公开(公告)号：US11588607B2

公开(公告)日：2023-02-21

申请号：US17204682

申请日：2021-03-17

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Abdelrahman Mohamed Ahmed Mohamed Ibrahim ,  Muhammad Sayed Khairy Abdelghaffar ,  Huilin Xu ,  Krishna Kiran Mukkavilli

IPC: H04W52/36 ,  H04W72/14 ,  H04W76/27 ,  H04L5/14 ,  H04L27/26

Abstract: The apparatus, in some aspects may be a UE configured to communicate, in a FD mode, with at least one base station. The UE may further be configured to determine, when communicating with the at least one base station in the FD mode, FD UE assistance information including one or more FD UE assistance parameters. The UE may also be configured to transmit, to the at least one base station, an indication of the determined FD UE assistance information including the one or more FD UE assistance parameters. In some aspects, the apparatus may be a base station configured to communicate with at least one UE operating in a FD mode. The base station may further be configured to receive, from the at least one UE, an indication of FD UE assistance information including one or more FD UE assistance parameters.

公开(公告)号：US20230044521A1

公开(公告)日：2023-02-09

申请号：US17758417

申请日：2020-12-14

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Muhammad Sayed Khairy Abdelghaffar ,  Alexandros Manolakos ,  Hung Dinh Ly ,  Huilin Xu ,  Krishna Kiran Mukkavilli ,  Wanshi Chen ,  Tingfang JI ,  Shimman Arvind Patel

IPC: H04L5/14 ,  H04L5/16 ,  H04W74/08

Abstract: Systems and methods in which one or more wireless communication stations implement duplex-mode remediation to facilitate the signal communication when an issue with respect to self-interference is identified are described. Duplex-mode remediation may be implemented for various communication scenarios, such as for random access phase communications, for communications having different priorities, etc. A wireless communication station may implement one or more changes with respect to the full duplex operation of the wireless communication station based upon determining that an issue with respect to self-interference may be, or is being, experienced, such as to provide for a wireless communication station operating in an in-band full duplex mode to increase interference cancellation and/or to fall back to a sub-band full duplex mode or a half duplex mode, to provide for a wireless communication station operating in a sub-band full duplex mode to increase interference cancellation and/or to fall back to a half duplex mode.

公开(公告)号：US20230040839A1

公开(公告)日：2023-02-09

申请号：US17886120

申请日：2022-08-11

Applicant: QUALCOMM Incorporated

Inventor： Jing JIANG ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Kambiz Azarian Yazdi ,  Krishna Kiran Mukkavilli ,  John Edward Smee

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/00 ,  H04L1/16 ,  H04L5/14

Abstract: Methods, systems, and devices are described for fountain hybrid automatic repeat request (HARQ) for reliable low latency communication. A wireless device may transmit a data block based on a low latency operational mode. The device may then transmit a number of redundancy versions of the data block prior to determining whether an acknowledgement (ACK) has been received. In some examples the ACK may be an augmented ACK, which may be based on the number of redundancy versions received prior to successfully decoding the data block, and which may include an additional resource request. In some examples, the device may select an updated modulation and coding scheme (MCS) based on the augmented ACK. In some examples, the device may increase a number of frequency resources (e.g., component carriers) used for transmission based on the augmented ACK.

公开(公告)号：US11516058B2

公开(公告)日：2022-11-29

申请号：US17199788

申请日：2021-03-12

Applicant: QUALCOMM Incorporated

Inventor： Krishna Kiran Mukkavilli ,  June Namgoong ,  Taesang Yoo ,  Naga Bhushan ,  Tingfang Ji

IPC: H04L27/26 ,  H04W76/27 ,  H04W72/04

Abstract: Systems and methods providing peak to average power ratio (PAPR) shaping for PAPR reduction using, for example, an extra-allocation peak reduction tone (PRT) signal processing technique are described. Carrier resources outside of carrier resources allocated for data transmission may be utilized for extra-allocation PRTs. Use of extra-allocation carrier resources for transmitting extra-allocation PRTs may be subject to a power threshold (T). The extra-allocation carrier resources and/or extra-allocation PRTs may be configured for peak to average power shaping of signal transmissions by a wireless device, such as base stations, user equipments (UEs), etc. Other aspects and features are also claimed and described.

公开(公告)号：US11489646B2

公开(公告)日：2022-11-01

申请号：US16456876

申请日：2019-06-28

Applicant: Qualcomm Incorporated

Inventor： Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Kambiz Azarian Yazdi ,  Krishna Kiran Mukkavilli ,  John Edward Smee

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/00 ,  H04L1/16 ,  H04L5/14

Abstract: Methods, systems, and devices are described for fountain hybrid automatic repeat request (HARD) for reliable low latency communication. A wireless device may transmit a data block based on a low latency operational mode. The device may then transmit a number of redundancy versions of the data block prior to determining whether an acknowledgement (ACK) has been received. In some examples the ACK may be an augmented ACK, which may be based on the number of redundancy versions received prior to successfully decoding the data block, and which may include an additional resource request. In some examples, the device may select an updated modulation and coding scheme (MCS) based on the augmented ACK. In some examples, the device may increase a number of frequency resources (e.g., component carriers) used for transmission based on the augmented ACK.

公开(公告)号：US11469796B2

公开(公告)日：2022-10-11

申请号：US16996321

申请日：2020-08-18

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Krishna Kiran Mukkavilli

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/04 ,  H04B7/0426

Abstract: A user equipment (UE) receives a maximum downlink (DL) Multiple-Input Multiple-Output (MIMO) layer configuration for DL communications, such as control signals or data signals, in one or more bandwidth parts (BWPs) and a positioning reference signal (PRS) configuration for receiving DL PRS. The UE receives DL PRS in an active BWP using a number of reception antennas based on, e.g., at least equal to, the maximum number of DL MIMO layers in the active bandwidth part. The UE may be configured to transmit uplink (UL) PRS, e.g., SRS for positioning purposes, using at least a maximum number of transmission antennas that is configured for communications purposes.

公开(公告)号：US11451425B2

公开(公告)日：2022-09-20

申请号：US17185603

申请日：2021-02-25

Applicant: QUALCOMM Incorporated

Inventor： Gokul Sridharan ,  Saeid Sahraei ,  June Namgoong ,  Peter Gaal ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Wei Yang

IPC: H04L25/03 ,  H04L25/49 ,  H04L27/26 ,  H04B1/71 ,  H04W72/04

Abstract: Techniques for peak-to-average power ratio (PAPR) reduction are described. Wireless devices may use one or more PAPR shaping resources, such as expanded bandwidth and/or pulse-shaping filtering, for shaping a signal to reduce PAPR. For example, expanded bandwidth may be utilized for adding a cyclic affix (CA), such as may comprise a cyclic prefix (CP), cyclic suffix (CS), etc., and combinations thereof, to a frequency domain data signal to provide a CP augmented frequency domain data signal used to generate a reduced PAPR time domain data signal. Additionally or alternatively, pulse-shaping filtering may be applied to a frequency domain signal to provide a pulse-shaped frequency domain data signal used to generate a reduced PAPR time domain data signal. Other aspects and features are also claimed and described.

公开(公告)号：US11438038B1

公开(公告)日：2022-09-06

申请号：US17178175

申请日：2021-02-17

Applicant: QUALCOMM Incorporated

Inventor： June Namgoong ,  Taesang Yoo ,  Naga Bhushan ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04L23/02 ,  H04B7/0452 ,  H04B7/0456

Abstract: A base station may apply a nonlinear precoding to data for MU-MIMO transmission to a set of paired UEs to generate a first set of precoder symbols, and apply a linear precoding to the first set of precoder symbols to generate a second set of precoder symbols using a linear precoding matrix. The base station may normalize the second set of precoder symbols, and scale the second set of precoder symbols, before transmission of the data, using a scaling factor based on one or more of modulation symbols or a channel matrix. The base station may apply the linear precoding to DMRS associated with the data. The base station may transmit the second set of precoder symbols based on the second set of precoder symbols and the DMRS to the set of paired UEs.

公开(公告)号：US11412521B1

公开(公告)日：2022-08-09

申请号：US17190262

申请日：2021-03-02

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Yeliz Tokgoz ,  Taesang Yoo ,  Naga Bhushan ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04W72/08 ,  H04W72/04

Abstract: A method of wireless communications by a user equipment (UE) includes receiving location-based downlink interference assistance information according to a current geolocation of the UE. The method also includes estimating downlink interference according to the location-based downlink interference assistance information.

公开(公告)号：US11374711B2

公开(公告)日：2022-06-28

申请号：US16538548

申请日：2019-08-12

Applicant: QUALCOMM INCORPORATED

Inventor： Joseph Binamira Soriaga ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Pavan Kumar Vitthaladevuni ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04L5/00 ,  H04B7/0452 ,  H04B7/06

Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal (SRS) to the base station. The base station characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. As part of applying the channel information, the base station forms the beam to the UE based on the uplink channel information obtained from the SRS. The UE may include an array of antennas, each UE transmitting a different SRS that the base station receives and uses to characterize the downlink. Multiple UEs (or a single UE with multiple antennas) transmit SRS at the same time and frequency allocation (non-orthogonal), but with each sending its own unique SRS. Further, multiple UEs (or a single UE with multiple antennas) may send their SRS at unique time/frequency allocations (orthogonal).