公开(公告)号：US20240106503A1

公开(公告)日：2024-03-28

申请号：US17954198

申请日：2022-09-27

Applicant: QUALCOMM Incorporated

Inventor： Pinar SEN ,  Seyong PARK ,  Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Renqiu WANG ,  Peter GAAL ,  Naga BHUSHAN ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: H04B7/0456 ,  H01Q3/26 ,  H04B7/0417

CPC classification number: H04B7/046 ,  H01Q3/267 ,  H04B7/0421

Abstract: Methods and apparatuses for wireless communication for line-of-sight Multiple-Input-Multiple-Output (LOS MIMO) are described. A first pilot signal is transmitted to a second device. The first pilot signal is at least one of a constant phase pilot or a linear phase ramped pilot for estimating a misalignment of a second antenna array of the second device with respect to a first antenna array of the first device.

公开(公告)号：US20230246792A1

公开(公告)日：2023-08-03

申请号：US18002845

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Yu ZHANG ,  Pinar SEN

IPC: H04L5/00

CPC classification number: H04L5/0094 ,  H04L5/0051 ,  H04L5/0012

Abstract: In some scenarios, SRS transmission over the full SRS bandwidth may be unnecessary and/or inefficient. Therefore, a need exists for approaches to SRS transmission over less than the full SRS bandwidth. Described herein are techniques and solutions of SRS transmission using only a portion of the full SRS bandwidth, or a partial SRS bandwidth. The present disclosure provides for SRS transmission using a partial SRS bandwidth through sounding patterns that use only the partial SRS bandwidth and/or using a partial SRS bandwidth through various SRS sequence generation configured for the partial SRS bandwidth. An apparatus receives an SRS configuration indicating a full SRS bandwidth; determines a frequency hopping pattern for SRS transmission based on the SRS configuration, and the frequency hopping pattern is limited to a partial SRS bandwidth less than the full SRS bandwidth; and transmits the SRS transmission to the base station based on the frequency hopping pattern.

公开(公告)号：US20230231682A1

公开(公告)日：2023-07-20

申请号：US18001708

申请日：2021-07-16

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Tingfang JI ,  Runxin WANG ,  Pinar SEN

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0094

Abstract: Aspects for time bundling an SRS resource over a plurality of instances are disclosed. The apparatus may include a user equipment (UE). The user equipment may receive a configuration from a base station for time-bundling at least one sounding reference signal (SRS) resource. The time-bundling may be performed by the UE transmitting a plurality of SRS signals at different times using an identical center frequency and at least two different frequency resource allocations. The UE may transmit the plurality of SRS signals based on the configuration.

公开(公告)号：US20250126517A1

公开(公告)日：2025-04-17

申请号：US18990708

申请日：2024-12-20

Applicant: QUALCOMM Incorporated

Inventor： Yongjun KWAK ,  Pinar SEN ,  Hwan Joon KWON

IPC: H04W28/04 ,  H04L1/08 ,  H04L1/1607 ,  H04L1/1829 ,  H04L1/1867 ,  H04L5/00 ,  H04W72/20 ,  H04W74/00 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08 ,  H04W92/02 ,  H04W92/10

Abstract: An apparatus for wireless communication is provided. The apparatus may be a network node. The apparatus receives a set of uplink transmissions from a set of user equipments (UEs) via a first resource of a non-orthogonal channel, wherein the apparatus is unable to decode the set of uplink transmissions. The apparatus transmits a retransmission request to a subset of the set of UEs. The apparatus receives a retransmission of a first uplink transmission in the set of uplink transmissions via a second resource of the non-orthogonal channel in response to the retransmission request. The apparatus decodes a second uplink transmission in the set of uplink transmissions based on at least the retransmission of the first uplink transmission.

公开(公告)号：US20250015942A1

公开(公告)日：2025-01-09

申请号：US18708188

申请日：2022-12-15

Applicant: QUALCOMM Incorporated

Inventor： Pinar SEN ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yi HUANG ,  Alexandros MANOLAKOS

IPC: H04L5/00 ,  H04W72/232

Abstract: Method and apparatus for downlink scheduling for increased orthogonal DMRS ports and PRB bundling size. The apparatus transmits DCI comprising an antenna value associated with a DMRS port mapping configuration. The DMRS port mapping configuration comprising orthogonal codes over a frequency domain and an orthogonal code sequence having a length (N) of orthogonal codes applied in the frequency domain. The orthogonal code sequence having a value of N>2. The apparatus transmits an indication comprising a DMRS port ID field associated with the DMRS port mapping configuration. At least one of the DMRS port ID field, the orthogonal code sequence, or the antenna value configured to identify a DMRS port.

公开(公告)号：US20240380515A1

公开(公告)日：2024-11-14

申请号：US18316107

申请日：2023-05-11

Applicant: QUALCOMM Incorporated

Inventor： Pinar SEN ,  Wei YANG ,  Jing JIANG

IPC: H04L1/00

Abstract: An apparatus (e.g., a transmitter) may transmit a message and one or more retransmissions of the message in a wireless communication network. The message may include a codeword that includes information bits and error correction bits (e.g., parity bits). The one or more retransmissions may include error correction bits associated with the information bits. To improve the decoding performance at a receiver, the transmitter may apply probabilistic shaping to the one or more retransmissions. In some aspects, the apparatus transmits a first message including information bits and a first set of error correction bits associated with the information bits. The apparatus transmits at least a second message associated with the first message, wherein the second message includes a second set of error correction bits associated with the information bits and a set of probabilistic shaping bits for the second set of error correction bits.

公开(公告)号：US20230344590A1

公开(公告)日：2023-10-26

申请号：US18005092

申请日：2020-09-24

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Runxin WANG ,  Pinar SEN ,  Yu ZHANG

IPC: H04L5/00 ,  H04W72/232

CPC classification number: H04L5/0051 ,  H04L5/0012 ,  H04W72/232

Abstract: Aspects relate to sounding on a subset of available sounding resources. A user equipment (UE) may transmit a sounding reference signal (SRS) on a subset of the frequency resources available for a hop of an SRS hopping sequence. A UE may be configured to use a subset of frequency resources or the UE may autonomously identify this subset. A base station may send a bit map to a UE to indicate the subset of resources to use for a hop. Each bit of the bit map may indicate that the UE is to transmit an SRS on a particular RB or on a particular groups of RBs. The same subset of resources may be designated for each hop or different subsets of resources may be designated for different hops. An indication of the subset of resources may be provided for each hop. The subset of resources may be cycled for different hops.

公开(公告)号：US20230254832A1

公开(公告)日：2023-08-10

申请号：US18011751

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Pinar SEN ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Yu ZHANG ,  Runxin WANG

IPC: H04W72/0453 ,  H04W72/23 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0051 ,  H04W72/23

Abstract: Aspects of the disclosure relate to the use of enhanced downlink control information to communicate partial frequency sounding configuration to user equipment (UE). A UE may receive a partial frequency sounding configuration generated for the UE the downlink control information, transmit a sounding reference signal (SRS) in one or more resources configured for SRS transmission in a bandwidth used by the UE, the one or more resources being identified by the partial frequency sounding configuration, and refrain from transmitting in a portion of a set of resources configured for SRS transmission in the bandwidth used by the UE. A format for the enhanced downlink control information may be based on standards defined the downlink control information formats.

公开(公告)号：US20230254087A1

公开(公告)日：2023-08-10

申请号：US18010196

申请日：2021-06-02

Applicant: QUALCOMM Incorporated

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Pinar SEN

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0096

Abstract: A configuration to allow for an SRS resource set trigger list configuration to be updated using MAC-CE. The apparatus transmits, to a UE, an SRS resource set trigger list configuration via RRC signaling. The apparatus transmits, to the UE, an updated trigger list value via MAC-CE to update the SRS resource set trigger list configuration. A trigger state of at least one SRS resource set is updated based on the updated trigger list value. The apparatus receives, from the UE, at least one SRS based on the updated SRS resource set trigger list configuration.

公开(公告)号：US20250125928A1

公开(公告)日：2025-04-17

申请号：US18685474

申请日：2021-10-13

Applicant: QUALCOMM Incorporated

Inventor： Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Naga BHUSHAN ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Renqiu WANG ,  Pinar SEN ,  Seyong PARK ,  Krishna Kiran MUKKAVILLI ,  Yu ZHANG ,  Tingfang JI

IPC: H04L5/00 ,  H04W24/10 ,  H04W72/0453 ,  H04W72/231

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for sounding reference signal (SRS) management for a line-of-sight multiple-input multiple-output (LSM) mode. A receiving device may receive a configuration of a persistent or semi-persistent SRS resource set that configures a first number of SRS ports for a full spatial sounding mode. The receiving device may transmit a SRS on a partial sounding resource subset of the SRS resource set, the partial sounding resource subset corresponding to a partial sounding LSM mode. A transmitting device such as a base station may performing phase ramp interpolation for the partial sounding LSM mode to estimate a LSM channel between the base station and the first receiving device.