公开(公告)号：US11924887B2

公开(公告)日：2024-03-05

申请号：US17305064

申请日：2021-06-30

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Tao Luo ,  Xiaoxia Zhang ,  Qiang Wu ,  Jun Ma ,  Iyab Issam Sakhnini ,  Jing Sun ,  Mehmet Izzet Gurelli ,  Anantha Krishna Karthik Nagarajan ,  Juan Montojo ,  Peter Gaal

IPC: H04W74/08 ,  H04L5/14 ,  H04W56/00 ,  H04W74/00

CPC classification number: H04W74/0841 ,  H04L5/14 ,  H04W56/001 ,  H04W74/008

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a base station, an indication of a time gap value associated with a random access channel (RACH) procedure, wherein the time gap value is based at least in part on a capability of the base station, determine whether a physical RACH (PRACH) occasion associated with the RACH procedure is valid based at least in part on receiving the indication of the time gap value associated with the RACH procedure, and selectively transmit, to the base station, a PRACH transmission in the PRACH occasion based at least in part on determining whether the PRACH occasion is valid. Numerous other aspects are provided.

公开(公告)号：US11916712B2

公开(公告)日：2024-02-27

申请号：US17451559

申请日：2021-10-20

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Jun Ma

IPC: H04L27/26 ,  H04W56/00

CPC classification number: H04L27/2607 ,  H04L27/2636 ,  H04W56/004

Abstract: Method and apparatus to use different GI sequences for different FDM UEs. The apparatus calculates a GI of each UE from a set of UEs based at least on a delay spread associated with each UE from the set of UEs. The apparatus multiplexes data and the GI of each respective UE from the set of UEs to generate a waveform. The apparatus transmits the waveform to the set of UEs. The apparatus may receive, from each UE from the set of UEs, the delay spread associated with each UE from the set of UEs. The apparatus may multiplex the GI of each respective UE from the set of UEs prior to performing a DFT operation on the GI and the data. The apparatus may multiplex the GI of each respective UE from the set of UEs after performing an IDFT operation to generate the waveform.

公开(公告)号：US11910458B2

公开(公告)日：2024-02-20

申请号：US17220902

申请日：2021-04-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W76/18

CPC classification number: H04W76/18 ,  H04W56/001 ,  H04W56/0035 ,  H04W56/0045 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. The method may include establishing a connection between the UE and a network node of a non-terrestrial network, identifying, based on a synchronization failure event and while the UE is in a connected mode in accordance with establishing the connection, that a location failure condition has occurred for the connection, and performing, at least in part in response to the location failure condition, one or more actions of a location failure recovery procedure to restore a synchronization associated with the connection.

公开(公告)号：US11871440B2

公开(公告)日：2024-01-09

申请号：US17357950

申请日：2021-06-24

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Jing Sun ,  Jun Ma ,  Xiaoxia Zhang ,  Hemant Saggar ,  Morteza Soltani ,  Junyi Li

IPC: H04W72/0446 ,  H04W72/23 ,  H04W72/541 ,  H04W72/51

CPC classification number: H04W72/541 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/51

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a base station may transmit, to a user equipment (UE), an indication of a dynamic switch between slot formats. The base station and the UE may communicate first data in one or more first slots according to a first slot format. The first slot format may be a first cyclic prefix-based or guard interval-based slot format. The base station may transmit control signaling to the UE to indicate a second slot format different from the first slot format. The second slot format may be a second cyclic prefix-based or guard interval-based slot format. The UE and the base station may switch to communicating second data in one or more second slots in accordance with the second slot format based on the control signaling.

公开(公告)号：US11871438B2

公开(公告)日：2024-01-09

申请号：US17161178

申请日：2021-01-28

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Xiaoxia Zhang ,  Jun Ma ,  Jing Sun ,  Juan Montojo ,  Peter Gaal

IPC: H04W4/00 ,  H04W72/53 ,  H04L27/26 ,  H04W56/00 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04L27/26025 ,  H04W56/001 ,  H04W72/0446 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling from a base station including a resource configuration indicating a resource block includes a synchronization signal block (SSB) and a control resource set (CORESET). The resource configuration may be based on a sub-carrier spacing (SCS) configuration. The UE may receive the SSB and the CORESET from the base station within the resource block and according to the resource configuration. The UE may receive one or more reference signals and may decode the SSB and the CORESET based on the resource configuration and the reference signals.

公开(公告)号：US11855826B2

公开(公告)日：2023-12-26

申请号：US17470735

申请日：2021-09-09

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Jun Ma ,  Weimin Duan ,  Mehmet Izzet Gurelli ,  Qiang Wu

IPC: H04B7/08 ,  H04B7/0404 ,  H04B7/06 ,  H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04L27/2636 ,  H04L5/0048 ,  H04W72/23

Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communication for applying resource element (RE) skipping to a symbol where a beam change is to occur. A transmitter and a receiver determine that a beam change is to occur during the symbol. The transmitter allocates bits to a subset of REs for the symbol in a frequency domain allocation. Each RE of the subset is spaced apart by a number of empty REs. The transmitter performs an inverse fast Fourier transform (IFFT) on the REs to generate a time domain signal including a number of repetitions of a transmitted waveform. The receiver receives the time domain signal during at least a portion of the symbol. The receiver performs a fast Fourier transform (FFT) on the time domain signal and determines transmitted bits or a channel from the subset of REs output from the FFT.

公开(公告)号：US11832227B2

公开(公告)日：2023-11-28

申请号：US17380650

申请日：2021-07-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L5/14 ,  H04W72/0446

CPC classification number: H04W72/0446 ,  H04L5/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a time-domain resource for an uplink transmission. The UE may determine a time period, during which the UE is to refrain from monitoring for downlink communications, based at least in part on the time-domain resource for the uplink transmission and at least one of a first time offset associated with a difference in starting time between an uplink radio frame and a corresponding downlink radio frame at the UE, a second time offset associated with an uplink-downlink timing interaction for the UE, or a network-indicated offset. Numerous other aspects are provided.

公开(公告)号：US11831573B2

公开(公告)日：2023-11-28

申请号：US17387562

申请日：2021-07-28

Applicant: QUALCOMM Incorporated

Inventor： Hemant Saggar ,  Iyab Issam Sakhnini ,  Jun Ma ,  Tao Luo

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L27/2605

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a subcarrier spacing (SCS) for communications in a transmission time interval (TTI), such as a half-subframe, including multiple symbols, corresponding cyclic prefixes, and a padding duration which is at least as long as a symbol duration. The UE may receive a configuration for the padding duration, indicating that at least a portion of the padding duration is reallocated for a reference signal that indicates waveform parameters for one or more symbols of the TTI after the padding duration. The UE may receive the reference signal indicating the waveform parameters during the portion of the padding duration and communicate during the one or more symbols of the TTI according to the waveform parameters.

公开(公告)号：US11784862B1

公开(公告)日：2023-10-10

申请号：US17580976

申请日：2022-01-21

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Junyi Li ,  Jun Ma

IPC: H04L27/26

CPC classification number: H04L27/2607 ,  H04L27/2613

Abstract: Certain aspects of the present disclosure provide techniques for wireless communications by a transmitter, comprising generating a waveform to be transmitted in one or more symbols, with a guard interval (GI) between adjacent symbols according to a GI configuration selected from a plurality of GI configurations, and transmitting the waveform with the GI between symbols.

公开(公告)号：US20230276309A1

公开(公告)日：2023-08-31

申请号：US18314501

申请日：2023-05-09

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Qiang Wu ,  Jun Ma ,  Xiao Feng Wang ,  Iyab Issam Sakhnini ,  Dan Zhang ,  Liangping Ma

IPC: H04W36/00 ,  H04W60/04 ,  H04B7/185

CPC classification number: H04W36/0016 ,  H04W60/04 ,  H04B7/18508 ,  H04W36/0072 ,  H04W36/0058 ,  H04B7/18541

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for wireless communication via a non-terrestrial network (NTN). In one aspect, a method for wireless communication includes initiating, by a user equipment (UE), a registration process with a network entity of an NTN to access the NTN. The method also includes transmitting, by the UE to the network entity, UE capability information of the UE. The method further includes receiving, by the UE from the network entity, a handover command, the handover command comprising a handover time indicator associated with a target handover time for the UE to perform a handover operation from a first beam to a second beam. Other aspects and features are also claimed and described.