公开(公告)号：US20200314912A1

公开(公告)日：2020-10-01

申请号：US16824137

申请日：2020-03-19

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng WANG ,  Iyab Issam SAKHNINI ,  Jun MA ,  Huilin XU ,  Dan ZHANG

IPC: H04W74/08 ,  H04W16/28

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information identifying locations of respective random access channel (RACH) resources for a plurality of beams associated with a non-terrestrial network, wherein the plurality of beams are associated with respective frequency regions. The UE may perform a RACH procedure with regard to the selected beam using a RACH resource associated with the selected beam. Numerous other aspects are provided.

公开(公告)号：US20200314892A1

公开(公告)日：2020-10-01

申请号：US16831274

申请日：2020-03-26

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng WANG ,  Iyab Issam SAKHNINI ,  Jun MA ,  Huilin XU ,  Dan ZHANG

IPC: H04W74/00 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information that indicates whether to perform a first random access channel (RACH) procedure for a non-terrestrial network or a second RACH procedure for a terrestrial network, wherein the first RACH procedure is configured to support a larger number of UEs contemporaneously performing a RACH procedure than the second RACH procedure. Responsive to the information indicating that the UE is to perform the first RACH procedure, the UE may perform the first RACH procedure. Numerous other aspects are provided.

公开(公告)号：US20170105153A1

公开(公告)日：2017-04-13

申请号：US15149008

申请日：2016-05-06

Applicant: QUALCOMM Incorporated

Inventor： Seyed Shwan ASHRAFI ,  Sumeeth NAGARAJA ,  Dan VASSILOVSKI ,  Dan ZHANG ,  James DETERMAN ,  Gene Wesley MARSH ,  Jun MA

IPC: H04W36/08 ,  H04W36/22 ,  H04W36/24 ,  H04B17/336

CPC classification number: H04W36/245 ,  H04B7/18541 ,  H04B7/195 ,  H04B17/336 ,  H04W36/30 ,  H04W84/06

Abstract: Methods and apparatuses for managing inter-satellite handovers are provided to allow a user terminal to reduce the frequency of handovers while maintaining a sufficiently high system capacity in a non-geosynchronous satellite communication system. The method and apparatus for managing inter-satellite handovers may be implemented in a gateway, in infrastructure connected to a gateway, in a user terminal, or in a satellite.

公开(公告)号：US20250047543A1

公开(公告)日：2025-02-06

申请号：US18705147

申请日：2022-01-20

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Jun MA ,  Mohamad SAYED HASSAN ,  Qiang WU ,  Mehmet Izzet GURELLI ,  Yuwei REN ,  Weimin DUAN ,  Lianghai JI ,  Karthik ANANTHA SWAMY

IPC: H04L27/26 ,  H04L5/00

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 configuration of a control region in a delay-Doppler domain. The UE may receive, from the base station, a physical downlink control channel (PDCCH) communication with orthogonal time frequency space (OTFS) precoding. The UE may decode the PDCCH communication with OTFS precoding based at least in part on the configuration of the control region in the delay-Doppler domain. Numerous other aspects are described.

公开(公告)号：US20240407014A1

公开(公告)日：2024-12-05

申请号：US18749374

申请日：2024-06-20

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng WANG ,  Iyab Issam SAKHNINI ,  Dan ZHANG ,  Peter GAAL ,  Jun MA ,  Huilin XU

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

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：US20240297761A1

公开(公告)日：2024-09-05

申请号：US18573886

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Alberto RICO ALVARINO ,  Xiao Feng WANG ,  Peter GAAL ,  Changhwan PARK ,  Ayan SENGUPTA ,  Wanshi CHEN ,  Jun MA ,  Bharat SHRESTHA ,  Huilin XU ,  Umesh PHUYAL ,  Juan MONTOJO ,  Yiqing CAO

IPC: H04L5/00 ,  H04W72/1268 ,  H04W84/06

CPC classification number: H04L5/0051 ,  H04W72/1268 ,  H04W84/06

Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a UE that generally includes transmitting a first sounding reference signal (SRS), from a first antenna port in a first symbol, on one or more tones determined by a first comb size and a first tone offset, transmitting a second SRS, from a second antenna port in the first symbol, on one or more tones determined by the first comb size and a second tone offset different than the first tone offset, transmitting a third SRS, from the first antenna port in a second symbol, on one or more tones determined by the first comb size and the second tone offset, and transmitting a fourth SRS, from the second antenna port in the second symbol, on one or more tones determined by the first comb size and the first tone offset.

公开(公告)号：US20240155592A1

公开(公告)日：2024-05-09

申请号：US18548118

申请日：2021-04-05

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Peter GAAL ,  Ayan SENGUPTA ,  Jun MA ,  Huilin XU ,  Bharat SHRESTHA ,  Umesh PHUYAL ,  Juan MONTOJO ,  Changhwan PARK ,  Wanshi CHEN ,  Yiqing CAO

IPC: H04W72/0457 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/231 ,  H04W76/20

CPC classification number: H04W72/0457 ,  H04L5/0092 ,  H04W72/0453 ,  H04W72/231 ,  H04W76/20

Abstract: Certain aspects of the present disclosure provide techniques for bandwidth part (BWP) switching by frequency shifting and/or by transmission configuration indicator (TCI) state configuration. A method that may be performed by a user equipment (UE) includes receiving a BWP configuration indicating a frequency location and bandwidth of at least a first BWP; receiving signaling indicating at least one frequency shift to determine a second BWP from a frequency location of the first BWP; and communicating on the second BWP after performing a BWP switch from the first BWP to the second BWP based on the at least one frequency shift.

公开(公告)号：US20240097803A1

公开(公告)日：2024-03-21

申请号：US18511529

申请日：2023-11-16

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam SAKHNINI ,  Tao LUO ,  Xiaoxia ZHANG ,  Jun MA ,  Jing SUN

IPC: H04B17/29

CPC classification number: H04B17/29

Abstract: Certain aspects of the present disclosure provide techniques for waveform parameters adaptation. Aspects provide for adapting waveforms to account for impairments that can occur when communicating in a high frequency band. A method that may be performed by a base station (BS) includes detecting one or more impairment conditions. The method includes determining a plurality of waveform parameters to adapt in response to the detected one or more impairment conditions. The method includes signaling the plurality of adapted waveform parameters to a user equipment (UE).

公开(公告)号：US20230337161A1

公开(公告)日：2023-10-19

申请号：US17935851

申请日：2022-09-27

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Changhwan PARK ,  Xiao Feng WANG ,  Mohamad SAYED HASSAN ,  Jun MA ,  Umesh PHUYAL ,  Peter GAAL ,  Huilin XU ,  Harikumar KRISHNAMURTHY ,  Bharat SHRESTHA ,  Alberto RICO ALVARINO ,  Ayan SENGUPTA ,  Lianghai JI

IPC: H04W56/00

CPC classification number: H04W56/0045

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, after an update to a location or a velocity of the UE, a closed-loop frequency pre-compensation and an open-loop frequency pre-compensation. The UE may transmit, after the update to the location or the velocity of the UE, an uplink signal using a frequency pre-compensation that is based at least in part on the closed-loop frequency pre-compensation and the open-loop frequency pre-compensation. Numerous other aspects are described.

公开(公告)号：US20230336212A1

公开(公告)日：2023-10-19

申请号：US17937302

申请日：2022-09-30

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Changhwan PARK ,  Xiao Feng WANG ,  Mohamad SAYED HASSAN ,  Jun MA ,  Umesh PHUYAL ,  Peter GAAL ,  Huilin XU ,  Harikumar KRISHNAMURTHY ,  Bharat SHRESTHA ,  Alberto RICO ALVARINO ,  Ayan SENGUPTA

IPC: H04B7/01 ,  H04W64/00

CPC classification number: H04B7/01 ,  H04W64/006 ,  H04W84/06

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus at a UE in NTN are provided. The UE may be configured to receive one or more FPC commands from an NTN. The UE may be further configured to transmit, in response to receiving the one or more FPC commands, an uplink transmission with a frequency change having a total FPC adjustment calculated based on (a) a current UE location update and a current UE velocity update, wherein the total FPC adjustment satisfies one or more threshold requirements, or (b) an intermediary UE location update between the current UE location update and a previous UE location update and an intermediary UE velocity update between the current UE velocity update and a previous UE velocity update.