公开(公告)号：US12232189B2

公开(公告)日：2025-02-18

申请号：US17652141

申请日：2022-02-23

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud Taherzadeh Boroujeni ,  Tao Luo ,  Gokul Sridharan ,  Hung Dinh Ly

IPC: H04W76/10 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/1263 ,  H04W72/23 ,  H04W74/0833 ,  H04W76/20

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node and prior to transmission of a radio resource control (RRC) connection request message, a phase tracking reference signal (PTRS) indication that indicates a presence of a PTRS. The UE may transmit the RRC connection request message comprising the PTRS based at least in part on the PTRS indication. Numerous other aspects are described.

公开(公告)号：US20250047327A1

公开(公告)日：2025-02-06

申请号：US18722476

申请日：2022-02-11

Applicant: QUALCOMM INCORPORATED

Inventor： Ahmed Elshafie ,  Hung Dinh Ly ,  Yu Zhang

IPC: H04B7/04 ,  H04B7/06 ,  H04L5/00 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for beam training a reconfigurable intelligent surface (RIS) for sidelink communications between UEs. A base station may transmit an indication of a resource pool to a receiving UE and a transmitting UE for beam training a RIS. The transmitting UE may identify a resource pattern for training the RIS using the indicated resource pool where the resource pattern is associated with a pattern of beams at the RIS. The transmitting UE may transmit a sidelink reference signal using the identified resource. The receiving UE may receive the reference signal via the RIS according the pattern of beams and transmit a beam report to the transmitting UE. Beam training may be based on a capability of the RIS to use either a different beamformer or a different RIS configuration on different subchannels of the same resource pool.

公开(公告)号：US20250038791A1

公开(公告)日：2025-01-30

申请号：US18716854

申请日：2022-02-25

Applicant: QUALCOMM INCORPORATED

Inventor： Saeid Sahraei ,  Yu Zhang ,  Krishna Kiran Mukkavilli ,  Peter Gaal ,  Wanshi Chen ,  Tingfang Ji ,  Hung Dinh Ly

IPC: H04B7/04 ,  H04B7/06 ,  H04L5/00 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. The method includes a reconfigurable intelligent surface receiving, from a network entity, a synchronization signal block associated with a synchronization signal block index, reflecting the synchronization signal block as a set of multiple instances of the synchronization signal block via a corresponding set of multiple downlink transmit beams, receiving a random access message from a user equipment (UE) during a random access occasion that corresponds with the synchronization signal block index and on an uplink receive beam that corresponds with one of the set of multiple downlink transmit beams, identifying the phase-change pattern of multiple phase-change patterns that corresponds to the uplink receive beam, and reflecting the random access message to the network entity by applying the phase-change pattern to antenna elements of the reconfigurable intelligent surface that reflect the random access message to the network entity.

公开(公告)号：US12213073B2

公开(公告)日：2025-01-28

申请号：US17721201

申请日：2022-04-14

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Ahmed Elshafie ,  Hung Dinh Ly ,  Krishna Kiran Mukkavilli

IPC: H04W52/02 ,  H04W72/1263 ,  H04W72/21

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit one or more messages indicating a first time period having a duration prior to expected traffic being available for transmission at the UE, and indicating a size associated with the expected traffic (e.g., a quantity of bits). In some examples, the one or more messages may include a UE assistance information (UAI) message or a buffer status report (BSR) message. The UE may receive a response message based on the one or more messages indicating that a network entity is to enter a sleep mode during a second time period based on the first time period and the size associated with the expected traffic. In some examples, the network entity may enter the sleep mode based on the first time period and the size associated with the expected traffic.

公开(公告)号：US20250016840A1

公开(公告)日：2025-01-09

申请号：US18707048

申请日：2022-01-20

Applicant: QUALCOMM INCORPORATED

Inventor： Saeid Sahraei ,  Yu Zhang ,  Hung Dinh Ly ,  Peter Gaal ,  Krishna Kiran Mukkavilli

IPC: H04W74/0833 ,  H04B7/06 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) and a base station may participate in a one-shot initial access procedure involving a reconfigurable intelligent surface (RIS) divided into a number of sub-RISs, each sub-RIS associated with a different configuration for reflecting signaling from the base station. In some aspects, the base station may configure each sub-RIS to have a different frequency shift and transmit, to the UE, a parameter indicating a quantity of synchronization rasters associated with each of a set of beams that the base station may use as part of the one-shot initial access procedure. The UE may, for each beam, monitor a quantity of monitoring occasions corresponding to the quantity of synchronization rasters and transmit random access signaling to the base station based on which synchronization raster of which beam provides a greatest signal strength at the UE.

公开(公告)号：US20250007566A1

公开(公告)日：2025-01-02

申请号：US18705962

申请日：2021-12-10

Applicant: QUALCOMM INCORPORATED

Inventor： Saeid Sahraei ,  Krishna Kiran Mukkavilli ,  Yu Zhang ,  Hung Dinh Ly

IPC: H04B7/04 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may communicate with a user equipment (UE) via a reconfigurable intelligent surface (RIS) which is capable of adjusting a reflection characteristic to reflect incident signaling in different directions. The base station and the RIS may establish a beamformed connection and, in some scenarios, the base station and the RIS may experience a beam failure. In such scenarios, the base station, the UE, and the RIS may participate in a two-step beam training procedure to reduce an amount of possible beam pair hypotheses that the communicating devices test in order to re-establish communication between the base station and the UE via the RIS. The two-step beam training procedure may include a first procedure in which the RIS selects a suitable beam toward the base station and a second procedure that leverages the selected beam.

公开(公告)号：US12177018B2

公开(公告)日：2024-12-24

申请号：US17648116

申请日：2022-01-14

Applicant: QUALCOMM Incorporated

Inventor： Gokul Sridharan ,  Peter Gaal ,  Tao Luo ,  Mahmoud Taherzadeh Boroujeni ,  Hung Dinh Ly

IPC: H04L1/08 ,  H04L5/00 ,  H04W72/1268 ,  H04W72/23 ,  H04L1/1812 ,  H04W4/20 ,  H04W80/00

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for PUCCH/PUSCH DMRS bundling. A UE may transmit, to a network entity, a first indication of a maximum DMRS bundling duration for maintaining transmit phase coherence for transmitted DMRS. The UE may receive, from the network entity based on the first indication of the maximum DMRS bundling duration, a second indication of at least one of a DMRS bundling activation or a DMRS bundling duration. Based on the at least one of the DMRS bundling activation or the DMRS bundling duration, the UE may transmit at least one UL repetition including bundled DMRS.

公开(公告)号：US20240405826A1

公开(公告)日：2024-12-05

申请号：US18694331

申请日：2021-11-30

Applicant: QUALCOMM INCORPORATED

Inventor： Hung Dinh Ly ,  Yu Zhang ,  Kexin Xiao

IPC: H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04W24/10 ,  H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, first control signaling configuring multiple aperiodic channel state information (A-CSI) trigger states including at least a first trigger state for a first power mode and a second trigger state for a second power mode. The UE may receive second control signaling indicating a trigger state of the multiple A-CSI trigger states. The UE may determine a current power mode of the network based on the indicated trigger state. In some examples, the UE may receive third control signaling indicating a subset of the multiple A-CSI trigger states, and the second control signaling may indicate one trigger state from the subset of A-CSI trigger states. The UE may transmit a channel state information (CSI) report based on the indicated trigger state and the current power mode of the network.

公开(公告)号：US12156059B2

公开(公告)日：2024-11-26

申请号：US17891995

申请日：2022-08-19

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Marwen Zorgui ,  Hung Dinh Ly

IPC: H04W24/08 ,  H04W72/1273 ,  H04W76/19 ,  H04W76/20

Abstract: A method for wireless communication at a user equipment (UE), includes receiving, from any one transmit and receive point (TRP) of a group of TRPs, a first radio resource control (RRC) message configuring a linkage between a first physical downlink control channel (PDCCH) candidate associated with a first monitoring occasion in a first search space (SS) set associated with a first TRP of the group of TRPs and a second PDCCH candidate associated with a second monitoring occasion in a second SS set associated with a second TRP of the group of TRPs. The method also includes receiving, from any one TRP of the group of TRPs, a dynamic indication enabling or disabling the linkage. The method further includes monitoring the first monitoring occasion for first PDCCH candidate and selectively monitoring the second monitoring occasion for the second PDCCH candidate based on whether the linkage is enabled or disabled.

公开(公告)号：US12143324B2

公开(公告)日：2024-11-12

申请号：US17553597

申请日：2021-12-16

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Gokul Sridharan

IPC: H04L5/00 ,  H04L1/08

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a base station may configure a user equipment (UE) to perform demodulation reference signal (DMRS) enhancement whereby the UE may transmit physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) repetitions with different DMRS densities (e.g., a first DMRS density configuration having a first or default DMRS pattern within a transmission time interval (TTI) that is higher than a second DMRS density configuration having fewer DMRSs than the normal DMRS pattern or no DMRSs within the TTI). The UE may identify TTIs (e.g., slots) that satisfy one or more phase continuity rules, and may perform DMRS enhancement in the identified TTIs, and may restart a mapping sequence indicated in the DMRS mapping pattern at each bundle interval boundary or when consecutive uplink symbol periods within a bundling interval do not satisfy a phase continuity condition.