公开(公告)号：US11722188B1

公开(公告)日：2023-08-08

申请号：US17666755

申请日：2022-02-08

Applicant: QUALCOMM Incorporated

Inventor： Pinar Sen ,  Naga Bhushan ,  Peter Gaal ,  Seyong Park ,  Renqiu Wang ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Hwan Joon Kwon ,  Muhammad Sayed Khairy Abdelghaffar

IPC: H04B7/0456

CPC classification number: H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may identify a translational or rotational misalignment between a first antenna array of the first wireless device and a second antenna array of a second wireless device that is in line-of-sight (LoS) wireless communication with the first wireless device via a channel. The first wireless device may update a channel matrix for the channel based on the translational or rotational misalignment, where the first wireless device may update the channel matrix with one or more beam steering metrics of the first antenna array so as to improve a beam alignment between the first antenna array and the second antenna array. The first wireless device may communicate with the second wireless device in accordance with the updated channel matrix.

公开(公告)号：US20230156762A1

公开(公告)日：2023-05-18

申请号：US17530354

申请日：2021-11-18

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Muhammad Sayed Khairy Abdelghaffar ,  Abdelrahman Mohamed Ahmed M Ibrahim ,  Krishna Kiran Mukkavilli ,  Joseph Patrick Burke ,  Tingfang Ji ,  Renqiu Wang ,  Hwan Joon Kwon

IPC: H04W72/08 ,  H04L5/14

CPC classification number: H04W72/082 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communication are described to estimate interference for concurrent uplink and downlink communications based on an indication of one or more one or more characteristics of an interfering uplink signal communicated between a base station and a second user equipment (UE). The base station or the second UE may transmit, to a first UE, an indication of one or more characteristics of an uplink signal, such as a baseband of the uplink signal or one or more parameters of the uplink signal. The first UE may use the characteristic(s) of the uplink signal to estimate the baseband of the uplink signal and cancel interference associated with the uplink signal. For example, the first UE may use the baseband signal to estimate the interference and may subtract the estimated interference from a downlink signal received at the first UE.

公开(公告)号：US11641262B2

公开(公告)日：2023-05-02

申请号：US16896150

申请日：2020-06-08

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Renqiu Wang ,  Hao Xu ,  Seyong Park

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/1812 ,  H04L1/1829 ,  H04W72/14

Abstract: Aspects of the disclosure relate to implied and explicit mapping of uplink (UL) resources for acknowledgment communications from a user equipment (UE). In some examples disclosed herein, implied mapping may include indexing of information elements in a downlink (DL) communication. The explicit mapping may include information elements in the DL communication configured to explicitly provide a location of an UL resource. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20230112468A1

公开(公告)日：2023-04-13

申请号：US17450240

申请日：2021-10-07

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Muhammad Sayed Khairy Abdelghaffar ,  Abdelrahman Mohamed Ahmed Mohamed Ibrahim ,  Krishna Kiran Mukkavilli ,  Joseph Patrick Burke ,  Tingfang Ji ,  Renqiu Wang

IPC: H04W72/08 ,  H04W72/04 ,  H04B1/7107

Abstract: Systems, methods, and devices for wireless communication that support mechanisms signaling non-linearities to a victim user equipment (UE) for interference cancellation in a wireless communication system. A victim UE may experience interference from an uplink transmission by an aggressor UE to a base station. The victim UE may obtain a power amplifier model associated with the aggressor UE. The power amplifier may include a non-linearity model of a power amplifier of the aggressor UE causing the interference on the victim UE. The power amplifier model obtained by the victim UE may be dependent on various parameters, such as a transmit power used by the aggressor UE to transmit the uplink transmission causing the interference. Based on the aggressor UE transmit power, the victim UE may select parameters for power amplifier model and may estimate the interference caused by the uplink transmission for interference cancellation.

公开(公告)号：US11611379B2

公开(公告)日：2023-03-21

申请号：US17246374

申请日：2021-04-30

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  Shimman Arvind Patel ,  Krishna Kiran Mukkavilli ,  June Namgoong ,  Taesang Yoo ,  Renqiu Wang

IPC: H04B7/04 ,  H04B7/0456 ,  H04W72/14 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described in which a base station may identify a null space matrix that lies within a null space of an effective channel matrix for communications between the base station and a user equipment (UE). An indication of the null space matrix may be provided to the UE, and the null space matrix used to determine modifications to a precoding matrix. The base station and UE may determine a redistribution matrix that provides a reduced variance of transmission powers for a number of transmission channels, where a product of the null space matrix and the redistribution matrix may be computed and added to the precoding matrix to generate a modified precoding matrix. The modified precoding matrix may be used to generate the communications from the base station and UE with reduced power variance across channels.

公开(公告)号：US11412487B2

公开(公告)日：2022-08-09

申请号：US16550621

申请日：2019-08-26

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wei Zeng ,  Jing Jiang ,  Tingfang Ji

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/26 ,  H04L41/0896 ,  H04L27/00

Abstract: Methods, systems, and devices for wireless communication are described that provide for uplink channel multiplexing and waveform selection. Uplink channels to be transmitted from one or more user equipment (UEs) to a base station are multiplexed together or separately into an uplink subframe. Each UE is capable of using different waveforms to transmit different channels. Reference signals are communicated according to an RS pattern, which is symmetric across uplink and downlink channels.

公开(公告)号：US20220104245A1

公开(公告)日：2022-03-31

申请号：US17483893

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Muhammad Sayed Khairy Abdelghaffar ,  Wanshi Chen ,  Hwan Joon Kwon ,  Renqiu Wang ,  Hung Dinh Ly ,  Ahmed Attia Abotabl ,  Yuchul Kim ,  Abdelrahman Mohamed Ahmed M Ibrahim

IPC: H04W72/12 ,  H04L5/14 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a base station may dynamically and reliably indicate that pending transmissions are part of a full duplex operation via downlink control information (DCI) designs described herein. For example, a base station may transmit, to a user equipment (UE) a DCI including no more than one downlink grant and no more than one uplink grant for a full duplex operation. In some examples, the base station may transmit a first-stage DCI including partial information, and second-stage DCIs including full uplink and downlink grants for a full duplex operation. In some examples, the base station may configure periodic or semi-periodic uplink and downlink resources that may overlap in time, and may dynamically indicate, to the UE, whether the overlapping uplink and downlink resources are scheduled for a full duplex operation.

公开(公告)号：US11290147B2

公开(公告)日：2022-03-29

申请号：US16937364

申请日：2020-07-23

Applicant: QUALCOMM Incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Peter Pui Lok Ang ,  Huilin Xu ,  Hung Dinh Ly ,  Renqiu Wang

IPC: H04B1/7143 ,  H04L1/18 ,  H04L5/00 ,  H04W24/08 ,  H04W72/04 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit uplink transmissions according to a frequency hopping pattern. The UE may identify that a first set of uplink transmissions are to be transmitted to a base station by a first set of resources (e.g., a first set of slots, a first set of frequency resources) as indicated by the frequency hopping pattern. The UE may further identify, based on the frequency hopping pattern, that a second set of uplink transmissions are to be transmitted to the base station by a second set of resources (e.g., a second set of slots, a second set of frequency resources). The first set of slots and the second set of slots may each include more than one slot. Additionally, the first and second set of resources may be within a same bandwidth part or in different bandwidth parts.

公开(公告)号：US11265116B2

公开(公告)日：2022-03-01

申请号：US16678910

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Wanshi Chen ,  Hao Xu ,  Peter Gaal ,  Tao Luo ,  Sony Akkarakaran

IPC: H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04B7/06 ,  H04L1/12 ,  H04W72/02

Abstract: A method and apparatus for enabling an UE to selecting acknowledgement/non-acknowledgement (ACK/NACK) resources from a subset of a gNB resource pool. The example method may receive, from an gNB, a radio resource control (RRC) configuration indicating a UE-specific resource set that is a subset of a gNB resource pool. The UE may determine one or more ACK/NACK resources from the UE-specific resource set for an upcoming physical uplink control channel (PUCCH). In some aspects, the UE may determine the one or more ACK/NACK resources based on receiving, from the gNB, a physical downlink control channel (PDCCH) including a corresponding ACK/NACK resource configuration. In other aspects, the RRC may contain multiple resource subsets and the UE may determine the one or more ACK/NACK resources based on determining a size of a payload for a UCI to be transmitted on the PUCCH. The aspects may thus enable dynamic ACK/NACK resource allocation.

公开(公告)号：US11251923B2

公开(公告)日：2022-02-15

申请号：US16022431

申请日：2018-06-28

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Seyong Park ,  Peter Gaal ,  Wanshi Chen

IPC: H04L5/00 ,  H04L1/16 ,  H04W72/04 ,  H04L1/18 ,  H04W72/12

Abstract: Systems, methods, computer-readable medium, and apparatus are disclosed that allow for control information to be provided in an efficient manner during short burst transmission. For example, an apparatus may be configured to receive downlink control information (DCI) that indicates an allocated resource from a base station. The apparatus may also receive data from the base station. The apparatus may generate a cyclically shifted sequence that corresponds to a sequence that is cyclically shifted based on at least one of an ACK or NACK for the received data and a SR. The apparatus may then transmit the cyclically shifted sequence in the allocated resource within one symbol period of a slot of a subframe to the base station. Thus, by transmitting the SR and the ACK/NACK in one symbol, control information for short burst transmissions can be provided in a more temporally efficient manner without adding excessive complexity to the UE.