公开(公告)号：US12273292B2

公开(公告)日：2025-04-08

申请号：US17575363

申请日：2022-01-13

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04J13/16

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may measure a frequency selectivity of a channel between the UE and a base station and may transmit signaling to the base station indicating one or both of a frequency selectivity metric or a recommended demodulation reference signal (DMRS) port multiplexing pattern based on measuring the frequency selectivity. In some aspects, the UE may transmit the signaling to assist the base station in configuring a DMRS port multiplexing pattern based on current channel conditions. For example, if the frequency selectivity metric satisfies a threshold, the UE may recommend a DMRS port multiplexing pattern absent of code division multiplexing (CDM). Alternatively, if the frequency selectivity metric fails to satisfy the threshold, the UE may recommend a DMRS port multiplexing patter including CDM.

公开(公告)号：US12273183B2

公开(公告)日：2025-04-08

申请号：US17691855

申请日：2022-03-10

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Huilin Xu ,  Lianghai Ji ,  Mehmet Izzet Gurelli ,  Jun Ma ,  Qiang Wu ,  Bala Ramasamy ,  Karthik Anantha Swamy

IPC: H04B7/185 ,  H04L5/00 ,  H04W56/00

Abstract: Systems and techniques are provided for wireless communications performed at a network entity. For example, the systems and techniques can include obtaining, at the network entity, a target relative time difference (RTD). A transmission timing pre-compensation can be determined at the network entity between a first reference signal and a second reference signal, wherein the transmission timing pre-compensation is determined based on the target RTD and one or more network delay components. The first reference signal and the second reference signal can be transmitted using the transmission timing pre-compensation to offset the first reference signal from the second reference signal by the target RTD.

公开(公告)号：US12245212B2

公开(公告)日：2025-03-04

申请号：US17304955

申请日：2021-06-29

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Ayan Sengupta ,  Bharat Shrestha ,  Jun Ma ,  Peter Pui Lok Ang ,  Qiang Wu

IPC: H04W72/044

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a bandwidth part configuration that indicates one or more bandwidth parts associated with at least one beam and switch, based at least in part on the bandwidth part configuration, from a first bandwidth part of the one or more bandwidth parts as an active bandwidth part to a second bandwidth part of the one or more bandwidth parts as the active bandwidth part. Numerous other aspects are provided.

公开(公告)号：US12232167B2

公开(公告)日：2025-02-18

申请号：US17753621

申请日：2019-10-02

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/00 ,  H04W76/10

Abstract: Certain aspects of the present disclosure provide techniques for supporting multiple types of random access occasions. A method that may be performed by a user equipment (UE) includes receiving, from a base station (BS), an indication of at least two types of random access occasions (ROs) including a first RO type and a second RO type for communicating in a first coverage area of the BS as part of a random access process for the UE to establish a connection with the BS in the first coverage area. The method further includes transmitting, to the BS, a preamble on an RO of one of the first RO type or the second RO type, wherein a preamble format of the preamble is based on whether the RO is of the first RO type or the second RO type.

公开(公告)号：US12185254B2

公开(公告)日：2024-12-31

申请号：US17232806

申请日：2021-04-16

Applicant: QUALCOMM Incorporated

Inventor： Morteza Soltani ,  Jun Ma ,  Anantha Krishna Karthik Nagarajan ,  Iyab Issam Sakhnini ,  Wooseok Nam ,  Xiaoxia Zhang

IPC: H04W52/14 ,  H04W52/36 ,  H04W52/52

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive information relating to a power amplifier backoff adjustment. The mobile station may transmit an uplink communication on a frequency channel using an adjusted power amplifier backoff determined based at least in part on the information. Numerous other aspects are described.

公开(公告)号：US12177824B2

公开(公告)日：2024-12-24

申请号：US17662059

申请日：2022-05-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/0453 ,  H04B1/713 ,  H04W72/044 ,  H04W72/23

Abstract: Aspects of the present disclosure provide systems and methods for informing a user equipment (UE) that which beam the UE is being served, for example, such as in relation to bandwidth part (BWP) switching in a non-terrestrial network (NTN). According to certain aspects, a network entity may transmit to a user equipment (UE) signaling indicating at least one BWP switch. The network entity provides, to the UE, an indication of a serving synchronization signal block (SSB) for the UE to use after the BWP switch.

公开(公告)号：US12156167B2

公开(公告)日：2024-11-26

申请号：US17759073

申请日：2020-02-07

Applicant: QUALCOMM Incorporated

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

IPC: H04W64/00

Abstract: Disclosed are techniques for positioning. A receiver receives complementary timing information associated with the positioning reference signals (PRS) of a repetition of a PRS sequence. The complementary timing information distinguishes a repetition of a PRS sequence from remaining repetitions of the PRS sequence. Based on the complementary timing information associated with different PRS from different non-terrestrial vehicles indicating that the PRS were transmitted during the same radio frame, the receiver can determine an observed time difference of arrival (OTDOA) between the PRS received from the respective non-terrestrial vehicles.

公开(公告)号：US12075384B2

公开(公告)日：2024-08-27

申请号：US17375944

申请日：2021-07-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04L5/00 ,  H04L27/26 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/02 ,  H04L5/0051 ,  H04L27/26025 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a first tracking reference signal configuration and a second tracking reference signal configuration. The first tracking reference signal configuration may include a first set of parameters and the second tracking reference signal configuration may include a second set of parameters. The UE, the base station, or both may identify an indicator for selection from among the first tracking reference signal configuration and the second tracking reference signal configuration. The UE may receive, from the base station and based on the identified indicator for selection, a tracking reference signal in accordance with the first tracking reference signal configuration or the second tracking reference signal configuration.

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.