公开(公告)号：US20240137261A1

公开(公告)日：2024-04-25

申请号：US18547682

申请日：2021-04-22

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/34 ,  H04L5/00

CPC classification number: H04L27/34 ,  H04L5/0053 ,  H04L5/0091

Abstract: Methods, systems, and devices for wireless communications are described in which a receiving device, such as a base station or user equipment (UE), may receive an input signal that is modulated according to a probabilistic amplitude shaping (PAS) modulation technique. The receiving device may determine an associated channel noise estimate and may scale the input signal and the channel noise estimate based on a probability distribution parameter that is associated with the PAS modulation. The receiving device may demap the modulation constellation of the input signal based on the scaled input signal and the scaled channel noise estimate and provide one or more bits associated with the PAS modulated constellation. The probability distribution parameter may be estimated at the receiving device, or the transmitting device may provide the probability distribution parameter to the receiving device.

公开(公告)号：US20240048287A1

公开(公告)日：2024-02-08

申请号：US18256042

申请日：2021-02-10

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/1829

CPC classification number: H04L1/1832 ,  H04L1/1848

Abstract: Apparatus, methods, and computer-readable media for network coding for dual connectivity are disclosed herein. A base station (BS) sends encoded symbols from a first network coding layer to a first radio link control (RLC) layer and transmits, to a user equipment (UE), encoded data comprising the encoded symbols. The BS also transmits encoded data to a road side unit (RSU) for passing to the UE as a split transmission. The UE can receive encoded packets from the BS and RSU at a network coding layer via a second RLC layer. The UE recovers source packets from the encoded packets with a rateless network code at the network coding layer. The UE sequences the source packets into an ordered set of source packets at the network coding layer and sends the ordered set of source packets from the network coding layer to a packet data convergence protocol layer for processing.

公开(公告)号：US20240015707A1

公开(公告)日：2024-01-11

申请号：US18253774

申请日：2022-01-13

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  Kexin XIAO

IPC: H04W72/0446 ,  H04L25/02 ,  H04L5/00 ,  H04W72/21

CPC classification number: H04W72/0446 ,  H04L25/0226 ,  H04L5/0051 ,  H04L5/0053 ,  H04W72/21

Abstract: Aspects are provided that allow a UE to perform DMRS bundling in PUCCH 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 control channel transmission. 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 processes 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 PUCCH transmissions.

公开(公告)号：US20220330218A1

公开(公告)日：2022-10-13

申请号：US17716306

申请日：2022-04-08

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Kexin XIAO ,  Yu ZHANG

IPC: H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a configuration that may identify a set of time and frequency resources for transmission of sounding reference signals, the set of time and frequency resources including a plurality of subsets of time and frequency resources. Each subset of time and frequency resources of the plurality of subsets of time and frequency resources may be associated with a corresponding value of a plurality of values of a partial frequency parameter. The UE may receive control signaling indicating a value of the partial frequency parameter of the plurality of values. The UE may transmit a sounding reference signal on a subset of time and frequency resources of the plurality of subsets of time and frequency resources that corresponds to the value of the partial frequency parameter indicated by the received control signaling.

公开(公告)号：US20250048420A1

公开(公告)日：2025-02-06

申请号：US18713513

申请日：2022-02-24

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/00 ,  H04W74/0833

Abstract: A method for wireless communication performed by a user equipment (UE) includes transmitting, to a network node, a group of physical random access channel (PRACH) preambles. Each PRACH preamble may be transmitted during a respective PRACH occasion of a group of PRACH occasions. The method also includes receiving, from the network node via a downlink control channel, a downlink grant indicating downlink resources for receiving a random access response (RAR) based on transmitting the group of PRACH preambles. The downlink control channel may be scrambled based on a random access-radio network temporary identifier (RA-RNTI) associated with a single PRACH occasion of the group of PRACH occasions. The method still further includes receiving, from the network node via the downlink resources, the RAR based on receiving the downlink grant. The method also includes transmitting, to the network node, a random access message based on receiving the RAR.

公开(公告)号：US20250039799A1

公开(公告)日：2025-01-30

申请号：US18718593

申请日：2022-03-02

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/14 ,  H04W52/50 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to transmit multiple repetitions of a random access message using multiple spatial filters. In some cases, the UE may transmit each repetition of the random access message using a same transmission power determined based on one of the spatial filters. In other cases, the UE may transmit each repetition of the random access message using a different transmission power determined in accordance with power control parameters corresponding to the respective spatial filters. The UE may utilize a spatial filter of a first-received responsive random access message to perform subsequent transmissions of a random access procedure. In the case of a failure of the random access procedure, the UE may increment (or refrain from incrementing) a power ramping counter based on spatial filters used to re-initiate the random access procedure.

公开(公告)号：US20250038881A1

公开(公告)日：2025-01-30

申请号：US18715918

申请日：2022-02-25

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/00 ,  H04L1/24

Abstract: Methods, systems, and devices for wireless communications are described. A receiving device may receive an encoded signal including a set of information blocks. Each information block may include a set of encoded information bits and a set of cyclic redundancy check (CRC) bits. The receiving device may perform a staircase decoding procedure to decode the set of encoded information bits of a selected information block that is part of a subset of the set of information blocks that is within a sliding window. The staircase decoding procedure may include one or more iterations of a decoding process applied to the subset of the set of information blocks. The receiving device may perform, inbetween iterations of the staircase decoding procedure applied to the subset of the set of information blocks within the sliding window, a CRC procedure based on the set of CRC bits in the set of information blocks.

公开(公告)号：US20240405833A1

公开(公告)日：2024-12-05

申请号：US18691632

申请日：2021-11-08

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0456 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit, from a UE to a base station, one or more reference signals over a channel. The UE may receive, from the base station based at least in part on transmitting the one or more reference signals, control signaling indicating a precoding matrix indicator (PMI) and a rank indicator (RI) based at least in part on the UE having at least eight transmit antennas and based at least in part on a phase difference between different subsets of transmit antennas of the at least eight transmit antennas. The UE may transmit, to the base station, an uplink transmission configured according to the PMI and the RI.

公开(公告)号：US20240356588A1

公开(公告)日：2024-10-24

申请号：US18291521

申请日：2021-09-29

Applicant: QUALCOMM Incorporated

Inventor： Kexin XIAO ,  Hyojin LEE ,  Yu ZHANG ,  Yi HUANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Runxin WANG ,  Krishna Kiran MUKKAVILLI

IPC: H04B7/0404 ,  H04B7/0456

CPC classification number: H04B7/0404 ,  H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may communicate on first and second carriers, and may support either two transmit chains or three transmit chains on a second carrier. A base station may configure different sounding reference signal (SRS) resources for different numbers of transmit chains. SRS resources configured with two ports may indicate two transmit chains, and SRS resource configured with three ports may indicate three transmit chains. The base station may indicate an index associated with an SRS resource, and the UE may select (e.g., based on a mapping between the SRS Configuration Information resource index and a number of SRS ports and a number of transmit chains), a corresponding SRS resource, number of ports, number of transmit chains, or any combination thereof. The base station may indicate a number of transmit chains for a given SRS resource based on a PMI index.

公开(公告)号：US20240333350A1

公开(公告)日：2024-10-03

申请号：US18577853

申请日：2021-09-06

Applicant: QUALCOMM Incorporated

Inventor： Hyojin LEE ,  Yu ZHANG ,  Kexin XIAO ,  Hwan Joon KWON

IPC: H04B7/0456

CPC classification number: H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may select a codebook for a multiple-input multiple-output (MIMO) communication from among one or more codebooks that include one or more of non-coherent codebooks for 6 or 8 antennas of the wireless communication device, partially-coherent codebooks for multiple paired antennas of the 6 or 8 antennas of the wireless communication device, or full-coherent codebooks for the 6 or 8 antennas of the wireless communication device. The wireless communication device may transmit or receiving the communication using the codebook. Numerous other aspects are described.