公开(公告)号：US20210344545A1

公开(公告)日：2021-11-04

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

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：US20210336662A1

公开(公告)日：2021-10-28

申请号：US17242047

申请日：2021-04-27

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wei Yang ,  Peter Gaal ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04B7/0456 ,  H04L5/00 ,  H04B7/06 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive configuration signaling indicating a parameter for generating a plurality of first orthogonal matrices, wherein the plurality of first orthogonal matrices are based at least in part on a second orthogonal matrix, and wherein a size of the second orthogonal matrix is based at least in part on a number of one or more time periods configured for conveying a payload and a number of one or more frequency tones configured for conveying the payload. The UE may generate a plurality of codebooks corresponding to the plurality of first orthogonal matrices. The UE may transmit a first portion the payload using a first sequence from a first codebook of the plurality of codebooks and a second portion of the payload using a second codebook of the plurality of codebooks.

公开(公告)号：US11159221B2

公开(公告)日：2021-10-26

申请号：US16830053

申请日：2020-03-25

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Wei Yang ,  Gokul Sridharan ,  Yi Huang

IPC: H04B7/06 ,  H04B7/0456 ,  H04W72/12 ,  H04W72/14 ,  H04B1/713 ,  H04W80/02 ,  H04L1/18 ,  H04W8/24 ,  H04W76/27

Abstract: Aspects are provided allowing UEs with non-coherent or partially coherent antennas to re-interpret TPMI received in DCI into a set of TPMIs corresponding to different subbands. The UE receives a TPMI associated with at least one first antenna and at least one second antenna which are non-coherent with each other, and the UE determines a set of TPMIs including a first and second TPMI based on the received TPMI. The set of TPMIs include at least one TPMI different from the received TPMI. The UE transmits, based on the first TPMI, from the at least one first antenna within at least one first subband. The UE also transmits, based on the second TPMI, from the at least one second antenna within at least one second subband different from the at least one first subband. Thus, full power transmission based on re-interpreted TPMI with reduced DCI overhead may result.

公开(公告)号：US11153873B2

公开(公告)日：2021-10-19

申请号：US16581168

申请日：2019-09-24

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Huilin Xu ,  Peter Pui Lok Ang ,  Heechoon Lee

IPC: H04W4/00 ,  H04W72/04 ,  H04W72/02 ,  H04W88/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determining that a first physical downlink control channel (PDCCH) candidate and a second PDCCH candidate in a control resource set (CORESET) are aligned with each other, wherein the first PDCCH candidate is a common search space (CSS) candidate and the second PDCCH candidate is a UE-specific search space (UESS) candidate; and decode downlink control information in accordance with a selected candidate, of the CSS candidate or the UESS candidate, based at least in part on a rule indicating whether the time-domain resource allocation is to be determined in accordance with the CSS candidate or the UESS candidate. Numerous other aspects are provided.

公开(公告)号：US20210314937A1

公开(公告)日：2021-10-07

申请号：US16841557

申请日：2020-04-06

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Peter Gaal ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Wei Yang

IPC: H04W72/04 ,  H04W72/14 ,  H04W52/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink transmission via at least one of a primary cell, a secondary cell, or a combination thereof. The UE may identify a feedback indication for the downlink transmission. The UE may transmit a first feedback message that includes the feedback indication via the primary cell. The UE may transmit a second feedback message that also includes the feedback indication via the secondary cell.

公开(公告)号：US11122622B2

公开(公告)日：2021-09-14

申请号：US16805514

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wei Yang ,  Peter Gaal ,  Yi Huang ,  Amir Aminzadeh Gohari ,  Seyed Ali Akbar Fakoorian

IPC: H04W74/08 ,  H04L1/18 ,  H04W72/10

Abstract: Methods, systems, and devices are described for handling transmissions or channels in wireless communications that collide with one another. The described techniques relate to handling the collision between multiple overlapping channels (e.g., two or more channels of the same priority). For example, a collision resolution configuration may include resolving the collisions among the channels of the same priority first (e.g., feedback information transmissions first, and then control information), among the channels of the same service type first (e.g., normal channels first, and then low latency channel(s)), or across all of the channels of all priorities at once. Collisions may be resolved by dropping or rescheduling overlapping information from the lower priority transmission(s) or channel(s) in consideration of the higher priority transmission(s) or channel(s), or by multiplexing or piggybacking overlapping information from a first priority transmission(s) or channel(s) with a second priority transmission(s) or channel(s).

公开(公告)号：US11121845B2

公开(公告)日：2021-09-14

申请号：US16862077

申请日：2020-04-29

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang

IPC: H04L27/20 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may cyclically shift, based at least in part on a cyclic shift index selected from a group of cyclic shift indexes, a demodulation reference signal (DMRS) sequence. The UE may transmit, on a physical uplink control channel (PUCCH), a DMRS corresponding to the shifted DMRS sequence with pi/2 binary phase shift key (BPSK) modulation. Numerous other aspects are provided.

公开(公告)号：US20210274544A1

公开(公告)日：2021-09-02

申请号：US17188973

申请日：2021-03-01

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Peter Gaal ,  Seyedkianoush Hosseini ,  Yi Huang ,  Seyed Ali Akbar Fadoorian

IPC: H04W72/14 ,  H04W72/04 ,  H04W28/02 ,  H04W52/36

Abstract: Methods, systems, and devices for wireless communications are described. The method, system, or devices for wireless communications may implement receiving a grant for a first transmission scheduled for a first set of resources, the first transmission associated with a first transmission parameter; receiving an indication to cancel the first transmission; dropping the first transmission based on receiving the indication; determining a second transmission parameter for a second transmission based on the first transmission parameter and irrespective of dropping the first transmission; and performing or receiving the second transmission according to the second transmission parameter. Alternatively, a device may receive an indication to cancel the second transmission; drop the second transmission based on receiving the indication; and refraining from rescheduling the first transmission on the first set of resources based on receiving the indication and irrespective of dropping the second transmission.

公开(公告)号：US11101965B2

公开(公告)日：2021-08-24

申请号：US16596655

申请日：2019-10-08

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Amir Aminzadeh Gohari ,  Gokul Sridharan ,  Wei Yang ,  Chun-Hao Hsu

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

Abstract: The present disclosure relates to methods and devices for communication which may include a user equipment (UE) and a base station. In one aspect, the UE may receive a trigger to measure an uplink Aperiodic Channel State Information Reference Signal (A-CSI-RS). The UE may also receive an allocation of a first resource for an uplink shared channel. Additionally, the UE can receive at least one indication for an A-CSI report to comprise a null A-CSI report. Moreover, the UE can determine whether to alter another uplink transmission. In some aspects, this determination can be based, at least in part, on whether the first resource allocated for the uplink channel overlaps in time with a second resource for the other uplink transmission.

公开(公告)号：US20210144648A1

公开(公告)日：2021-05-13

申请号：US17066644

申请日：2020-10-09

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Prashanth Haridas Hande ,  Jay Kumar Sundararajan ,  Gokul Sridharan ,  Wei Yang ,  Wanshi Chen ,  Krishna Kiran Mukkavilli ,  Allen Minh-Triet Tran ,  Joseph Patrick Burke ,  Naga Bhushan

IPC: H04W52/14 ,  H04W52/36 ,  H04W52/54

Abstract: Generally, the described techniques provide for efficiently transmitting uplink signals to a base station using shared antennas associated with different power classes. A first device may be in communications with a base station using local antennas and may identify a second device having auxiliary antennas available for transmitting uplink signals to the base station. The local and auxiliary antennas may be associated with different power classes, and the first device may transmit a message to a base station indicating that the first device is capable of transmitting using antennas associated with different power classes. The first device may then receive configurations from a base station of different transmit powers to transmit on the antennas associated with the different power classes, and the first device may transmit uplink signals to the base station in accordance with the different transmit power configurations.