公开(公告)号：US12063137B2

公开(公告)日：2024-08-13

申请号：US17643540

申请日：2021-12-09

Applicant: QUALCOMM Incorporated

Inventor： Raviteja Patchava ,  Jun Ma ,  Morteza Soltani

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2697 ,  H04L5/0007 ,  H04L27/2636

Abstract: Certain aspects of the present disclosure provide techniques for hybrid modulation and demodulation, which may include multiplexing and demultiplexing different waveform types. An example method includes receiving a time-domain waveform from a transmitting entity and converting the time-domain waveform to a frequency domain. The method also includes identifying a first set of time and frequency resources associated with converted first information and a second set of time and frequency resources associated with second information in time and frequency resources of an orthogonal frequency domain multiplexing (OFDM) resource grid in a time-frequency domain. The method further includes decoding the first set of time and frequency resources to generate first information from the converted first information. For certain aspects, the first information may be precoded with an orthogonal time frequency space (OTFS) modulation.

公开(公告)号：US12041667B2

公开(公告)日：2024-07-16

申请号：US17003835

申请日：2020-08-26

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng Wang ,  Iyab Issam Sakhnini ,  Dan Zhang ,  Peter Gaal ,  Jun Ma ,  Huilin Xu

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/044 ,  H04W74/00 ,  H04W74/0833

CPC classification number: H04W74/0841 ,  H04L5/0041 ,  H04L5/0048 ,  H04W72/046

Abstract: Certain aspects of the present disclosure provide techniques for wireless communication. A method that may be performed by a base station (BS), the method including determining a plurality of root sets, wherein each root set of the plurality of root sets comprise at least a first root and a second root. In some examples, the method includes transmitting signaling that indicates the plurality of root sets.

公开(公告)号：US12022307B2

公开(公告)日：2024-06-25

申请号：US17447115

申请日：2021-09-08

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Peter Gaal ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Ayan Sengupta ,  Bharat Shrestha ,  Jun Ma ,  Umesh Phuyal

IPC: H04W24/08 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04L5/0048

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a duration of a first gap that precedes a reference signal, based at least in part on a polarization of the reference signal. The UE may determine a duration of a second gap that succeeds the reference signal, based at least in part on the polarization of the reference signal. The UE may perform a measurement of the reference signal based at least in part on the first gap and the second gap. Numerous other aspects are provided.

公开(公告)号：US12010056B2

公开(公告)日：2024-06-11

申请号：US17453814

申请日：2021-11-05

Applicant: QUALCOMM Incorporated

Inventor： Anantha Krishna Karthik Nagarajan ,  Jun Ma ,  Morteza Soltani ,  Xiaoxia Zhang ,  Iyab Issam Sakhnini ,  Wooseok Nam ,  Tao Luo ,  Peter Gaal ,  Juan Montojo

IPC: H04W72/04 ,  H04L5/00 ,  H04W76/00 ,  H04W88/08

CPC classification number: H04L5/0048 ,  H04L5/006

Abstract: Certain aspects of the present disclosure provide techniques for demodulation reference signal (DMRS) sequence selection. One aspect provides a method for wireless communication by a first wireless node. The method generally includes selecting a type of DMRS sequence to be used for communication with a second wireless node based on a signal quality associated with the communication, receiving a message having the type of DMRS sequence, and performing channel estimation based on the DMRS sequence using the message.

公开(公告)号：US12010049B2

公开(公告)日：2024-06-11

申请号：US17133537

申请日：2020-12-23

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Juan Montojo ,  Xiaoxia Zhang ,  Jun Ma ,  Zhifei Fan

IPC: H04J11/00 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04L5/0037 ,  H04J11/0073 ,  H04W56/0035 ,  H04J2011/0096

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may monitor for a transmission of a synchronization signal block that includes a first portion generated using a first waveform type and a second portion using a second waveform type that is different than the first waveform type. The wireless device may detect the first portion of the synchronization signal block based on the first waveform type used for the first portion. After detecting the first portion of the synchronization signal block, the wireless device may process the second portion of the synchronization signal block based on information obtained from the first portion of the synchronization signal block. The information obtained from the first portion of the synchronization signal block may include timing information, frequency information, or both.

公开(公告)号：US11949543B1

公开(公告)日：2024-04-02

申请号：US17934427

申请日：2022-09-22

Applicant: QUALCOMM Incorporated

Inventor： Mohamad Sayed Hassan ,  Jun Ma ,  Lianghai Ji ,  Liangping Ma ,  Huilin Xu ,  Weimin Duan ,  Karthik Anantha Swamy ,  Qiang Wu

IPC: H04L27/26

CPC classification number: H04L27/2615 ,  H04L27/2636

Abstract: The apparatus may be provided to improve a PAPR in at least one of a single-carrier FDM signal or DFT-s-OFDM. The apparatus may be configured to encode a set of information bits with a channel encoder; generate, based on a set of encoded bits from the channel encoder, a set of amplitude symbols using a distribution matching function; generate a set of modulated symbols based on the set of amplitude symbols; and transmit, to a second device, a signal based on the set of modulated symbols. An apparatus may be configured to receive, from a first device, a signal based on a set of modulated symbols and derive a set of encoded bits based on the received set of modulated symbols using a distribution matching function.

公开(公告)号：US11943043B2

公开(公告)日：2024-03-26

申请号：US17302516

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng Wang ,  Peter Gaal ,  Alberto Rico Alvarino ,  Jun Ma ,  Qiang Wu ,  Liangping Ma ,  Ayan Sengupta ,  Dan Zhang

IPC: H04B7/185 ,  H04W72/0453 ,  G01S19/29 ,  H04W88/16

CPC classification number: H04B7/18532 ,  H04W72/0453 ,  G01S19/29 ,  H04W88/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a transmission frequency for an uplink transmission based at least in part on a reference point for the uplink transmission, the reference point being associated with one of: a satellite that provides a cell covering the user equipment, the satellite being associated with a non-terrestrial network, or a gateway associated with the satellite; and transmit the uplink transmission based at least in part on the transmission frequency. Numerous other aspects are provided.

公开(公告)号：US11937256B2

公开(公告)日：2024-03-19

申请号：US17301733

申请日：2021-04-13

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Iyab Issam Sakhnini ,  Qiang Wu ,  Jun Ma ,  Mehmet Izzet Gurelli

IPC: H04W72/23 ,  H04L1/00 ,  H04W72/0446 ,  H04W72/1263

CPC classification number: H04W72/23 ,  H04L1/0068 ,  H04W72/0446 ,  H04W72/1263

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a multi-slot grant for one of uplink communication or downlink communication. The UE may communicate in the multi-slot grant based at least in part on information that provides an indication of one or more time gaps for the multi-slot grant. Numerous other aspects are provided.

公开(公告)号：US20240089023A1

公开(公告)日：2024-03-14

申请号：US17944036

申请日：2022-09-13

Applicant: QUALCOMM Incorporated

Inventor： Jun Ma ,  Danlu Zhang ,  Qiang Wu ,  Lianghai Ji ,  Liangping Ma ,  Huilin Xu ,  Mohamad Sayed Hassan ,  Karthik Anantha Swamy ,  Weimin Duan

IPC: H04J13/16 ,  H04J11/00 ,  H04W74/08

CPC classification number: H04J13/16 ,  H04J11/00 ,  H04W74/0833 ,  H04W88/06

Abstract: Methods, systems, and devices for wireless communication at a user equipment (UE) are described. A UE may operate by asynchronously transmitting code division multiple access (CDMA) uplink signals to a network entity. The UE may transmit the CDMA signals via an uplink channel that may be shared with orthogonal frequency multiplexing (OFDM) signaling transmitted by one or more other UEs. The UE may indicate to the network entity a capability for communicating with CDMA waveforms and may use CDMA waveforms based on transmitting the indication. The UE may also receive one or more parameters associated with using the CDMA waveforms, and may use CDMA waveforms based on the one or more parameters. The uplink channel may be a random access channel (RACH) and may support RACH transmissions, or may be a data channel and support data transmissions.

公开(公告)号：US11930483B2

公开(公告)日：2024-03-12

申请号：US17228508

申请日：2021-04-12

Applicant: QUALCOMM Incorporated

Inventor： Jun Ma ,  Xiaoxia Zhang ,  Jing Sun ,  Qiang Wu ,  Tao Luo ,  Iyab Issam Sakhnini ,  Mehmet Izzet Gurelli ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04W72/04 ,  H04W72/044 ,  H04W72/12 ,  H04W72/23

CPC classification number: H04W72/0466 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. For instance, a user equipment (UE) may receive, from a base station, a first downlink control information message in a downlink control channel, the first downlink control information message scheduling first resources of a downlink shared channel for a second downlink control information message. The UE may identify a first, UE-specific scrambling sequence for the second downlink control information message. The UE may receive, from the base station, the second downlink control information message based on the first scrambling sequence, the second downlink control information message scheduling second resources of the downlink shared channel for a data message. The UE may receive, from the base station, the data message in the second resources scheduled by the second downlink control information message.