公开(公告)号：US11770802B2

公开(公告)日：2023-09-26

申请号：US17472011

申请日：2021-09-10

Applicant: QUALCOMM Incorporated

Inventor： Lianghai Ji ,  Qiang Wu ,  Mehmet Izzet Gurelli ,  Weimin Duan ,  Karthik Anantha Swamy

IPC: H04W72/02 ,  H04W72/21 ,  H04W72/1263 ,  H04W84/06

CPC classification number: H04W72/02 ,  H04W72/1263 ,  H04W72/21 ,  H04W84/06

Abstract: Methods, systems, and devices for reducing latency for closed loop sidelink communications for non-terrestrial networks (NTNs) are described. In some examples, a first user equipment (UE) may transmit, to a network entity, a message requesting an allocation of sidelink resources for the first UE and an allocation of sidelink resources for a second UE. The first UE may receive, from the network entity in response to the request message, an indication of a first set of sidelink resources for the first UE. In some examples, the first UE may transmit one or more data messages to the second UE, including an indication of a second set of sidelink resources, an indication that the network entity may directly allocate the second set of sidelink resources, or both. In some example, the first UE may receive one or more data messages from the second UE on the second set of sidelink resources.

公开(公告)号：US20230262493A1

公开(公告)日：2023-08-17

申请号：US18003068

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Yuwei Ren ,  Weimin Duan ,  Huilin Xu

IPC: H04W24/08 ,  H04L5/00 ,  H04B17/318 ,  G01S5/00

CPC classification number: H04W24/08 ,  H04L5/0048 ,  H04B17/328 ,  G01S5/0036

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a method for wireless communication performed by a user equipment (UE) includes receiving cross-link interference (CLI) resource configuration information and angle-of-arrival (AoA) estimation configuration information, The method also includes receiving CLI associated with an uplink transmission transmitted by another UE, and determining a CLI value for the CLI based on the CLI resource configuration information. The method includes determining an AoA value associated with the CLI based on the AoA estimation configuration information, the AoA value corresponding to an estimated AoA at the UE associated with the uplink transmission. The method further includes transmitting CLI report data indicating the determined CLI value and AoA report data indicating the estimated AoA value. Other aspects and features are also claimed and described.

公开(公告)号：US11677524B2

公开(公告)日：2023-06-13

申请号：US16949694

申请日：2020-11-11

Applicant: QUALCOMM INCORPORATED

Inventor： Weimin Duan ,  Huilin Xu ,  Alexandros Manolakos ,  June Namgoong ,  Muhammad Sayed Khairy Abdelghaffar

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0023

Abstract: Wireless communications systems and methods related to determining a QCL for receiving a reference signal are provided. A user equipment (UE) determines a QCL configuration for receiving a reference signal during a first time period based on a transmit beam direction to be used for transmission during the first time period. The user equipment receives the reference signal using a first receive beam direction based on the QCL configuration while transmitting a first communication signal using the transmit beam direction in a common frequency band during the first time period.

公开(公告)号：US11638217B2

公开(公告)日：2023-04-25

申请号：US17066115

申请日：2020-10-08

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Muhammad Sayed Khairy Abdelghaffar ,  Pavan Kumar Vitthaladevuni ,  Krishna Kiran Mukkavilli ,  Runxin Wang

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/044 ,  H04W72/04 ,  H04B7/0404

Abstract: This disclosure provides methods, devices and systems for channel sounding for wireless communications. Some implementations more specifically relate to scheduling sounding reference signal (SRS) resource sets for wireless devices having more than 4 receive (RX) antenna ports. In some implementations, a base station may determine an antenna switching capability of a user equipment (UE). The antenna switching capability indicates a number of RX antenna ports of the UE. The base station schedules a number of SRS resource sets for the UE based at least in part on the number of RX antenna ports in excess of four. For example, the number of RX antenna ports may be equal to 8. As another example, the number of RX antenna ports may be equal to 6. The base station further receives, from the UE, uplink transmissions of one or more SRS resources for each of the scheduled SRS resource sets.

公开(公告)号：US11424884B2

公开(公告)日：2022-08-23

申请号：US17033656

申请日：2020-09-25

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy Abdelghaffar ,  Alexandros Manolakos ,  Weimin Duan ,  Pavan Kumar Vitthaladevuni ,  Krishna Kiran Mukkavilli

IPC: H04W72/04 ,  H04L5/00

Abstract: An apparatus for wireless communication transmits a demodulation reference signal (DMRS) for at least eight orthogonal DMRS ports in a single symbol of at least one slot. The apparatus also transmits data in the at least one slot. The apparatus may correspond to a base station transmitting DMRS and downlink data. The apparatus may correspond to a user equipment (UE) transmitting DMRS and uplink data. The apparatus may bundle the DMRS across multiple slots with a bundled DMRS including a first set of the DMRS ports in a first single symbol of a first slot and a second set of the DMRS ports in a second single symbol of a second slot. The apparatus may transmit the DMRS in only a single slot in a physical resource block group (PRG) including two or more resource blocks using four frequency domain orthogonal cover codes (FD-OCC) and a frequency offset pattern.

公开(公告)号：US11350269B2

公开(公告)日：2022-05-31

申请号：US17021704

申请日：2020-09-15

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Muhammad Sayed Khairy Abdelghaffar ,  Pavan Kumar Vitthaladevuni ,  Krishna Kiran Mukkavilli

IPC: H04W8/24 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for the establishment of a communication link between a base station and a user equipment (UE). The UE may have a spatial partial reciprocity capability. The UE may be configured to determine antenna cross-correlation information for at least a first subset of antenna elements in the UE. The cross-correlation information may include one or more correlation parameters (e.g., correlation coefficients), a correlation model, or both. The UE may transmit sounding reference signals for a second set of antenna elements in accordance with the spatial partial reciprocity capability. The UE may also transmit an indication of the cross-correlation information for at least the first subset of antenna elements of the UE. The base station may use such information to derive correlation parameters for the unsounded antennas and determine precoders for downlink communications.

公开(公告)号：US20210136566A1

公开(公告)日：2021-05-06

申请号：US17021704

申请日：2020-09-15

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Muhammad Sayed Khairy Abdelghaffar ,  Pavan Kumar Vitthaladevuni ,  Krishna Kiran Mukkavilli

IPC: H04W8/24 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for the establishment of a communication link between a base station and a user equipment (UE). The UE may have a spatial partial reciprocity capability. The UE may be configured to determine antenna cross-correlation information for at least a first subset of antenna elements in the UE. The cross-correlation information may include one or more correlation parameters (e.g., correlation coefficients), a correlation model, or both. The UE may transmit sounding reference signals for a second set of antenna elements in accordance with the spatial partial reciprocity capability. The UE may also transmit an indication of the cross-correlation information for at least the first subset of antenna elements of the UE. The base station may use such information to derive correlation parameters for the unsounded antennas and determine precoders for downlink communications.

公开(公告)号：US20210105106A1

公开(公告)日：2021-04-08

申请号：US17061396

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Peter Gaal

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described that provide for multiple instances of aperiodic tracking reference signals (TRSs) that use a same set of large-scale channel properties. If two or more aperiodic TRS transmissions are triggered by downlink control information from a base station with a same transmission configuration indicator (TCI) state, a UE that receives the two or more aperiodic TRS transmissions may measure the multiple instances of the aperiodic TRS transmissions assuming that the same large scale parameters or properties can be inferred from each of the aperiodic TRS transmissions. The UE may then update one or more time tracking parameters, frequency tracking parameters, or combinations thereof, based on the same large scale transmission parameters being used for the multiple instances of the aperiodic TRS transmissions.

公开(公告)号：US12298412B2

公开(公告)日：2025-05-13

申请号：US17726919

申请日：2022-04-22

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Yuxiang Peng ,  Qiang Wu ,  Mehmet Izzet Gurelli ,  Jun Ma ,  Huilin Xu ,  Lianghai Ji ,  Karthik Anantha Swamy ,  Mohamad Sayed Hassan

IPC: G01S19/25 ,  H04L5/00 ,  H04W24/10 ,  H04W64/00 ,  H04W84/06

Abstract: Techniques are described for supporting user equipment (UE) positioning in a non-terrestrial network (NTN). To allow calculating a position/location of a UE based on reference signal (RS) measurements to and from one satellite (or a terrestrial base station), a device may be configured to calculate a doppler measurement and a range measurement and report such measurements to be used by a location server to calculate a UE position. An example device may receive a first RS (with the first RS being one of a positioning reference signal (PRS) or a sounding reference signal (SRS)), receive a second RS associated with the first RS, calculate a doppler measurement based on one or both of the first RS or the second RS, and report the doppler measurement. The doppler measurement (such as a measured frequency offset) may be used by a location server to calculate a UE position on the earth surface.

公开(公告)号：US12273175B2

公开(公告)日：2025-04-08

申请号：US17772363

申请日：2020-11-25

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Alexandros Manolakos ,  Weimin Duan ,  June Namgoong ,  Muhammad Sayed Khairy Abdelghaffar

IPC: H04B7/06 ,  H04B7/08 ,  H04W24/08 ,  H04W72/044 ,  H04W72/21

Abstract: Aspects relate to measuring downlink beam quality in the presence of self-interference when operating in a full duplex mode configured for concurrent transmission and reception within an overlapping bandwidth. A user equipment (UE) may communicate with a base station over one or more of a plurality of uplink beams and downlink beams. For each uplink beam, the UE may obtain beam quality measurements associated with each of the downlink beams to identify a set of usable downlink beams. The UE may further transmit a report to the base station indicating the set of usable downlink beams for at least one uplink beam.