公开(公告)号：US12057980B2

公开(公告)日：2024-08-06

申请号：US17082603

申请日：2020-10-28

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Srinivas Yerramalli ,  Zhifei Fan ,  Wooseok Nam ,  Sungwoo Park ,  Akula Reddy

IPC: H04L27/26 ,  H04L5/00 ,  H04W56/00 ,  H04W72/0446

CPC classification number: H04L27/2607 ,  H04L5/0094 ,  H04L27/26025 ,  H04L27/2666 ,  H04L27/2678 ,  H04W56/001 ,  H04W72/0446 ,  H04L27/2602

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may identify, for an initial slot of a periodic interval, a number of symbols included in the initial slot and a length of cyclic prefixes used for the symbols included in the initial slot based on a subcarrier spacing that is configured for wireless communication. The length of a first set of cyclic prefixes may be based on a length of a cyclic prefix calculated for an initial symbol of the initial slot at the configured subcarrier spacing. The wireless device may perform communications based on the determined number of symbols and length of cyclic prefixes included in the initial slot. Performing communications may include allocating resources based on a length of the cyclic prefixes used for the symbols included in the initial slot.

公开(公告)号：US12009962B2

公开(公告)日：2024-06-11

申请号：US17448666

申请日：2021-09-23

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Zhifei Fan ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun ,  Wooseok Nam

IPC: H04L27/26

CPC classification number: H04L27/2675 ,  H04L27/26025 ,  H04L27/2613

Abstract: Aspects of the present disclosure can be implemented in a method for wireless communication by a first wireless node, such as a user equipment (UE) or network entity. The method generally includes identifying different patterns of phase tracking reference signal (PTRS) tones for receiving a PTRS, determining when to change at least one of the different patterns of the PTRS tones from one symbol to another, and monitoring for one or more symbols of the PTRS, from a second wireless node, according to the determination.

公开(公告)号：US11963176B2

公开(公告)日：2024-04-16

申请号：US18303050

申请日：2023-04-19

Applicant: Qualcomm Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Xiaoxia Zhang ,  Zhifei Fan ,  Juan Montojo

IPC: H04W72/21 ,  H04L1/00 ,  H04L5/00 ,  H04W72/0446 ,  H04L1/16 ,  H04L1/1829 ,  H04W72/1268 ,  H04W72/566 ,  H04W76/27

CPC classification number: H04W72/21 ,  H04L1/00 ,  H04L5/0053 ,  H04W72/0446 ,  H04L1/0026 ,  H04L1/16 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/1268 ,  H04W72/569 ,  H04W76/27

Abstract: A method of wireless communication may include transmitting an uplink slot with a first control region, a second control region, and (e.g., optionally) a data region. Each region may include time resources and frequency resources. Transmitting the uplink slot may include transmitting the first control region in an earlier part of the uplink slot and transmitting the second control region (e.g., and the data region) in a later part of the uplink slot. The first control region may include time-critical control information and the second control region may include non-time-critical control information. A receiver receiving the uplink slot may receive the first control region before receiving the data region and the second control region.

公开(公告)号：US11943051B2

公开(公告)日：2024-03-26

申请号：US17482315

申请日：2021-09-22

Applicant: QUALCOMM Incorporated

Inventor： Jun Ma ,  Xiaoxia Zhang ,  Morteza Soltani ,  Raviteja Patchava ,  Elyes Balti ,  Tao Luo ,  Iyab Issam Sakhnini ,  Zhifei Fan ,  Dung Ngoc Doan

IPC: H04L1/00 ,  H03M13/25 ,  H04L27/34 ,  H03M13/00 ,  H03M13/11 ,  H03M13/27 ,  H03M13/29 ,  H04L1/1812 ,  H04L1/1829

CPC classification number: H04L1/0071 ,  H03M13/255 ,  H04L1/0057 ,  H04L27/34 ,  H03M13/1102 ,  H03M13/27 ,  H03M13/2703 ,  H03M13/271 ,  H03M13/2906 ,  H03M13/6356 ,  H04L1/0013 ,  H04L1/0067 ,  H04L1/1812 ,  H04L1/1864

Abstract: Aspects present herein relate to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. The apparatus may encode a plurality of bits associated with QAM, the plurality of bits corresponding to a circular buffer associated with at least one RV, the plurality of bits including a plurality of systematic bits. The apparatus may also transfer the plurality of bits from the circular buffer associated with the at least one RV to a first buffer and a second buffer. Additionally, the apparatus may map the plurality of bits from the first buffer and the second buffer to a plurality of modulation symbols.

公开(公告)号：US20240015057A1

公开(公告)日：2024-01-11

申请号：US17859369

申请日：2022-07-07

Applicant: QUALCOMM Incorporated

Inventor： Raviteja Patchava ,  Xiaoxia Zhang ,  Zhifei Fan ,  Jing Sun ,  Tao Luo ,  Junyi Li ,  Morteza Soltani

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04L27/2613 ,  H04L5/0051 ,  H04L27/2605 ,  H04L27/26025 ,  H04W72/1263

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive first control signaling identifying a demodulation reference signal (DMRS) pattern that may be uniformly distributed in a time domain and a frequency domain. The DMRS pattern may include a first set of resource elements for the DMRS, a second set of resource elements for guard tones adjacent to and greater in frequency than the first set of resource elements, and a third set of resource elements for guard tones adjacent to and lower in frequency than the first set of resource elements. The UE may receive second control signaling that schedules a data signal to be communicated between the UE and a network node in a set of time-frequency resources. The UE may communicate the data signal according to the second control signaling and the DMRS according to the DMRS pattern.

公开(公告)号：US11849455B2

公开(公告)日：2023-12-19

申请号：US17350837

申请日：2021-06-17

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Jing Sun ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Wooseok Nam ,  Iyab Issam Sakhnini ,  Zhifei Fan ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W4/00 ,  H04W72/21 ,  H04B1/713 ,  H04W72/0453

CPC classification number: H04W72/21 ,  H04B1/713 ,  H04W72/0453

Abstract: Disclosed are techniques for wireless communication. In an aspect, a UE determines a configuration of a common PUCCH resource set that is based on a frequency hopping pattern and includes a first set of resource blocks (RBs) of a bandwidth part (BWP) in a first group of symbols and a second set of RBs of the BWP in a second group of symbols. In some designs, the second set of RBs is offset in frequency from the first set of RBs by a fixed hopping distance. In other designs, the BWP is further associated with a second PUCCH resource set that includes a third set of RBs of the BWP that overlaps in part with the first set of RBs of the BWP in the first group of symbols, a fourth set of RBs of the BWP that overlaps in part with the second set of RBs of the BWP in the second group of symbols, or a combination thereof.

公开(公告)号：US11805526B2

公开(公告)日：2023-10-31

申请号：US18160061

申请日：2023-01-26

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Seyed Ali Akbar Fakoorian ,  Zhifei Fan ,  Jing Sun

IPC: H04W16/14 ,  H04W72/21 ,  H04B1/713 ,  H04L5/00 ,  H04J13/00 ,  H04B1/707

CPC classification number: H04W72/21 ,  H04B1/707 ,  H04B1/713 ,  H04J13/0048 ,  H04L5/0048 ,  H04W16/14

Abstract: Wireless communications systems and methods related to multiplexing uplink control channel signals from different users are provided. A first wireless communication device obtains an uplink control channel multiplex configuration indicating a first frequency spreading sequence and at least one of a second frequency spreading sequence or a first spatial direction. The first wireless communication device communicates, with a second wireless communication device, a first uplink control channel signal including a first reference signal and a first uplink control information signal in a frequency spectrum based on the uplink control channel multiplex configuration. The first reference signal is based on the first frequency spreading sequence and the first uplink control information signal is based on at least one of the second frequency spreading sequence or the first spatial direction.

公开(公告)号：US20230254793A1

公开(公告)日：2023-08-10

申请号：US17667254

申请日：2022-02-08

Applicant: QUALCOMM Incorporated

Inventor： Raviteja Patchava ,  Jun Ma ,  Jing Sun ,  Sony Akkarakaran ,  Morteza Soltani ,  Xiaoxia Zhang ,  Zhifei Fan ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04W56/00 ,  H04L5/00 ,  H04L1/00 ,  H04L27/26

CPC classification number: H04W56/0045 ,  H04L5/0023 ,  H04L1/0071 ,  H04L27/26526

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may generate a orthogonal time frequency space (OTFS) waveform for transmission to a second wireless device. Generation of an OTFS waveform may include mapping information samples to a delay-Doppler resource grid having a set of delay values and a set of Doppler values. A channel estimation block may occupy one or more rows of the delay-Doppler grid. When mapping information samples to the delay-Doppler grid, the transmitting device may first map information samples in the delay dimension (e.g., first map all of the symbols in one column of the delay-Doppler grid before mapping information samples into a second column). Such a mapping scheme may reduce the distance from any given information sample to the channel estimation block.

公开(公告)号：US20230232432A1

公开(公告)日：2023-07-20

申请号：US17577993

申请日：2022-01-18

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang Tian ,  Jing Sun ,  Xiaoxia Zhang ,  Mostafa Khoshnevisan ,  Zhifei Fan ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Tao Luo

IPC: H04W72/04 ,  H04W72/12 ,  H04L1/00

CPC classification number: H04W72/048 ,  H04W72/0446 ,  H04W72/1263 ,  H04L1/0003

Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications device, such as a user equipment (UE) may transmit a capability message indicating a capability of the UE to receive one or more downlink messages during a time slot, and may receive one or more control signalings which schedule a first and a second downlink message during the time slot, indicate a first resource allocation scheduled by a first scheduling configuration, and indicate a second resource allocation scheduled by a second scheduling configuration. The UE may monitor for one or both of the first downlink message or the second downlink message during the time slot based on the one or more control signalings and the capability message. The capability message may indicate a capability of the UE to receive a single downlink message or receive more than one downlink message during the time slot.

公开(公告)号：US11696273B2

公开(公告)日：2023-07-04

申请号：US17225890

申请日：2021-04-08

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Zhifei Fan ,  Juan Montojo ,  Sungwoo Park ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04W72/04 ,  H04W72/044 ,  H04W72/0446 ,  H04W8/22

CPC classification number: H04W72/046 ,  H04W8/22 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a beam switching capability for a subcarrier spacing for communications between the UE and a base station. In one example, the beam switching capability may indicate a quantity of beam switches for a plurality of slots of a transmission time interval. In another example, the capability may indicate a threshold quantity of symbol periods between beam switching operations associated with the subcarrier spacing, or a beam switching time for the subcarrier spacing, or both. The UE may determine, for the identified beam switching capability, one or more parameter values that indicate the identified beam switching capability. The parameters may explicitly or implicitly indicate the identified capability. The UE may also transmit the determined one or more parameter values to the base station and communicate with the base station according to the identified beam switching capability.