公开(公告)号：US12256441B2

公开(公告)日：2025-03-18

申请号：US17201598

申请日：2021-03-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/0833 ,  H04L5/00 ,  H04L27/26 ,  H04W74/00 ,  H04W74/0836

Abstract: For a two-step random access channel (RACH) process, the base station determines a random access configuration to configure a user equipment (UE) with the two-step RACH process that includes a communication of a first message including a preamble portion and a payload portion, where the determining the random access configuration includes determining to exclude a demodulation reference signal (DMRS) from the payload portion based on satisfaction of conditions. The base station generates configuration information including the random access configuration indicating the two-step RACH process, the configuration information including a configuration for a transmission of the preamble portion and the payload portion without the DMRS based on the satisfaction of the conditions. The base station transmits the configuration information to the UE, and subsequently receives, based on the configuration information, a first RACH message that includes the preamble portion and the payload portion without the DMRS, using the single carrier waveform.

公开(公告)号：US12216212B2

公开(公告)日：2025-02-04

申请号：US17757931

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

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

IPC: G01S19/11 ,  H04L5/00 ,  H04W64/00 ,  H04W84/06

Abstract: Disclosed are techniques for positioning. A receiver measures a time of arrival (ToA) of a positioning reference signal (PRS) transmission of a first PRS sequence transmitted by a first transmitter, measures a ToA of a PRS transmission of a second PRS sequence transmitted by a second transmitter, and determines an observed time difference of arrival (OTDOA) as a difference between the ToA of the PRS transmission of the first PRS sequence and the ToA of the PRS transmission of the second PRS sequence, wherein the OTDOA is less than half a maximum differential delay expected between the PRS transmission of the first PRS sequence and the PRS transmission of the second PRS sequence, and wherein a repetition duration of the first PRS sequence and the second PRS sequence is greater than 10 milliseconds (ms) and at least twice the maximum differential delay.

公开(公告)号：US12207273B2

公开(公告)日：2025-01-21

申请号：US17668933

申请日：2022-02-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/23 ,  H04L1/08 ,  H04W72/0446

Abstract: Aspects described herein relate to receiving, from a network node, a first transmission for configuring a configured grant, wherein the configured grant allocates one or more resources associated with an uplink transmission process having a transmission process identifier, obtaining a first indication that the network node uses a fallback downlink control information (DCI) format, and modifying, based at least in part on obtaining the first indication and the transmission process identifier, the uplink transmission process. Other aspects relate to configuring a device for modifying the uplink transmission process, receiving uplink communications based on the modified uplink transmission process, and/or the like.

公开(公告)号：US12177842B2

公开(公告)日：2024-12-24

申请号：US17644502

申请日：2021-12-15

Applicant: QUALCOMM Incorporated

Inventor： Raviteja Patchava ,  Jun Ma ,  Morteza Soltani ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04B7/01 ,  H04B7/0456 ,  H04W72/044 ,  H04W72/20

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may precode a physical sidelink control channel (PSCCH) communication using a first delay-Doppler precoder. The UE may precode a physical sidelink shared channel (PSSCH) communication using one or more second delay-Doppler precoders. The UE may transmit the PSCCH communication and the PSSCH communication in a slot after precoding the PSCCH communication and the PSSCH communication. Numerous other aspects are described.

公开(公告)号：US12156149B2

公开(公告)日：2024-11-26

申请号：US17171731

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Huilin Xu ,  Jun Ma ,  Dan Zhang ,  Iyab Issam Sakhnini

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04 ,  H04W72/044 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. A satellite may determine one or more sets set of resources for conveying reference signals to a user terminal. In one example, the satellite may determine a set of resources that includes multiple resource groups each associated with a respective frequency range. In another example, the satellite may determine multiples sets of resources and each set of resources may include resources within respective frequency range. Upon determining the set(s) of resources, the satellite may transmit an indication of the set(s) of resources to a user terminal.

公开(公告)号：US12117537B2

公开(公告)日：2024-10-15

申请号：US17793524

申请日：2020-02-07

Applicant: QUALCOMM Incorporated

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

IPC: G01S19/25 ,  G01S5/10 ,  H04W64/00 ,  H04W84/06

CPC classification number: G01S19/256 ,  G01S5/10 ,  H04W64/00 ,  H04W84/06

Abstract: Satellites in a non-terrestrial network may provide positioning reference signals (PRS) to user equipment (UE), with which the UE may determine its position using propagation delay difference measurements, such as Time Difference of Arrival (TDOA) measurement. Due to the large distances between satellites and the UE, the propagation delay differences in the PRS received from satellites may exceed half a radio frame, resulting in a frame level timing ambiguity in the differential measurements. The satellites transmit secondary PRS, along with primary PRS, that include timing information to resolve frame level timing ambiguity of the primary PRS. The positioning occasions in the secondary PRS, for example, may be aligned with corresponding positioning occasions primary PRS within each radio frame, and are transmitted with a periodicity that is an integer multiple (greater than 1) of that of the primary PRS to resolve the frame level timing ambiguity of the primary PRS.

公开(公告)号：US12114312B2

公开(公告)日：2024-10-08

申请号：US17248444

申请日：2021-01-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/21 ,  H04L27/26 ,  H04W72/51 ,  H04W72/0453

CPC classification number: H04W72/21 ,  H04L27/2607 ,  H04W72/51 ,  H04W72/0453

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may process, for a physical uplink control channel (PUCCH) communication in a millimeter wave (mmWave) band, information for transmission, wherein the information is modulated using an extended sequence with a length greater than a base sequence length for PUCCH communication or wherein a cyclic shift, of a plurality of cyclic shifts for a set of contiguous resource blocks for transmission of the information, is applied to the information based at least in part on a resource block group associated with the information. The UE may transmit the information based at least in part on processing the information. Numerous other aspects are described.

公开(公告)号：US12096490B2

公开(公告)日：2024-09-17

申请号：US17651206

申请日：2022-02-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/0833 ,  H04L5/00 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04W74/0841 ,  H04L5/0012 ,  H04W72/0446 ,  H04W74/008 ,  H04W74/0866

Abstract: Aspects are provided which allow coverage enhancement and support in NTNs for repetition, frequency hopping, and antenna switching during msgA transmissions based on a preamble-to-PO mapping. In one aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with at least one PO for two-step random access, where the PO spans a time interval greater than one slot. In another aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with a plurality of POs for two-step random access. In a further aspect, the base station provides the UE a plurality of configurations each indicating a PO for two-step random access. In an additional aspect, the base station provides the UE a configuration indicating a guard band for a PO for two-step random access, where the guard band is indicated in units of subcarriers spanning less than one PRB.

公开(公告)号：US12095685B2

公开(公告)日：2024-09-17

申请号：US17658411

申请日：2022-04-07

Applicant: QUALCOMM Incorporated

Inventor： Raviteja Patchava ,  Jun Ma ,  Morteza Soltani ,  Xiaoxia Zhang

IPC: H04L5/00 ,  H04B7/0456

CPC classification number: H04L5/0023 ,  H04B7/0456 ,  H04L5/0046 ,  H04L5/0098

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may apply an orthogonal time frequency space (OTFS) precoding to a plurality of tracking reference signal (TRS) resource samples allocated in a delay-Doppler domain to obtain a plurality of TRS symbols with the OTFS precoding. The first network node may transmit, to a second network node, a TRS in which the plurality of TRS symbols with the OTFS precoding have a uniform spacing in a time domain. Numerous other aspects are described.

公开(公告)号：US12088526B2

公开(公告)日：2024-09-10

申请号：US18320883

申请日：2023-05-19

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/044 ,  H04W72/51

CPC classification number: H04L5/0051 ,  H04W72/044 ,  H04W72/51

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling identifying a configuration for a reference signal comprising a single carrier waveform and associated with single carrier signals for a plurality of symbol periods, the configuration indicating a plurality of channels associated with the reference signal and a set of functions associated with the reference signal. The UE may receive, according to the configuration, the reference signal in a first one or more symbol periods of the plurality of symbol periods and the single carrier signals on the plurality of channels in a second one or more symbol periods of the plurality of symbol periods. The UE may perform the set of functions on the received single carrier signals based at least in part on the received reference signal.