公开(公告)号：US11611378B2

公开(公告)日：2023-03-21

申请号：US17028974

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Yu Zhang

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/17 ,  H04B7/26

Abstract: Enhanced channel state information (CSI) feedback is disclosed for full dimensional multiple input, multiple output (FD-MIMO) operations. In one aspect, a single CSI process is defined that is configured with an azimuth and elevation CSI-reference signal (RS) ports. A user equipment (UE) will send a precoding matrix indictor (PMI) report including a precoding matrix indicator (PMI) for the azimuth ports and a PMI for the elevation ports. One of the PMIs is assigned a low rank. The base station will use the two PMIs to create a whole channel precoding matrix. In another aspect, a single CSI process is configured having a plurality of CSI-RS resources. The UE generates channel measurement information for each of the CSI-RS resources, but only sets a CSI report to the base station of a subset of the total number of resources.

公开(公告)号：US11595982B2

公开(公告)日：2023-02-28

申请号：US16871507

申请日：2020-05-11

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wanshi Chen ,  Peter Gaal ,  Seyed Ali Akbar Fakoorian

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W74/08 ,  H04W76/27 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described to enable a user equipment (UE) to determine a rate-matching scheme or a feedback scheme for overlapping downlink transmission resources. A collision handling scheme may enable the UE to de-rate match a second, higher priority downlink shared channel independent of another rate-matching pattern or indicator for other shared channels, such as a first, overlapping downlink shared channel. The UE may determine to de-rate match the second channel around resources indicated within control signaling or higher-layer signaling associated with the second channel. The collision scheme may provide for the UE to generate an acknowledgement bit for feedback for one or more portions of the first channel that are preempted by the second channel and generate other feedback for non-preempted portions. A base station may keep track of preempted resources and may retransmit preempted portions of the first channel.

公开(公告)号：US11589292B1

公开(公告)日：2023-02-21

申请号：US17661996

申请日：2022-05-04

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng Wang ,  Liangping Ma ,  Bharat Shrestha ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Ayan Sengupta ,  Peter Gaal ,  Wanshi Chen ,  Juan Montojo

IPC: H04W48/10 ,  H04B7/185

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from an entity of a non-terrestrial network (NTN), a system information block (SIB) that indicates information relating to one or more NTN SIBs that are to include at least one of ephemeris information or feeder link timing advance information. The UE may receive, from the entity of the NTN, the one or more NTN SIBs based at least in part on the information. Numerous other aspects are described.

公开(公告)号：US11582787B2

公开(公告)日：2023-02-14

申请号：US17235487

申请日：2021-04-20

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Peter Gaal ,  Wanshi Chen ,  Alexei Yurievitch Gorokhov ,  Jing Sun ,  Joseph Binamira Soriaga ,  Heechoon Lee

IPC: H04W4/00 ,  H04W72/12 ,  H04L5/00 ,  H04W28/06 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263

Abstract: Different sets of downlink control information (DCI) fields may be configured for DCI that includes an indication to trigger bandwidth part switching at a user equipment (UE). For example, a UE may receive DCI that triggers the UE to switch operation from a first bandwidth part to a second bandwidth part. The UE may also identify a set of transformable DCI fields and a set of non-transformable DCI fields within the DCI. The UE may then determine updated content of the DCI for application to the second bandwidth part based on whether DCI fields are included in the set of transformable or the set of non-transformable fields. In some cases, the UE may identify a null assignment in the received DCI and may switch its operation from the first bandwidth part to the second bandwidth part based on the null assignment.

公开(公告)号：US11582635B2

公开(公告)日：2023-02-14

申请号：US16660595

申请日：2019-10-22

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Junyi Li ,  Shailesh Patil ,  Kapil Gulati ,  Wanshi Chen ,  Arjun Bharadwaj

IPC: H04W28/02 ,  H04W40/12 ,  H04W72/10 ,  H04W74/08 ,  H04W76/27 ,  H04W72/044 ,  H04W74/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may iterate a value of a channel access counter (CAC) to a trigger value based at least in part on configuring the value of the CAC. In some aspects, the first wireless communication device may utilize a channel access mechanism to select a set of time-frequency resources for a transmission of a packet based at least in part on iterating the value of the CAC to the trigger value. In some aspects, the first wireless communication device may transmit the packet to a second wireless communication device via the set of time-frequency resources based at least in part on utilizing the channel access mechanism to select the set of time-frequency resources for the transmission. Numerous other aspects are provided.

公开(公告)号：US11582634B2

公开(公告)日：2023-02-14

申请号：US17652649

申请日：2022-02-25

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Linhai He ,  Wanshi Chen ,  Ruiming Zheng ,  Alexandros Manolakos

IPC: H04W28/02 ,  H04L5/00 ,  H04W48/16 ,  H04W72/10

Abstract: Certain aspects of the present disclosure provide techniques for configuring parameters for small data transfer (SDT) transmissions. One example technique provides a method for wireless communications at a user equipment (UE), involving: obtaining configuration information received from a network entity, the configuration information indicating a plurality of configurations for small data transfer (SDT) transmission, determining at least one of a transport block size (TBS) or data threshold for SDT transmission based on one of the configurations, and outputting for transmission one or more SDT transmissions based on the determination.

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：US20230041212A1

公开(公告)日：2023-02-09

申请号：US17395442

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Wanshi Chen ,  Jelena Damnjanovic ,  Olufunmilola Omolade Awoniyi-Oteri ,  Linhai He

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit, to a user equipment (UE), a control message in a first control channel occasion associated with a first quasi-colocation (QCL) property, the control message indicating a transmission of a data message within a threshold time period. The UE may receive, from the base station, an indication to skip monitoring of a second control channel occasion within the threshold time period and may receive the data message in accordance with a second QCL property, or drop reception of the data message, based on the indication. Additionally, or alternatively, the base station may transmit a message indicating a unified transmission configuration indicator (TCI) state associated with the second QCL property, and the UE may receive the data message in accordance with the second QCL property based on the unified TCI state.

公开(公告)号：US11576126B2

公开(公告)日：2023-02-07

申请号：US17189997

申请日：2021-03-02

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Sudhir Kumar Baghel ,  Shuanshuan Wu ,  Kapil Gulati ,  Wanshi Chen ,  Gabi Sarkis ,  Seyedkianoush Hosseini ,  Gokul Sridharan

IPC: H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application and may identify a mapping between an attribute of the signal and an identifier associated with the application. The UE may determine a wakeup procedure in response to receiving the signal based on the mapping between the attribute of the signal and the identifier associated with the application.

公开(公告)号：US11575551B2

公开(公告)日：2023-02-07

申请号：US17040596

申请日：2019-03-25

Applicant: Qualcomm Incorporated

Inventor： Yiqing Cao ,  Wanshi Chen ,  Jing Lei ,  Renqiu Wang

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04L25/02 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications are described. In some systems (e.g., non-orthogonal multiple access (NOMA) systems), a base station may serve a large number of user equipments (UEs) on the uplink. To improve detectability for these uplink transmissions (e.g., if reference signals are not available for the transmissions), the UEs may implement parallel transmissions of preambles with uplink data. A UE may split the uplink data into one or more data layers, and may select one or more preamble layers to transmit superposed with the data layers. These preambles may be sequences known to both the UE and the base station to aid in detectability. The UE may assign different signature sequences to each of these layers based on cross-correlation values (e.g., assigning sequences with higher cross-correlation values to the data layers for improved detectability), and may scramble the layers into a single shared signal for transmission.