公开(公告)号：US20230337136A1

公开(公告)日：2023-10-19

申请号：US17721201

申请日：2022-04-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04W72/12

CPC classification number: H04W52/0235 ,  H04W52/0216 ,  H04W72/1284 ,  H04W72/1263

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit one or more messages indicating a first time period having a duration prior to expected traffic being available for transmission at the UE, and indicating a size associated with the expected traffic (e.g., a quantity of bits). In some examples, the one or more messages may include a UE assistance information (UAI) message or a buffer status report (BSR) message. The UE may receive a response message based on the one or more messages indicating that a network entity is to enter a sleep mode during a second time period based on the first time period and the size associated with the expected traffic. In some examples, the network entity may enter the sleep mode based on the first time period and the size associated with the expected traffic.

公开(公告)号：US11791969B2

公开(公告)日：2023-10-17

申请号：US17409162

申请日：2021-08-23

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy Abdelghaffar ,  Hung Dinh Ly ,  Huilin Xu ,  Krishna Kiran Mukkavilli ,  Wanshi Chen ,  Hwan Joon Kwon ,  Tingfang Ji

IPC: H04L5/00 ,  H04W24/10

CPC classification number: H04L5/0057 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, signaling indicating a channel state information (CSI) report configuration. The CSI report configuration may indicate a mapping between one or more CSI reference signal (CSI-RS) resources or one or more CSI-RS port groups and one or more antenna panels or antenna subpanels of the base station. The UE may generate CSI feedback based on the mapping. In some cases, the UE may generate the CSI feedback based on multiple hypotheses that correspond to CSI-RS measurements. In some examples, the multiple hypotheses may include a set of hypothesis groups based on one or more antenna panels or antenna subpanels of the base station. The UE may transmit a message reporting the CSI feedback to the base station.

公开(公告)号：US11785491B2

公开(公告)日：2023-10-10

申请号：US17466779

申请日：2021-09-03

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Wanshi Chen

IPC: H04W24/10 ,  H04L5/00 ,  H04W76/10

CPC classification number: H04W24/10 ,  H04L5/0048 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a transmitting device may transmit a reference signal indicating a first service type supported by the transmitting device and a receiving device may receive the reference and determine whether to measure a signal strength associated with the reference signal based on determining whether the first service type supported by the transmitting device and a second service type supported by the receiving device are a same service type. For example, the receiving device may measure the reference signal if the first service type indicated by the reference signal and the second service type supported by the receiving device are the same service type. Alternatively, the receiving device may refrain from measuring the reference signal if the first service type indicated by the reference signal and the second service type supported by the receiving device are different service types.

公开(公告)号：US11778552B2

公开(公告)日：2023-10-03

申请号：US17225973

申请日：2021-04-08

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Peter Gaal ,  Nathan Yee ,  Hung Dinh Ly ,  Wooseok Nam ,  Linhai He ,  Wanshi Chen ,  Huilin Xu ,  Yuchul Kim

IPC: H04W52/02 ,  H04W68/02 ,  H04W72/1273

CPC classification number: H04W52/0216 ,  H04W68/02 ,  H04W72/1273

Abstract: A method of wireless communication by a base station includes configuring a tracking reference signal (TRS) with respect to a physical downlink shared channel (PDSCH) for an idle/inactive mode user equipment (UE). The method also transmits the tracking reference signal and the PDSCH during a paging cycle, in accordance with the configuration. A method of wireless communication by a UE includes expecting a TRS to be received when a PDSCH is received.

公开(公告)号：US11765771B2

公开(公告)日：2023-09-19

申请号：US17868588

申请日：2022-07-19

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Linhai He ,  Hung Dinh Ly ,  Seyong Park ,  Naga Bhushan ,  Ying Wang ,  Wanshi Chen ,  Joseph Binamira Soriaga

IPC: H04L1/18 ,  H04W74/08 ,  H04W76/27 ,  H04L1/1812 ,  H04L5/00 ,  H04L5/10 ,  H04W24/08 ,  H04W80/02 ,  H04W72/23

CPC classification number: H04W74/0808 ,  H04L1/1819 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/10 ,  H04W24/08 ,  H04W72/23 ,  H04W76/27 ,  H04W80/02

Abstract: Fallback procedures for user equipments (UEs) are described that provide efficient fallback to a four-step random access procedure from a two-step random access procedure. For example, after transmitting a first message of a two-step random access procedure, a UE may start a fallback timer or counter and monitor for a second message of the two-step random access procedure for the duration of the fallback timer or counter. At the expiration of the fallback timer or counter, the UE may fall back to a four-step random access procedure. In some cases, the UE may transmit multiple repetitions of the first message and monitor for responses after transmitting the repetitions or after each repetition. Additionally, or alternatively, the base station may transmit an explicit signal to the UE that may signal to the UE to perform a fallback procedure at a beginning or middle of a random access procedure.

公开(公告)号：US11751147B2

公开(公告)日：2023-09-05

申请号：US16123784

申请日：2018-09-06

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Tao Luo

IPC: H04W56/00 ,  H04J11/00 ,  H04B7/26

CPC classification number: H04W56/001 ,  H04J11/0073 ,  H04J11/0076 ,  H04W56/0025 ,  H04B7/2656

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may identify that a band is associated with a first numerology and a second numerology for synchronization, and/or perform a synchronization scan to identify a synchronization signal block using stored data, wherein the stored data includes data regarding a plurality of frequency locations of the band, and wherein the synchronization scan is performed with regard to a first set of frequency locations, of the plurality of frequency locations, associated with the first numerology, and wherein the synchronization scan is performed with regard to a second set of frequency locations, of the plurality of frequency locations, associated with the second numerology, wherein the second set of frequency locations includes a proper subset of frequency locations of the plurality of frequency locations. Numerous other aspects are provided.

公开(公告)号：US11716183B2

公开(公告)日：2023-08-01

申请号：US17387248

申请日：2021-07-28

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  June Namgoong ,  Taesang Yoo ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Hwan Joon Kwon ,  Pavan Kumar Vitthaladevuni ,  Jay Kumar Sundararajan

IPC: H04L5/00 ,  H04B17/309

CPC classification number: H04L5/0048 ,  H04B17/309

Abstract: Methods, systems, and devices for wireless communications are described. A configuration for a reference signal used to determine a non-linear behavior of transmission components at a transmitting device may be determined. The configuration for the reference signal may be determined based on signaling transmitted by the transmitting device, signaling transmitted by a device that receives the reference signal, or both. Additionally, or alternatively, the configuration for the reference signal may be determined based on a configuration of other signals transmitted by the transmitting device prior to or concurrently with the transmission of the reference signal. The determined configuration may be used to generate and transmit the reference signal or to determine a configuration of a received reference signal. In both cases, a non-linear response of transmission components at the transmitting device may be determined based on the reference signal.

公开(公告)号：US20230217396A1

公开(公告)日：2023-07-06

申请号：US18051339

申请日：2022-10-31

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W74/08

CPC classification number: H04W56/0045 ,  H04W74/0833

Abstract: In some aspects, a user equipment (UE) determines a transmission gap adjustment (TGA) for a first message (msgA) of a 2 step random access channel (RACH) procedure based on measurement of a reference signal transmitted by a base station as well as the radio resource configuration (RRC) configurations for msgA. In other aspects, a base station transmits a system information block (SIB) or RRC signaling that indicates at least one possible configuration of the TGA, and UEs determine the TGA depending on RRC state. Connected mode UEs having a timing alignment (TA) timer running may determine the TGA based on a previous TA. UEs in other RRC modes determine the TGA based on the possible configuration transmitted in the SIB or RRC signaling. Advantageously, 2 step RACH UEs are able to communicate with the base station without the closed loop TA information provided by a 4 step RACH.

公开(公告)号：US11690087B2

公开(公告)日：2023-06-27

申请号：US17084302

申请日：2020-10-29

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Hung Dinh Ly ,  Peter Pui Lok Ang ,  Muhammad Sayed Khairy Abdelghaffar ,  June Namgoong

IPC: H04W72/04 ,  H04L5/14 ,  H04W72/53 ,  H04W72/0453 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04L5/14 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: Generally, the described techniques provide for duplex mode configuration for control information (e.g., duplex mode configuration for communication of downlink control information). For example, duplex modes may be defined (e.g., as full duplex (FD) capable, FD only, half duplex (HD) only, etc.), and such duplex modes may be configured for control resource sets (CORESETs), search space (SS) sets, or both. In some examples, duplex modes configured for a CORESET/SS set may depend on the priority of information conveyed via the CORESET/SS set. For example, a CORESET/SS set for high priority or critical control information may be configured with a HD mode to avoid FD self-interference, while CORESET/SS set for other control information may be configured with a FD mode to improve spectrum efficiency. Techniques for resolving conflicting duplex mode configurations (e.g., when a HD mode is configured for a SS set within a CORESET configured with FD) are also described.

公开(公告)号：US20230199649A1

公开(公告)日：2023-06-22

申请号：US17555150

申请日：2021-12-17

Applicant: QUALCOMM Incorporated

Inventor： Yongjun Kwak ,  Hung Dinh Ly ,  Ahmed Attia Abotabl ,  Hwan Joon Kwon

IPC: H04W52/02 ,  H04W56/00 ,  H04W74/08

CPC classification number: H04W52/0229 ,  H04W56/001 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. Base stations may reduce energy consumption by minimizing the use of periodic signals such as the system information block one (SIB1), which a user equipment (UE) may use to perform a random access channel (RACH) procedure with a base station. A UE may transmit a wake-up signal to the base station requesting an SIB1. The base station may transmit a synchronization signal block (SSB) that indicates that the base station is not transmitting an SIB1, and the UE may transmit the cell wake-up signal in response. A base station may refrain from periodically transmitting SSBs. A UE may determine that it is within range of a base station and that it has not received an SSB. The UE may transmit a wake-up signal to the base station, and the base station may transmit an SSB and an SIB1 to the UE.