84/06

Abstract: Methods, systems, and devices for wireless communications are described. The method may include a first network node (e.g., a user equipment (UE)) receiving first control information indicative of a first feedback scheme for multicast transmissions in a non-terrestrial network (NTN) and determining an applied feedback scheme based on the first feedback scheme. The method may also include the first network node monitoring for a multicast transmission and operating in accordance with the applied feedback scheme.

公开(公告)号：US20230262687A1

公开(公告)日：2023-08-17

申请号：US17670503

申请日：2022-02-13

Applicant: QUALCOMM Incorporated

Inventor： Mohamad Sayed Hassan ,  Lianghai Ji ,  Jun Ma ,  Liangping Ma

IPC: H04W72/12 ,  H04W36/06

CPC classification number: H04W72/1268 ,  H04W36/06 ,  H04W72/1289

Abstract: Methods, systems, and devices for wireless communication at a user equipment (UE) are described. A UE may receive, at a source cell served by a network entity, signaling that triggers a handover to a target cell. The UE may also receive a first set of parameters associated with the target cell, the first set of parameters indicating that the target cell is served by the network entity. The UE may then transmit, to the target cell, an uplink communication in accordance with a timing advance value for the target cell. In some examples, the timing advance value for the target cell may be derived using a timing advance value for the source cell based on the target cell being served by the network entity.

公开(公告)号：US11700589B2

公开(公告)日：2023-07-11

申请号：US17320897

申请日：2021-05-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04B7/185

CPC classification number: H04W56/0015 ,  H04B7/185

Abstract: Certain aspects of the present disclosure provide techniques for synchronization signal block (SSB) transmission in different frequency intervals. A method that may be performed by a user equipment (UE) includes receiving a first SSB from an entity in a non-terrestrial network (NTN) at a first time and frequency location. The method generally includes determining one or more time and frequency locations of one or more other SSBs from the entity in the NTN based on the first time and frequency location. The method generally includes monitoring for the one or more other SSBs at the determined one or more time and frequency locations.

公开(公告)号：US11700050B2

公开(公告)日：2023-07-11

申请号：US17447146

申请日：2021-09-08

Applicant: QUALCOMM Incorporated

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

IPC: H04J13/00 ,  H04B7/10 ,  H04L5/00 ,  H04W72/044 ,  H04W72/0453

CPC classification number: H04B7/10 ,  H04L5/0098 ,  H04W72/046 ,  H04W72/0453 ,  H04J13/004

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine a polarization of a bandwidth part. The base station may transmit, to a user equipment, a polarization indication that indicates the polarization for the bandwidth part. Numerous other aspects are provided.

公开(公告)号：US11659599B2

公开(公告)日：2023-05-23

申请号：US17240708

申请日：2021-04-26

Applicant: QUALCOMM Incorporated

Inventor： Jun Ma ,  Qiang Wu ,  Dan Zhang ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Liangping Ma ,  Peter Gaal ,  Iyab Issam Sakhnini

IPC: H04J3/00 ,  H04W74/08 ,  H04W72/0446

CPC classification number: H04W74/0833 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may account for propagation delay when initiating a random access (RACH) procedure. For example, the UE may determine transmission timing for a RACH preamble based on an estimated propagation delay, such that the RACH preamble is received at a base station approximately at the beginning of a slot. To support reliable communication of the RACH preamble, the UE may implement a timing offset. In some examples, the base station may configure the UE with the timing offset using system information. Alternatively, the UE may be pre-configured with the timing offset. By determining the transmission timing for the RACH preamble further based on the timing offset, the UE may ensure that the RACH preamble is received at the base station after a slot boundary (e.g., avoiding causing interference to communications in a previous slot).

公开(公告)号：US11632712B2

公开(公告)日：2023-04-18

申请号：US17243151

申请日：2021-04-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W48/16 ,  H04W76/28 ,  H04W68/00 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a reference time for updating one or more system information parameters associated with a non-terrestrial network (NTN) or updating a cell status associated with the NTN. The UE may determine an update timer length for updating the one or more system information parameters associated with the NTN or the cell status associated with the NTN. The UE may acquire, from a current cell or a new cell, a system information block (SIB) to refresh the one or more system information parameters after an expiration time associated with the one or more system information parameters, wherein the expiration time is based at least in part on the reference time and the update timer length. Numerous other aspects are described.

公开(公告)号：US20230111316A1

公开(公告)日：2023-04-13

申请号：US17657906

申请日：2022-04-04

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/185

Abstract: Certain aspects of the present disclosure provide techniques for enhancing ephemeris for non-terrestrial networks. For example, UEs of different orbit propagation capabilities (e.g., computing orbit propagation models of different accuracy levels) may receive additional ephemeris parameters. In one aspect, a network entity may determine at least one additional set of ephemeris parameters that includes different ephemeris parameters than one or more basic sets of ephemeris parameters associated with a satellite that provides a coverage for the network entity. The network entity may transmit broadcast signaling indicating the at least one additional set of ephemeris parameters. The UE may receive and use the at least one additional set of ephemeris parameters in an orbit propagation model to compute a state of motion of the satellite.