公开(公告)号：US11968068B2

公开(公告)日：2024-04-23

申请号：US17331612

申请日：2021-05-26

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Saeid Sahraei ,  Krishna Kiran Mukkavilli ,  June Namgoong ,  Gokul Sridharan

IPC: H04L27/26 ,  H04L1/00

CPC classification number: H04L27/2614 ,  H04L1/0003 ,  H04L1/0009

Abstract: A transmitting device applies a first MCS to a first set of data tones that overlaps with a first set of PRTs within a plurality of tones, the first set of PRTs being associated with a first PAPR reduction signal. The transmitting device applies a second MCS to a second set of data tones that overlaps with a second set of PRTs within the plurality of tones, the second set of PRTs being associated with a second PAPR reduction signal. The transmitting device can transmit a transmission signal comprising the first set of data tones and the second set of data tones, the transmission signal using a waveform based at least in part on the first PAPR reduction signal and the second PAPR reduction signal.

公开(公告)号：US11924014B2

公开(公告)日：2024-03-05

申请号：US17449978

申请日：2021-10-05

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Ran Berliner ,  Gokul Sridharan ,  Hung Dinh Ly

IPC: H04L27/26 ,  H04W74/00 ,  H04L1/00

CPC classification number: H04L27/2636 ,  H04L27/2678 ,  H04W74/004 ,  H04W74/006 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a dynamic indication to switch from a modulation and coding scheme (MCS) table to a new MCS table. The UE may transmit, to the base station, one or more uplink communications that use a transmit waveform type associated with the new MCS table. Numerous other aspects are provided.

公开(公告)号：US11916716B2

公开(公告)日：2024-02-27

申请号：US17383201

申请日：2021-07-22

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Saeid Sahraei ,  Gokul Sridharan ,  Krishna Kiran Mukkavilli

IPC: H04L27/26 ,  H04W52/54 ,  H04W72/0453 ,  H04W72/23 ,  H04L5/00 ,  H04W52/52 ,  H04W52/24

CPC classification number: H04L27/2618 ,  H04L5/0092 ,  H04W52/247 ,  H04W52/52 ,  H04W52/54 ,  H04W72/0453 ,  H04W72/23

Abstract: Aspects of the disclosure relate to techniques for peak-to-average power ratio (PAPR) reduction based on a tone reservation (TR) algorithm. For a TR algorithm, a suitable subset of tones from among a full set of tones in a given resource allocation are reserved for use as peak reduction tones (PRT). An apparatus such as a transmission/reception point receives a set of one or more PRT sequences and stores them in memory. The transmission/reception point then determines a set of PRTs based on one or more later-received PRT sequence selection parameters. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11882080B2

公开(公告)日：2024-01-23

申请号：US17409103

申请日：2021-08-23

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Muhammad Sayed Khairy Abdelghaffar ,  Gokul Sridharan

IPC: H04B7/00 ,  H04L5/14 ,  H04L1/08

CPC classification number: H04L5/14 ,  H04L1/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration for a set of transmission time intervals (TTIs) including at least one TTI to be used for full-duplex communications. The UE may receive control signaling that indicates a frequency domain resource allocation (FDRA) for a physical uplink channel transmission in a first TTI. The UE may determine whether a second TTI is available for transmitting one or more repetitions of the physical uplink channel transmission based on comparing the FDRA to resources allocated to the second TTI. For example, the second TTI may be available if one or more physical resource blocks (PRBs) of the FDRA are non-overlapping in a frequency domain with downlink resources allocated to the second TTI. The UE may transmit the one or more repetitions in the second TTI based on the second TTI being available.

公开(公告)号：US11817924B1

公开(公告)日：2023-11-14

申请号：US17740297

申请日：2022-05-09

Applicant: QUALCOMM Incorporated

Inventor： Gokul Sridharan ,  Yi Huang ,  Hyojin Lee ,  Yu Zhang

IPC: H04B7/0456 ,  H04W72/23

CPC classification number: H04B7/0456 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit capability information to the network indicating its coherence capability for transmitting multiple layers on a single antenna port. In some cases, the indicated capability information may actually be less than the actual capability of the UE, but may indicate which transmission precoding matrix indicator (TPMI) indexes are valid, such that the UE is not expected to transmit complex waveforms resulting from too many layers per antenna port. In some examples, the UE may indicate, in the capability information, a threshold number of layers per antenna port it can support. In some examples, the UE may indicate its coherence capability on a per-rank basis. In some examples, the UE may be capable of supporting up to 8 layers per antenna port. In some cases, codebooks may be restricted to support 8 layer transmissions.

公开(公告)号：US11812453B2

公开(公告)日：2023-11-07

申请号：US17320070

申请日：2021-05-13

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Peter Gaal ,  Hwan Joon Kwon ,  Hung Dinh Ly ,  Tingfang Ji

IPC: H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04W72/53 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04L1/0003 ,  H04L5/001 ,  H04L5/0044 ,  H04L27/2614 ,  H04L27/2618 ,  H04W72/0453 ,  H04W72/23 ,  H04L1/0009

Abstract: Wireless communications systems and methods related to bandwidth-efficient utilization of peak reduction tone resource are provided. An example method of wireless communications performed by a user equipment (UE) includes receiving, from a base station in a first subband, a resource allocation indicating a set of transmission tones comprising a set of first data tones, a set of second data tones and a set of peak reduction tones (PRTs). The resource allocation can indicate the set of first data tones overlaps at least a portion of the set of PRTs at respective locations of a set of PRT locations and the set of second data tones is arranged at a set of data tone locations within a particular bandwidth. The UE can communicate, with the base station in a second subband, a data transmission using an outgoing waveform based at least in part on the resource allocation.

公开(公告)号：US20230353289A1

公开(公告)日：2023-11-02

申请号：US18125647

申请日：2023-03-23

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Gokul Sridharan ,  Wanshi Chen ,  Yu Zhang

IPC: H04L1/1829 ,  H04L1/1867

CPC classification number: H04L1/1861 ,  H04L1/1893

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) receives a first control message indicating a codeblock group (CBG) scheduling configuration for scheduling CBG-based uplink communications, where the CBG scheduling configuration includes a first mapping configuration associated with uplink communications including a single codeword and a second mapping configuration associated with uplink communications including multiple codewords. The UE receives a second control message scheduling an uplink message including a set of CBGs, where the uplink message is associated with a first codeword, a second codeword, or both. The UE then transmits the uplink message in accordance with the CBG scheduling configuration, where the set of CBGs are mapped to one of the first or second codeword in accordance with the first mapping configuration, or where the set of CBGs are mapped to the first and second codewords in accordance with the second mapping configuration.

公开(公告)号：US11778549B2

公开(公告)日：2023-10-03

申请号：US17460063

申请日：2021-08-27

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Hung Dinh Ly ,  Muhammad Sayed Khairy Abdelghaffar ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Yongjun Kwak ,  Gokul Sridharan ,  Yeliz Tokgoz ,  Wanshi Chen ,  Tingfang Ji ,  Peter Gaal

IPC: H04W52/02 ,  H04W72/23 ,  H04W72/044

CPC classification number: H04W52/0206 ,  H04W52/0232 ,  H04W72/044 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a base station may send signaling to multiple user equipments (UEs) indicating for the UEs to switch to a radio frequency bandwidth. The UEs may operate according to a reduced set of communication operations in accordance with the radio frequency bandwidth. For example, the UEs may refrain from monitoring one or more channels, may not transmit on one or more channels, or the like. The UEs may switch out of the radio frequency bandwidth based on a trigger event, such as a timer expiring, receiving an indication in a downlink control information (DCI) message, or the like.

公开(公告)号：US11777653B2

公开(公告)日：2023-10-03

申请号：US17372206

申请日：2021-07-09

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wei Yang ,  Gokul Sridharan ,  Peter Gaal ,  Tingfang Ji

IPC: H04L1/08 ,  H04W72/044

CPC classification number: H04L1/08 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications are described. A first network device (e.g., a base station) may determine, based on one or more transmissions received over a channel and a channel condition of the channel, a configuration for repeating a sequence from multiple sequences over a resource allocation. A second network device (e.g., a UE) may transmit one or more transmissions over a channel to the first network device. The first network device may transmit, to the second network device, an indication of the configuration for repeating the sequence over the resource allocation. The second network device may transmit a first instance of the sequence and a second instance of the sequence based on the configuration. The first network device may perform error correction on the data based on the received first instance of the sequence and the received second instance of the sequence.

公开(公告)号：US20230283331A1

公开(公告)日：2023-09-07

申请号：US18160875

申请日：2023-01-27

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Gokul Sridharan ,  Wei Yang ,  Taesang Yoo ,  Peter Gaal

IPC: H04B7/0456 ,  H04W52/08 ,  H04B7/06 ,  H04B7/0491

CPC classification number: H04B7/046 ,  H04W52/08 ,  H04B7/063 ,  H04B7/0491 ,  H04B7/0486 ,  H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) having partially coherent antennas may be configured for simultaneous transmissions on groups of antennas. To achieve the benefits of simultaneous transmissions using groups of antenna that are partially coherent, without having the transmissions affect each other, the UE may apply a hybrid closed-loop multiple-input multiple-output (MIMO) scheme among each antenna in the antenna groups where phase coherence can be maintained. Following the hybrid closed-loop MIMO scheme, the UE may apply a transparent diversity scheme across each antenna of the groups. Alternatively, the UE may first apply the transparent diversity scheme and next apply the hybrid closed-loop MIMO scheme. By applying a hybrid closed-loop MIMO scheme, and a transparent diversity scheme, the UE may fully realize its resources and contribute to an improved spatial diversity for a MIMO system.