公开(公告)号：US20240137253A1

公开(公告)日：2024-04-25

申请号：US18546705

申请日：2021-04-27

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Kexin XIAO ,  Thomas Joseph RICHARDSON ,  Changlong XU ,  Ori SHENTAL ,  Kangqi LIU ,  Wei LIU ,  Hao XU

IPC: H04L27/00 ,  H03M7/40

CPC classification number: H04L27/0012 ,  H03M7/4006

Abstract: Wireless communications systems and methods related to an efficient arithmetic coding based multiple composition distribution matcher (MCDM) are provided. A wireless communication device selects, based on a first value representing a sequence of bits, a first composition from a plurality of compositions. Each composition of the plurality of compositions includes a different modulation symbol distribution associated with a modulation scheme. The wireless communication device encodes, based on the first composition, the sequence of bits into a sequence of symbols using arithmetic coding. The wireless communication device transmits a communication signal including the sequence of symbols.

公开(公告)号：US20240048348A1

公开(公告)日：2024-02-08

申请号：US18264224

申请日：2021-04-25

Applicant: QUALCOMM INCORPORATED

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Kexin XIAO ,  Ruiming ZHENG ,  Runxin WANG ,  Peter GAAL ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/00

CPC classification number: H04L5/0098 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0094 ,  H04L1/1614

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling indicating a configuration for use by the UE to select one or more of a plurality of resource sets for a bandwidth part (BWP) for the UE, where each of the resource sets comprise reference signal resources that correspond to one or more antenna ports of the UE. The UE may receive, from the base station, an activation message instructing the UE to activate at least one resource set of the plurality of resource sets for reference signal transmission using the BWP. The UE may transmit a reference signal over the activated resource set using the BWP and at least one antenna port of the one or more antenna ports based at least in part on the activation message, the antenna port corresponding to the activated resource set.

公开(公告)号：US20230421327A1

公开(公告)日：2023-12-28

申请号：US18253179

申请日：2022-01-13

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  Kexin XIAO

IPC: H04L5/00 ,  H04W72/1268 ,  H04W76/20 ,  H04W72/232

CPC classification number: H04L5/0051 ,  H04W72/1268 ,  H04W76/20 ,  H04W72/232

Abstract: Aspects are provided that allow a UE to perform DMRS bundling in PUSCH repetitions in response to a configuration from a base station indicating or enabling the UE to perform the DMRS bundling. The UE receives a configuration from a base station indicating to bundle DMRS in repetitions of an uplink data channel transmission for joint channel estimation. The UE determines a DMRS bundling window based on the configuration. The UE transmits the bundled DMRS in the DMRS bundling window. The base station performs the joint channel estimation based on the bundled DMRS. Improved link quality between the UE and base station and signal gains may accordingly result from applying DMRS bundling over multiple repetitions of PUSCH transmissions.

公开(公告)号：US20230361913A1

公开(公告)日：2023-11-09

申请号：US18245144

申请日：2020-11-18

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Changlong XU ,  Jian LI ,  Kangqi LIU ,  Kexin XIAO ,  Hao XU

IPC: H04L1/00

CPC classification number: H04L1/0042 ,  H04L1/0075

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a configuration indicating a set of encoding parameters corresponding to a constellation shaping encoding process. The UE may calculate a number of bits of a first subset of a source bit stream, and the first subset of the source bit stream may include or encompass an input to a distribution matcher. The UE may apply, to the first subset, a distribution matcher parameter based on the set of encoding parameters. The UE may calculate a number of bits of a second subset of the source bit stream, and the second subset of the source bit stream may be concatenated with an output bit stream of the distribution matcher as an input to a channel encoder. The UE may signal the source bit stream to the base station.

公开(公告)号：US20240324021A1

公开(公告)日：2024-09-26

申请号：US18579220

申请日：2021-09-28

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  Hwan Joon KWON ,  Kexin XIAO

IPC: H04W74/0833 ,  H04W72/0453 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W72/0453 ,  H04W74/006

Abstract: Methods, systems, and devices for wireless communication are described to support an indication of one or more carriers of a flexible cell to be used for reception of one or more respective downlink random access messages. A base station may indicate, via system information, a carrier for reception of a downlink control channel scheduling a second random access message. A user equipment (UE) may initiate a random access procedure by transmitting, to the base station, a first random access message. The UE may monitor for and receive the downlink control channel scheduling the second random access message via the carrier indicated in the system information. The UE may receive the second random access message via the same carrier as the associated downlink control channel, or via a different carrier that may be indicated in the system information or in the downlink control channel transmission.

公开(公告)号：US20240283503A1

公开(公告)日：2024-08-22

申请号：US18567460

申请日：2021-09-03

Applicant: QUALCOMM Incorporated

Inventor： Hyojin LEE ,  Yu ZHANG ,  Yi HUANG ,  Kexin XIAO

IPC: H04B7/0456 ,  H04L27/26

CPC classification number: H04B7/0486 ,  H04L27/2605

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive signaling identifying a transmission precoding matrix indicator associated with a transmit codebook configured for three antenna ports. The UE may transmit an uplink communication in accordance with the transmit codebook configured for three antenna ports. Numerous other aspects are described.

公开(公告)号：US20240215063A1

公开(公告)日：2024-06-27

申请号：US18288175

申请日：2021-07-01

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  Mahmoud TAHERZADEH BOROUJENI ,  Kexin XIAO

IPC: H04W74/00 ,  H04L1/1812 ,  H04W74/0833

CPC classification number: H04W74/004 ,  H04L1/1816 ,  H04W74/0833

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for responses to Msg3 PUSCH repetition requests of a UE. In a first aspect, the UE may transmit, to a base station, a request for repetitions of at least one of a PUSCH transmission or a PUSCH retransmission for a random access Msg3 and receive, from the base station, an indication to use one or more fields to determine a number of repetitions of the at least one of the PUSCH transmission or the PUSCH retransmission for the random access Msg3. In a second aspect, the transmitted request may indicate to the base station to use the one or more fields to determine the number of the repetitions of the at least one of the PUSCH transmission or the PUSCH retransmission. The UE may transmit the number of repetitions based on the transmitted indication.

公开(公告)号：US20240214150A1

公开(公告)日：2024-06-27

申请号：US18547484

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

Inventor： Kexin XIAO ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Runxin WANG ,  Alexandros MANOLAKOS ,  Bo CHEN ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON ,  Yeliz TOKGOZ

IPC: H04L5/00 ,  H04W72/0446 ,  H04W72/1268 ,  H04W76/20

CPC classification number: H04L5/0051 ,  H04W72/0446 ,  H04W72/1268 ,  H04W76/20

Abstract: Aspects of the disclosure relate to utilizing SRS resources for various types of usages and configuring transmit power on the SRS resources. In an aspect, a user equipment (UE) may determine whether a time gap between a first sounding reference signal (SRS) resource for a first usage and a second SRS resource for a second usage in time is less than a time threshold. Further, the UE may transmit an SRS utilizing one of the first SRS resource or the second SRS resource for both the first usage and the second usage, in response to determining that the time gap is less than the time threshold.

公开(公告)号：US20240147546A1

公开(公告)日：2024-05-02

申请号：US18549269

申请日：2022-05-11

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  Kexin XIAO ,  Gokul SRIDHARAN

IPC: H04W74/0836 ,  H04L1/1867 ,  H04L5/00

CPC classification number: H04W74/0836 ,  H04L1/189 ,  H04L5/0053

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a physical random access channel (PRACH) message corresponding to a PRACH occasion, wherein the PRACH occasion comprises a dedicated PRACH occasion or one of a plurality of PRACH occasions comprising at least one shared PRACH occasion associated with a two-step random access channel (RACH) procedure and a four-step RACH procedure, wherein the PRACH message includes a request for physical uplink shared channel (PUSCH) repetition corresponding to a radio resource control (RRC) connection request message of the four-step RACH procedure. The UE may transmit at least one PUSCH repetition associated with the RRC connection request message based at least in part on the request. Numerous other aspects are described.

公开(公告)号：US20240121035A1

公开(公告)日：2024-04-11

申请号：US18263671

申请日：2021-03-09

Applicant: QUALCOMM INCORPORATED

Inventor： Kexin XIAO ,  Liangming WU ,  Changlong XU ,  Kangqi LIU ,  Jian LI ,  Hao XU ,  Ruiming ZHENG ,  Wei LIU

IPC: H04L1/1867

CPC classification number: H04L1/189 ,  H04L1/1874

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a wireless device may In use non-uniformly distributed bits for amplitude mapping and uniformly distributed bits for sign mapping to support probabilistic constellation shaping (PCS) for transmission of a message. To provide a coding gain with one or more retransmissions of the message, the device may configure redundancy versions based on the non-uniform distribution of one or more symbols. In some examples, the device may include the same set of non-uniformly distributed systematic bits or at least a portion of non-uniformly distributed systematic bits in each redundancy version of the message. Additionally or alternatively, the device may use multiple modulation and coding scheme (MCS) values to modulate one or more of the redundancy versions, where a first MCS value is used to modulate non-uniformly distributed symbols and a second MCS value is used to modulate uniformly distributed symbols.