公开(公告)号：US12101268B2

公开(公告)日：2024-09-24

申请号：US17455194

申请日：2021-11-16

Applicant: QUALCOMM Incorporated

Inventor： Qunfeng He ,  Arvind Vardarajan Santhanam ,  Aamod Khandekar ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00 ,  H04W24/08 ,  H04W24/10

CPC classification number: H04L5/0048 ,  H04W24/08 ,  H04W24/10

Abstract: Apparatus, methods, and computer program products for serving cell measurement based on CSI-RS RRM are provided. An example apparatus may transmit, to a base station, an indication indicating support for reporting one or more serving cell channel state information reference signal (CSI-RS) radio resource management (RRM) measurements independent of non-serving cell CSI-RS RRM measurements. The example apparatus may receive, from the base station, a configuration of layer 3 measurement resources. The example apparatus may perform, based on the configuration of the layer 3 measurement resources, the one or more serving cell CSI-RS RRM measurements. The example apparatus may transmit, to the base station, the one or more serving cell CSI-RS RRM measurements for a serving cell.

公开(公告)号：US11943761B2

公开(公告)日：2024-03-26

申请号：US17481174

申请日：2021-09-21

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Enoch Shiao-Kuang Lu ,  Alexei Yurievitch Gorokhov ,  Aamod Khandekar ,  Brian Clarke Banister ,  Raghu Narayan Challa ,  Kuo-Chun Lee ,  Arvind Vardarajan Santhanam ,  Jianming Zhu ,  Arash Ebadi Shahrivar ,  Pranay Sudeep Rungta

IPC: H04W72/52 ,  H04L5/00 ,  H04W72/044 ,  H04W72/1263

CPC classification number: H04W72/1263 ,  H04L5/0051 ,  H04W72/044 ,  H04W72/52

Abstract: A user equipment (UE) may make a joint decision of adaptive receive diversity (ARD) and adaptive transmit diversity (ATD) configurations, including transmit (Tx) and receive (Rx) antennas selection and/or blanking based on downlink (DL) and uplink (UL) traffic conditions. The UE may disable at least one Tx chain for a transmission of a codebook-based sounding reference signal (SRS) (SRS-CB) based on one or more of at least one DL traffic condition or at least one UL traffic condition, and transmit, to a base station, upon disabling the at least one Tx chain, the SRS-CB via an antenna associated with at least one active Tx chain.

公开(公告)号：US20240080692A1

公开(公告)日：2024-03-07

申请号：US17903834

申请日：2022-09-06

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Jae Won Yoo ,  Yongle Wu ,  Lei Xiao ,  Hari Sankar ,  Alexei Yurievitch Gorokhov ,  Yu Zhang ,  Wei Yang ,  Jing Lei

IPC: H04W24/10 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04L5/0051

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) and a network entity may utilize multi-port mobility reference signals to assist with spatial based mobility procedures. The UE may receive a reference signal that is associated with multiple antenna ports. The UE may measure a multi-dimensional channel response based on the reference signal. The multi-dimensional channel response may be associated with measured channel metrics corresponding to the multiple antenna ports. The UE may transmit a report that includes a channel measurement vector based on the multi-dimensional channel response. The channel measurement vector may indicate multiple measured channel metrics for one or more dimensions of the multi-dimensional channel response. The network entity may transmit a message that indicates one or more metrics associated with mobility management for the UE based on the report that indicates the channel measurement vector.

公开(公告)号：US11924666B2

公开(公告)日：2024-03-05

申请号：US17647805

申请日：2022-01-12

Applicant: QUALCOMM Incorporated

Inventor： Jae Won Yoo ,  Hari Sankar ,  Alexei Yurievitch Gorokhov ,  Ashok Mantravadi ,  Weng Chon Ao ,  Paolo Minero ,  Abhinav Sridhar ,  Shriram Swaminathan ,  Gi Hong Song

IPC: H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04L5/0051 ,  H04W56/001

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a first energy level of a demodulation reference signal (DMRS). The UE may measure a second energy level of at least one of a tracking reference signal (TRS) or a synchronization signal block (SSB). The UE may determine, based at least in part on the first energy level and the second energy level, a DMRS signal-to-noise ratio (SNR). The UE may perform, based at least in part on the DMRS SNR, channel estimation for a physical channel associated with a communication to determine an estimated channel. The UE may perform, based at least in part on the estimated channel, demodulation processing for the communication. Numerous other aspects are described.

公开(公告)号：US20230337230A1

公开(公告)日：2023-10-19

申请号：US18114000

申请日：2023-02-24

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Tingfang Ji ,  Brian Clarke Banister ,  Wanshi Chen ,  Joseph Binamira Soriaga ,  Huilin Xu ,  John Edward Smee ,  Heechoon Lee ,  Hari Sankar

IPC: H04W72/1273 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W72/1273 ,  H04L5/0094 ,  H04W72/0453 ,  H04W72/0446 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A base station may implement cross-carrier scheduling. A user equipment (UE) may identify a minimum scheduling delay and may receive a downlink grant on a first CC. The UE may further identify the slot in which a downlink data transmission corresponding to the downlink grant will be received, and may identify the slot such that the minimum scheduling delay is satisfied. The UE may the receive the downlink data transmission, as indicated in the downlink grant, in the identified slot. In some examples, the UE and the base station may alternate between a long minimum scheduling delay and a short minimum scheduling delay. In some examples, the UE and the base station may alternate between a cross-carrier mode, and a self-scheduling mode.

公开(公告)号：US11777675B2

公开(公告)日：2023-10-03

申请号：US16641639

申请日：2017-09-07

Applicant: Qualcomm Incorporated

Inventor： Yu Zhang ,  Wanshi Chen ,  Chao Wei ,  Peter Gaal ,  Timo Ville Vintola ,  Vishal Mahajan ,  Alexei Yurievitch Gorokhov ,  Amir Aminzadeh Gohari ,  Alexandros Manolakos ,  Joseph Binamira Soriaga ,  Valentin Alexandru Gheorghiu

IPC: H04L5/00 ,  H04B7/0413

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04L5/001

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a UE capability message, the UE capability message indicating a supported transmit antenna switching (TxAS) capability for each port of the UE. The UE may receive a configuration message indicating an uplink multiple-input/multiple-output (UL MIMO) configuration for the UE, the UL MIMO configuration being based at least in part on the UE capability message. The UE may identify, based at least in part on the configuration message, a sounding reference signal (SRS) configuration to use for transmitting SRSs in conjunction with the UL MIMO communications, the SRS configuration comprising a configuration for transmission by the UE of SRSs using at least one of the two or more ports of the UE, the SRSs transmitted on one or more antennas of the UE selected according to a TxAS configuration for the respective port.

公开(公告)号：US11758547B2

公开(公告)日：2023-09-12

申请号：US17028714

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Ruhua He ,  Raghu Narayan Challa ,  Yong Li ,  Parisa Cheraghi ,  Peter Gaal ,  Juan Montojo ,  Alexandros Manolakos ,  Alexei Yurievitch Gorokhov

IPC: H04W72/23 ,  H04W48/12 ,  H04W76/27 ,  H04L5/00

CPC classification number: H04W72/23 ,  H04L5/0053 ,  H04W48/12 ,  H04W76/27

Abstract: A UE determines a default beam for a physical downlink shared channel (PDSCH) that is independent of a beam for a physical downlink control channel (PDCCH). The default PDSCH beam may be determined based on information received in a medium access control-control element (MAC-CE), or a radio resource control (RRC) message, a downlink control information (DCI). The default PDSCH beam may be determined based on at least one active transmission configuration indication (TCI) state for the PDSCH.

公开(公告)号：US11743966B2

公开(公告)日：2023-08-29

申请号：US16940177

申请日：2020-07-27

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Arvind Vardarajan Santhanam ,  Alexei Yurievitch Gorokhov

IPC: H04W76/28 ,  H04W76/27 ,  H04B1/00 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/0453 ,  H04W74/08 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W76/28 ,  H04B1/005 ,  H04L1/1812 ,  H04L5/0048 ,  H04W72/0453 ,  H04W72/21 ,  H04W72/23 ,  H04W74/0833 ,  H04W76/27

Abstract: Disclosed are techniques for enabling a user equipment (UE) operating in carrier aggregation mode to use different connected mode discontinuous reception (CDRX) configurations for different sets of component carriers associated with different sets of numerologies. For example, in Frequency 1 (FR1) plus Frequency 2 (FR2) carrier aggregation (i.e., one or more FR1 component carriers and one or more FR2 component carriers), a different CDRX can be configured for FR1 than for FR2. In inter-band carrier aggregation (i.e., one or more component carriers in one frequency band and one or more component carriers in another frequency band), CDRX can be configured per band. For mixed numerologies carrier aggregation (i.e., one or more component carriers with a first numerology and one or more component carriers with a different numerology), CDRX can be configured per cell group, where each cell group contains a single numerology or mixed numerologies.

公开(公告)号：US11728863B2

公开(公告)日：2023-08-15

申请号：US17826865

申请日：2022-05-27

Applicant: QUALCOMM Incorporated

Inventor： Arash Ebadi Shahrivar ,  Peter Pui Lok Ang ,  Brian Clarke Banister ,  Yung-Yih Jian ,  Jianming Zhu ,  Raghu Narayan Challa ,  Alexei Yurievitch Gorokhov ,  Aamod Khandekar ,  Ruhua He

IPC: H04L5/12 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0623 ,  H04B7/0608 ,  H04B7/0632 ,  H04B7/0802

Abstract: Methods, systems, and devices for wireless communications are described that provide for antenna selection at a user equipment (UE). The UE may have a set of available antennas for uplink and downlink communications, and may select a first subset of antennas for uplink communications and a second subset of antennas for downlink communications. The first subset of antennas may be based on one or more uplink metrics, and the second subset of antennas may be based on the first subset of antennas and one or more downlink channel metrics, traffic amounts, or any combinations thereof.

公开(公告)号：US20230232413A1

公开(公告)日：2023-07-20

申请号：US18160800

申请日：2023-04-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/23 ,  H04L5/00 ,  H04W28/06 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263

CPC classification number: H04W72/23 ,  H04L5/0053 ,  H04W28/06 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263 ,  H04L5/0096 ,  H04L5/0098

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.