公开(公告)号：US20230156802A1

公开(公告)日：2023-05-18

申请号：US17454889

申请日：2021-11-15

Applicant: Qualcomm Incorporated

Inventor： Ahmed Elshafie ,  Hung Dinh Ly ,  Krishna Kiran Mukkavilli

IPC: H04W74/08 ,  H04L1/18 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04L1/1812 ,  H04W74/006

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support RACH message waveform indication. In a first aspect, a method of wireless communication includes transmitting, by a wireless communication device, a random access control channel (RACH) request message; and receiving, by the wireless communication device, a RACH response message based on the RACH request message, wherein a waveform type of RACH response messages is dynamic, wherein the waveform type of the RACH response message is determined by the wireless communication device, and wherein transmitting the RACH request message and receiving the RACH response message comprise a two-step RACH procedure. Other aspects and features are also claimed and described.

公开(公告)号：US11646826B2

公开(公告)日：2023-05-09

申请号：US17248506

申请日：2021-01-27

Applicant: QUALCOMM INCORPORATED

Inventor： Mahmoud Taherzadeh Boroujeni ,  Sony Akkarakaran ,  Tao Luo ,  Yan Zhou ,  Hung Dinh Ly ,  Wooseok Nam

IPC: H04L1/18 ,  H04W72/00 ,  H04W72/04 ,  H04W74/08

CPC classification number: H04L1/18 ,  H04W72/005 ,  H04W72/042 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may attempt to connect to a base station using a random access procedure. During the random access procedure, the base station may transmit control information associated with a random access response (RAR) during a RAR window. The UE may attempt to receive a single instance of the control information and, in some cases, may be unable to receive and decode the single instance of the control information. The base station may configure one or more RAR windows (or segment(s) thereof) to support transmitting repeating instances of the control information and/or RAR. The UE may identify a quantity of instances of the repeated control information and combine the instances. The UE may successfully decode the combined instances of control information and identify a location for receiving the RAR.

公开(公告)号：US20230126705A1

公开(公告)日：2023-04-27

申请号：US17508725

申请日：2021-10-22

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Muhammad Sayed Khairy Abdelghaffar ,  Hung Dinh Ly ,  Huilin Xu ,  Hwan Joon Kwon

IPC: H04W52/24 ,  H04W56/00 ,  H04W52/38

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive an indication of a transmission power for a synchronization signal block (SSB) transmission by a base station, the indicated transmission power different than a default transmission power for SSB transmissions by the base station. The UE may determine a received power with which the SSB transmission is received at the UE. The UE may receive one or more downlink transmissions from the base station based at least in part on the received power for the SSB transmission and a difference between the default transmission power and the indicated transmission power for the SSB transmission.

公开(公告)号：US20230116090A1

公开(公告)日：2023-04-13

申请号：US17496417

申请日：2021-10-07

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Elshafie ,  Hung Dinh Ly ,  Seyedkianoush Hosseini

IPC: H04W12/037 ,  H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. Devices may synchronize parameters associated with an encryption key to avoid a key mismatch. In a first example, a transmitter and a receiver may each update a respective parameter at each transmission occasion associated with semi-statically allocated resources, regardless of whether signaling is transmitted in the transmission occasion. In a second example, the transmitter and the receiver may each update the respective parameter based on a slot count, rather than at each transmission occasion. In a third example, the transmitter may indicate a value of a transmitter parameter to the receiver, for example in control signaling or in the signaling in each transmission occasion. In a fourth example, the receiver may be enabled to identify a skipped transmission occasion The receiver may be enabled with a feedback process to indicate the receiver recognized the associated transmission occasion was skipped.

公开(公告)号：US20230077869A1

公开(公告)日：2023-03-16

申请号：US17447681

申请日：2021-09-14

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Krishna Kiran Mukkavilli ,  Linhai He

IPC: H04W52/02 ,  H04W74/08

Abstract: Aspects are provided which allow a base station to provide RACH configuration(s) indicating RACH occasions which correspond to wake up occasions of a base station according to a power savings mode of the base station. The base station sends one or more RACH configurations indicating ROs to a UE, and then monitors the ROs associated with the power savings mode. The UE determines the ROs associated with the power savings mode, and sends a wake up signal to the base station in at least one of the determined ROs. The base station obtains the wake up signal from the UE in at least one of the monitored ROs. Here, the wake up signal comprises a RACH message. As a result, network power consumption may be optimized through designed configurations which allow a UE to wake up a sleeping base station via a RACH message.

公开(公告)号：US11606820B2

公开(公告)日：2023-03-14

申请号：US17021667

申请日：2020-09-15

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Punyaslok Purkayastha ,  Ozcan Ozturk

IPC: H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first base station may determine collision avoidance information for avoiding collisions of physical random access channel communications from one or more user equipment. The collision avoidance information may include subcarrier spacing information and/or beam correspondence information. The first base station may transmit the collision avoidance information to a second base station. Numerous other aspects are provided.

公开(公告)号：US11601981B2

公开(公告)日：2023-03-07

申请号：US16913982

申请日：2020-06-26

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Wanshi Chen ,  Jing Lei

IPC: H04W72/04 ,  H04W74/08

Abstract: A random access configuration information having a plurality of random access configurations that may be utilized by UE to provide coverage enhancements for a two-step RACH process. The apparatus receives, from a base station, random access configuration information. The random access configuration information comprising a plurality of random access configurations. The apparatus selects one of the plurality of random access configurations. The apparatus generates a first random access message having a preamble and a payload, based on the selected random access configuration. The apparatus transmits the first random access message to the base station to initiate a random access procedure.

公开(公告)号：US20230064736A1

公开(公告)日：2023-03-02

申请号：US18055026

申请日：2022-11-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Wanshi Chen ,  Linhai He ,  Hung Dinh Ly ,  Seyong Park

IPC: H04W74/00 ,  H04W74/08 ,  H04L5/10 ,  H04W76/27 ,  H04L1/00 ,  H04W56/00 ,  H04W76/11 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described that relate to a two-step random access procedure. Generally, the described techniques allow different configurations for a first message of a random access procedure depending on a connected-state of the user equipment (UE) performing the random access procedure. A base station may transmit configuration information to the UE and the UE may use the configuration information to determine resources, coding, block size, or other factors for transmitting the first message based on the radio resource control (RRC) connected state of the UE. The UE may then monitor for a random access response from the base station based on the first message from the UE.

公开(公告)号：US20230050382A1

公开(公告)日：2023-02-16

申请号：US17402458

申请日：2021-08-13

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Elshafie ,  Hung Dinh Ly ,  Seyedkianoush Hosseini ,  Wei Yang

IPC: H04W76/14 ,  H04L5/00 ,  H04L1/18 ,  H04W72/02 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A first wireless device may establish a sidelink communications link with a second wireless device. The first wireless device may transmit, to the second wireless device, an indication of a capability to support a configuration for phase continuity between multiple physical channel transmissions of the sidelink communication link. The first wireless device may transmit one or more physical channel transmissions, which each may be associated with a set of one or more demodulation reference signals (DMRSs) to the second wireless device in accordance with the indicated configuration for phase continuity between the physical channel transmissions. The second wireless device may determine channel parameters associated with the one or more physical channel transmissions based on a joint channel estimation associated with the one or more sets of DMRSs.

公开(公告)号：US20230020254A1

公开(公告)日：2023-01-19

申请号：US17379782

申请日：2021-07-19

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Huilin XU ,  Muhammad Sayed Khairy Abdelghaffar ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Linhai He

IPC: H04W76/28 ,  H04W52/02

Abstract: Methods, systems, and devices for dynamically configuring connected discontinuous reception (C-DRX) configurations supporting network power modes are described. In some examples, a user equipment (UE) may receive a first control signaling configuring the UE with multiple C-DRX configurations, each C-DRX configuration of the multiple C-DRX configurations corresponding to a respective network power mode. In some examples, the UE may receive a second control signaling including an identifier indicating a C-DRX configuration, of the multiple C-DRX configurations, corresponding to a first network power mode (e.g., an enhanced network power savings mode) at a base station, where the first network power mode may indicated a set of features active at the base station. The UE may communicate with the base station in accordance with the indicated C-DRX configuration and based on the first network power mode.