公开(公告)号：US11664961B2

公开(公告)日：2023-05-30

申请号：US16949305

申请日：2020-10-23

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Peter Pui Lok Ang ,  Tingfang Ji

IPC: H04L5/14 ,  H04L7/033 ,  H04W72/0453 ,  H04W74/08 ,  H04L27/26 ,  H04W24/08 ,  H04L5/00

CPC classification number: H04L5/14 ,  H04L5/0048 ,  H04L7/0331 ,  H04L27/2605 ,  H04W24/08 ,  H04W72/0453 ,  H04W74/0825 ,  H04W74/0833

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a guard period associated with switching from a first communication mode to a second communication mode. The UE may be operating in a half-duplex frequency division duplexing mode of operation. The guard period may be determined based at least in part on at least one of: a number of phased locked loops to be used for the first communication mode and the second communication mode, and a particular subcarrier spacing associated with the UE. The UE may switch from the first communication mode to the second communication mode based at least in part on the guard period. Numerous other aspects are provided.

公开(公告)号：US11659575B2

公开(公告)日：2023-05-23

申请号：US17163277

申请日：2021-01-29

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Gokul Sridharan

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W72/0446

CPC classification number: H04W72/0493 ,  H04L5/0048 ,  H04W72/042 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling indicating a set of resources for transmitting a set of uplink shared channel transmissions and a set of demodulation reference signals (DMRSs) having phase coherence across a set of transmission time intervals (TTIs). The UE may receive, from the base station, a control message indicating a cancellation of a first resource of the set of resources. The UE may determine one or more phase-continuity conditions for the set of resources based on receiving the control message indicating the cancellation of the first resource. The UE may transmit, in remaining resources of the set of resources, at least a subset of the set of uplink shared channel transmissions and at least a subset of the set of DMRSs in accordance with the one or more phase-continuity conditions.

公开(公告)号：US20230156601A1

公开(公告)日：2023-05-18

申请号：US17529847

申请日：2021-11-18

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy Abdelghaffar ,  Wanshi Chen ,  Peter Gaal ,  Gokul Sridharan ,  Hung Dinh Ly

IPC: H04W52/02 ,  H04W24/10 ,  H04L5/00

CPC classification number: H04W52/0235 ,  H04W52/0258 ,  H04W24/10 ,  H04L5/0051

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a wireless network device (e.g., a base station or a transmission reception point (TRP) of the base station), a first control message comprising an indication of a set of energy saving modes of the wireless network device. The UE may receive a second control message indicating a first energy saving mode from the set of energy saving modes, where the first energy saving mode may be indicative of a number of channel state information (CSI) reference signal (CSI-RS) resources used by the wireless network device. The UE may monitor one or more of the CSI-RS resources for a CSI-RS in accordance with the first energy saving mode, and transmit, to the wireless network device, CSI feedback determined based on measurements made by the UE of the CSI-RS.

公开(公告)号：US11616633B2

公开(公告)日：2023-03-28

申请号：US17005195

申请日：2020-08-27

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Renqiu Wang ,  Wanshi Chen ,  Seyedkianoush Hosseini ,  Peter Pui Lok Ang ,  Peter Gaal ,  Tingfang Ji

IPC: H04L5/16 ,  H04W72/04 ,  H04L5/00 ,  H04W72/14 ,  H04L41/0803 ,  H04W72/10 ,  H04L1/08 ,  H04L1/1812

Abstract: A UE may be configured for half-duplex communications. An access point may configure half-duplex UEs for efficient resource utilization using two or more different half-duplex configurations that include different timing for channels in different directions. A UE may determine a half-duplex configuration for use in communicating with the access point, each slot of the half-duplex configuration including at least a PDCCH on a downlink frequency and an uplink short burst on an uplink frequency, and each slot associated with a HARQ timeline. The UE may determine a direction for a slot. The UE may transmit or receive according to the direction for the slot and the half-duplex configuration.

公开(公告)号：US11582795B2

公开(公告)日：2023-02-14

申请号：US17160156

申请日：2021-01-27

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W74/00 ,  H04W74/08 ,  H04W56/00 ,  H04W72/0446 ,  H04W72/04

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 and data associated with a random access response (RAR) during an RAR window. The UE may identify a channel quality and may transmit a random access request of a first type to the base station. The base station may receive the random access request and transmit repeating instances of the control information or the data, or both, based on identifying that the random access request is of the first type. The UE may use soft-combining to increase the likelihood of successfully decoding the control information and the data associated with the RAR, and likewise may increase the likelihood of successfully receiving the RAR from the base station.

公开(公告)号：US11582794B2

公开(公告)日：2023-02-14

申请号：US17127120

申请日：2020-12-18

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W74/00 ,  H04W72/04 ,  H04W72/0446 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive signaling indicating a configuration for communicating to the UE a random access response of a random access procedure. The configuration may indicate a first quantity of instances of control information associated with the random access response in a set of slots and a portion of the time window configured for the first quantity of instances. The UE may monitor the set of slots for instances of the control information and receive a second quantity of instances of the control information for the UE in a first subset of slots of the set of slots. The second quantity of instances may be less than the first quantity of instances. The UE may combine the instances of the control information from the first subset of slots and decode the random access response based on combining the instances.

公开(公告)号：US20230044521A1

公开(公告)日：2023-02-09

申请号：US17758417

申请日：2020-12-14

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Muhammad Sayed Khairy Abdelghaffar ,  Alexandros Manolakos ,  Hung Dinh Ly ,  Huilin Xu ,  Krishna Kiran Mukkavilli ,  Wanshi Chen ,  Tingfang JI ,  Shimman Arvind Patel

IPC: H04L5/14 ,  H04L5/16 ,  H04W74/08

Abstract: Systems and methods in which one or more wireless communication stations implement duplex-mode remediation to facilitate the signal communication when an issue with respect to self-interference is identified are described. Duplex-mode remediation may be implemented for various communication scenarios, such as for random access phase communications, for communications having different priorities, etc. A wireless communication station may implement one or more changes with respect to the full duplex operation of the wireless communication station based upon determining that an issue with respect to self-interference may be, or is being, experienced, such as to provide for a wireless communication station operating in an in-band full duplex mode to increase interference cancellation and/or to fall back to a sub-band full duplex mode or a half duplex mode, to provide for a wireless communication station operating in a sub-band full duplex mode to increase interference cancellation and/or to fall back to a half duplex mode.

公开(公告)号：US11564253B2

公开(公告)日：2023-01-24

申请号：US17023840

申请日：2020-09-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/00 ,  H04W56/00 ,  H04W74/08 ,  H04L5/10 ,  H04L1/00 ,  H04W76/27 ,  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：US11564137B2

公开(公告)日：2023-01-24

申请号：US17196575

申请日：2021-03-09

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Heechoon Lee ,  Tingfang Ji

IPC: H04W36/00 ,  H04W36/30 ,  H04W76/27 ,  H04L5/00 ,  H04W68/02 ,  H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may operate in a radio resource control (RRC) inactive state of a discontinuous reception (DRX) mode. The UE may receive one or more synchronization signal blocks (SSBs) over a serving single frequency network (SFN) for a first notification zone, wherein the first notification zone comprises a plurality of cells. The UE may perform a channel measurement procedure using the received one or more SSBs. The UE may determine, based at least in part on a result of the channel measurement procedure, that a channel performance metric for the serving SFN of the first notification zone fails to satisfy a threshold. The UE may perform a cell reselection procedure to identify a cell of a neighboring SFN for a second notification zone that has a channel performance metric satisfying the threshold.

公开(公告)号：US11558853B2

公开(公告)日：2023-01-17

申请号：US16834759

申请日：2020-03-30

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Jing Lei ,  Wanshi Chen

IPC: H04W72/04 ,  H04W74/08

Abstract: This disclosure describes methods, devices, and systems for techniques related to random access procedures, such as a two-step random access procedure. Generally, the described techniques support physical uplink shared channel (PUSCH) occasion (PO) aggregation in random access procedures, including aggregation configurations and communication schemes that support enhanced data transmissions, such as small data transmissions, in random access procedures. In some examples, the described techniques may include aggregating POs in a time domain, or a frequency domain, or both. A device, such as a user equipment (UE) may aggregate, in one or more of a time domain or a frequency domain, multiple POs of a set of POs, and transmit, to a device such as a base station, a random access payload of a random access message on a PUSCH using time and frequency resources of the aggregated multiple POs.