公开(公告)号：US20240090036A1

公开(公告)日：2024-03-14

申请号：US18243234

申请日：2023-09-07

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Jing Sun ,  Sony Akkarakaran ,  Muhammad Nazmul Islam ,  Tao Luo

IPC: H04W74/08 ,  H04W76/10

CPC classification number: H04W74/0833 ,  H04W76/10

Abstract: This disclosure provides systems, methods and apparatus for wireless communications that support fallback from a 2-step to a 4-step random access procedures. A user equipment (UE) may establish a connection with a base station using a random access procedure. The random access procedure may be a 2-step random access procedure and reduce a number of handover exchange messages. The 2-step random access procedure may include the UE transmitting, to the base station, a first random access message including a preamble and a payload. In some implementations, the base station may receive the preamble but fail to receive or decode the payload. The random access procedure may utilize the received preamble information instead of performing retransmission of the first random access message. The base station may transmit a second random access message to the UE indicating, explicitly or implicitly, a fallback to a 4-step random access procedure for connection establishment.

公开(公告)号：US20240080851A1

公开(公告)日：2024-03-07

申请号：US18467885

申请日：2023-09-15

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Yitao CHEN ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04W72/23 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04W72/23 ,  H04B7/0626 ,  H04L5/0048 ,  H04L5/0053

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may receive, from a base station, downlink control information (DCI) that activates periodic channel state information (CSI) reporting via uplink shared channel transmissions (e.g., via physical uplink shared channel (PUSCH) transmissions). The UE may then identify a trigger condition that triggers a transmission of both a first instance of a CSI report and a second instance of the CSI report within a period of the periodic CSI reporting. Based on the satisfaction of the trigger condition, the UE may transmit the first instance of the CSI report via a first uplink shared channel transmission and the second instance of the CSI report via a second uplink shared channel transmission, where both uplink channel transmissions are within the period of the periodic CSI reporting.

公开(公告)号：US20240064737A1

公开(公告)日：2024-02-22

申请号：US18364311

申请日：2023-08-02

Applicant: QUALCOMM Incorporated

Inventor： Yitao CHEN ,  Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG

IPC: H04W72/1268 ,  H04W72/232 ,  H04L5/00

CPC classification number: H04W72/1268 ,  H04W72/232 ,  H04L5/0051

Abstract: A plurality of configurations for an uplink phase tracking reference signal (PTRS) are received from a network entity, as well as downlink control information (DCI) for scheduling a physical uplink shared channel (PUSCH) associated with transmission parameters indicating one of single transmit reception point (sTRP) PUSCH or spatial division multiplexing (SDM) PUSCH. One or more uplink PTRS configurations are identified, based on the transmission parameters. The PUSCH is then transmitted to the network entity, where the PUSCH is associated with the identified one or more uplink PTRS configuration based on an association between the identified one or more uplink PTRS configuration and demodulation reference signal (DMRS) ports.

公开(公告)号：US20240064689A1

公开(公告)日：2024-02-22

申请号：US17820138

申请日：2022-08-16

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed HIRZALLAH ,  Xiaoxia ZHANG ,  Srinivas YERRAMALLI

IPC: H04W64/00 ,  G01S5/02

CPC classification number: H04W64/003 ,  G01S5/02521

Abstract: Disclosed are techniques for UE-based wireless positioning. In an aspect, a user equipment (UE) may acquire, from a first set of transmission/reception entities (TREs), a first set of measurements of signals. The UE may select, from the first set of TREs, a second set of TREs, based on criteria for selecting and/or prioritizing TREs for radio frequency fingerprint (RFFP)-based positioning. The UE may acquire, from the second set of TREs, a second set of measurements, the second set of measurements comprising RFFP measurements. The UE may estimate a position of the UE based on the second set of measurements. In an aspect, the UE may input the second set of measurements into a trained machine learning (ML) model that outputs an estimated position of the UE. In an aspect, the UE receives the selection/prioritization criteria and/or the trained ML model from a network node.

公开(公告)号：US20240057165A1

公开(公告)日：2024-02-15

申请号：US18547635

申请日：2021-04-30

Applicant: QUALCOMM Incorporated

Inventor： Siyi CHEN ,  Arumugam CHENDAMARAI KANNAN ,  Giovanni CHISCI ,  Jing SUN ,  Vinay CHANDE ,  Xiaoxia ZHANG ,  Changlong XU

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may start, in a no-listen-before-talk (no-LBT) mode and after a first channel occupancy time (COT), an away period during which no transmissions are to occur in abeam direction used in the first COT. The wireless communication device may perform, during the away period, channel sensing. The wireless communication device may transmit a communication in a second COT after the away period, based at least in part on a result of the channel sensing. Numerous other aspects are described.

公开(公告)号：US20240057155A1

公开(公告)日：2024-02-15

申请号：US18057383

申请日：2022-11-21

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jing SUN ,  Xiaoxia ZHANG ,  Giovanni CHISCI

IPC: H04W74/08 ,  H04W72/0446 ,  H04W48/08

CPC classification number: H04W74/0808 ,  H04W72/0446 ,  H04W48/08

Abstract: Wireless communications systems, apparatuses, and methods are provided. A method of wireless communication performed by a first sidelink user equipment (UE) includes performing a listen-before-talk (LBT) procedure and transmitting, to a second sidelink UE based on the LBT procedure being successful, a sidelink synchronization signal block (S-SSB) in one of a plurality of candidate S-SSB locations of a slot.

公开(公告)号：US20240057126A1

公开(公告)日：2024-02-15

申请号：US18448096

申请日：2023-08-10

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jae Ho RYU ,  Giovanni CHISCI ,  Hobin KIM ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04W72/25 ,  H04W74/08

CPC classification number: H04W72/25 ,  H04W74/0808

Abstract: A method for wireless communication at a first sidelink user equipment (UE) includes performing, in a shared radio frequency band, a listen-before-talk (LBT) for a channel occupancy time (COT). The method also includes selecting a full-slot sidelink channel waveform hypothesis associated with a first starting symbol, or a half-slot sidelink channel waveform hypothesis associated with a second starting symbol, in accordance with a timing associated with clearing the LBT. The method further includes transmitting, during the COT, sidelink information to a second sidelink UE, a transport block size (TBS) associated with the COT having a fixed number of resources, the fixed number of resources being a same number of resources for full-slot sidelink channel waveform hypothesis and the half-slot sidelink channel waveform hypothesis.

公开(公告)号：US20240048220A1

公开(公告)日：2024-02-08

申请号：US18452412

申请日：2023-08-18

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Arumugam CHENDAMARAI KANNAN ,  Vinay CHANDE ,  Jing SUN ,  Xiaoxia ZHANG ,  Tao LUO

IPC: H04B7/08 ,  H04W74/08 ,  H04W48/02 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04B7/088 ,  H04B7/0888 ,  H04W74/0875 ,  H04W48/02 ,  H04L5/0053 ,  H04W72/23

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for managing beam selection. In one aspect, an initiating wireless device may determine whether a pre-grant acknowledgement associated with a first beam has been received from a responding wireless device within an expected receive time. The initiating wireless device may generate an indication to prevent the initiating wireless device from using the first beam for a blocking duration in response to determining that the pre-grant acknowledgement associated with the first beam has not been received within the expected receive time.

公开(公告)号：US20240045018A1

公开(公告)日：2024-02-08

申请号：US18489702

申请日：2023-10-18

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Jing SUN ,  Xiaoxia ZHANG

IPC: G01S5/06 ,  H04W16/14 ,  H04L41/0803 ,  H04L5/00

CPC classification number: G01S5/06 ,  H04W16/14 ,  H04L41/0803 ,  H04L5/0048 ,  H04W84/042

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a serving cell operating on a first frequency, an inter-frequency communication gap configuration specifying at least one period of time during which the UE is permitted to tune from the first frequency to a second frequency to perform a positioning operation, wherein one or more neighboring cells of the serving cell are operating on the second frequency, tunes from the first frequency to the second frequency at a start of the at least one period of time, and performs, during the at least one period of time, the positioning operation on the second frequency.

公开(公告)号：US20240040574A1

公开(公告)日：2024-02-01

申请号：US18485013

申请日：2023-10-11

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Wei YANG ,  Xiaoxia ZHANG ,  Jing SUN

IPC: H04W72/21 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/044

CPC classification number: H04W72/21 ,  H04B7/0417 ,  H04L5/0055 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may use a downlink control information (DCI) message to indicate timing resources to a user equipment (UE) for multiple downlink data repetitions in a slot. In a first implementation, the base station may indicate an explicit time domain resource allocation (TDRA) for one repetition in the TDRA field of the DCI, and the UE may determine implicit TDRAs for the other repetitions based on the explicit TDRA. In a second implementation, the base station may indicate a total TDRA for the full set of repetitions in the TDRA field, and the UE may divide the total TDRA into individual TDRAs for the repetitions. The UE may receive the downlink data repetitions based on determining the TDRAs and may transmit a feedback message in response based on a hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook.