公开(公告)号：US11877145B2

公开(公告)日：2024-01-16

申请号：US17656856

申请日：2022-03-28

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Krishna Kiran Mukkavilli

IPC: H04W56/00 ,  H04L43/0864 ,  H04W24/08

CPC classification number: H04W56/0015 ,  H04L43/0864 ,  H04W24/08

Abstract: Techniques are provided for calibrating group delay for a low-tier UE by leveraging the relatively high accuracy of RTT positioning for a premium UE. This can enable online/in-field group delay calibration of low-tier UEs, allowing for low-tier UEs to be calibrated when needed. Depending on desired functionality, techniques for calibration may include the use of RTT measurements with a base station, or an RTT measurement between the low-tier UE and the premium UE.

公开(公告)号：US20230400549A1

公开(公告)日：2023-12-14

申请号：US17836777

申请日：2022-06-09

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Hyojin Lee ,  Seyong Park

IPC: G01S7/00 ,  G01S13/56 ,  G01S13/00

CPC classification number: G01S7/006 ,  G01S13/56 ,  G01S13/003

Abstract: Radio frequency (RF) sensing of a target object by a wireless network is supported by a sensing node and a network node using sensing assistance data. The sensing assistance data may include information for Doppler estimation from received RF signals. The information for Doppler estimation, for example, may include an indication of phase coherency of RF signals, such as phase coherence found in positioning reference signal (PRS) resources, resource sets, transmission reception points (TRPs), frequency layer or any combination thereof. The sensing assistance data may include an association of PRS resources and reference point objects (RPOs) so RF signals reflected from the RPOs may be excluded from the sensing measurements. The sensing assistance data may include beam pattern information for PRS resources for beam coordination for RF sensing.

公开(公告)号：US20230337132A1

公开(公告)日：2023-10-19

申请号：US17724373

申请日：2022-04-19

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04W72/12

CPC classification number: H04W52/0216 ,  H04W72/1289 ,  H04W52/0229

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a time period during which the UE is configured to receive grants scheduling communications for the UE, wherein the grants are associated with a first grant format type. The UE may determine that the grants include a feedback process identifier exceeding a threshold value. The UE may maintain a power saving state of a discontinuous reception procedure for a feedback process associated with the feedback process identifier during the time period based at least in part on the feedback process identifier exceeding the threshold value.

公开(公告)号：US20230319900A1

公开(公告)日：2023-10-05

申请号：US17712681

申请日：2022-04-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W72/02 ,  H04W72/04

CPC classification number: H04W74/0841 ,  H04W74/0866 ,  H04W72/02 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a waveform threshold for selecting a waveform type for transmitting a message of a random access procedure. The UE may select the waveform type for the message of the random access procedure based on the waveform threshold and a value associated with a power of signals received at the UE. The UE may transmit the message of the random access procedure to a network entity according to the waveform type selected for the message.

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.