公开(公告)号：US11825387B2

公开(公告)日：2023-11-21

申请号：US17120554

申请日：2020-12-14

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Jung Ho Ryu ,  Junyi Li ,  Tianyang Bai

IPC: H04W4/06 ,  H04L1/00 ,  H04B7/0417 ,  H04B7/06

CPC classification number: H04W4/06 ,  H04B7/0417 ,  H04B7/0617 ,  H04L1/0026

Abstract: Methods, systems, and devices for wireless communications are described. A device in communications with a second device may receive a message from the second device. After receiving, the device selects between a decode-and-forward (DF) or an amplify-and-forward (AF) transmission scheme for forwarding the message to a base station. The selection may be made using one or more trigger conditions associated with the transmitting device, the receiving device, or the base station, such as power availability at the device, processing capability of the device, or beam parameters such as beam width, array gain, or other conditions. After selecting, the device may use the selected transmission scheme for forwarding a packet from the second device to the base station.

公开(公告)号：US11818739B2

公开(公告)日：2023-11-14

申请号：US17224004

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Alexander Dorosenco ,  Tao Luo ,  Robert Douglas ,  Jeremy Darren Dunworth ,  Junyi Li ,  Allen Minh-Triet Tran

IPC: H04W72/541 ,  H04W72/0446 ,  H04L27/26 ,  H04W24/10 ,  H04W72/0453

CPC classification number: H04W72/541 ,  H04L27/26025 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described for self-interference or cross-link interference measurements at a user equipment (UE). A UE may receive configuration information from a base station that indicates one or more slot format index (SFI) values that are compatible for cross-link interference or self-interference measurements. Based on the configured SFI(s), the UE may measure interference in multiple symbols, which may be used to estimate an amount of cross-link interference or self-interference, and the UE may transmit a measurement report to the base station. The base station, based on the measurement report, may identify one or more compatible SFIs, beam pairs, or combinations thereof, for subsequent communications with one or more UEs. The interference measurements may identify cross-link interference at the UE that results from transmissions of a different UE, or may identify self-interference of concurrent communications of multiple channels at a same UE.

公开(公告)号：US11800455B2

公开(公告)日：2023-10-24

申请号：US17398912

申请日：2021-08-10

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Xiaoxia Zhang ,  Srinivas Yerramalli ,  Tao Luo ,  Junyi Li ,  Arumugam Chendamarai Kannan

IPC: H04W52/08 ,  H04L5/00 ,  H04W52/36 ,  H04W52/24 ,  H04W52/14

CPC classification number: H04W52/08 ,  H04L5/0048 ,  H04W52/146 ,  H04W52/242 ,  H04W52/365

Abstract: Aspects presented herein may improve the power control of a communication device in an ultra wide bandwidth beamforming systems. Aspects presented herein may enable the communication device to adjust one or more parameter of a power control loop based the sub-band used within a BWP or based on the channel used within a channelized frequency band. In one aspect, a UE receives at least one power control parameter for transmitting one of a first PUSCH, a first PUCCH, or a first SRS to a base station. The UE transmits the one of the first PUSCH, the first PUCCH, or the first SRS at a first power based on a first sub-band within a BWP.

公开(公告)号：US11784702B2

公开(公告)日：2023-10-10

申请号：US17484049

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Tao Luo ,  Junyi Li

IPC: H04B7/08 ,  H04W72/0453 ,  H04W72/56

CPC classification number: H04B7/088 ,  H04W72/0453 ,  H04W72/56

Abstract: Methods, systems, and devices for wireless communications are described. Devices in a wireless communications system using multiple transmission/reception points (TRPs) may provide information related to one or more default operating frequencies. A user equipment (UE) may receive a message indicating one or more default operating frequencies for each TRP of a set of TRPs. The UE may determine a priority of each TRP of the set of TRPs based on the respective default operating frequencies of the TRPs compared with a default operating frequency of the UE and may indicate the priorities to each TRP. Additionally, based on the default operating frequencies of the TRPs, the UE may select two or more TRPs of the set of TRPs that are suited for joint communications with the UE and may transmit an indication of the selected TRPs. The selected TRPs may coordinate joint communications over an ultra-wide bandwidth with the UE.

公开(公告)号：US20230319760A1

公开(公告)日：2023-10-05

申请号：US17712790

申请日：2022-04-04

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Junyi Li ,  Danlu Zhang

IPC: H04W64/00 ,  H04W16/28 ,  H04B17/318

CPC classification number: H04W64/00 ,  H04B17/318 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently determining a region in which a user equipment (UE) is located. The UE may perform measurements on reference signals received from a first network entity to determine the region in which the UE is located. In some cases, the UE may provide the measurements or other information to a second network entity, and the second network entity may indicate the region in which the UE is located to the UE based on the measurements or the other information. The second network entity or the UE may also indicate the region in which the UE is located to the first network entity. The UE and the first network entity may then select suitable beams for communicating based on the region in which the UE is located.

公开(公告)号：US20230308162A1

公开(公告)日：2023-09-28

申请号：US17701131

申请日：2022-03-22

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Junyi Li

IPC: H04B7/08 ,  H04L25/02

CPC classification number: H04B7/0857 ,  H04B7/0888 ,  H04L25/021 ,  H04L25/0242

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive a control message indicating a set of sampling beams defined for the UE. The UE may measure a set of received signal strengths for communications from a wireless node associated with a set of linear combinations of sampling beams from the set of sampling beams defined at the UE. The UE may calculate a set of entries of a channel covariance matrix based on the set of received signal strengths of the set of linear combinations of the sampling beams from the set of sampling beams defined for the UE. As such, the UE may communicate with the wireless node based on applying a set of beam weights to an antenna array of the UE. In some examples, the set of beam weights may be based on the channel covariance matrix.

公开(公告)号：US11770172B2

公开(公告)日：2023-09-26

申请号：US16365289

申请日：2019-03-26

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Jung Ho Ryu ,  Junyi Li

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/08 ,  H04B7/0408 ,  H04W16/28

CPC classification number: H04B7/0695 ,  H04B7/0408 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/088 ,  H04L5/0082 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communications in millimeter wave (mmW) systems are described. A mmW wireless device may identify a plurality of subsets of antennas from available antennas. The wireless device may compare effective array gain values for each subset in the plurality of subsets of antennas. An effective array gain value may be determined based on a realized array gain for each subset normalized or penalized by a radio frequency (RF) power consumption for antennas corresponding to each subset in the plurality of subsets of antennas. Based on the comparison, the wireless device may select one or more subsets of the plurality of subsets of antennas, the selected one or more subsets may correspond to antenna combinations of one or more antenna subarray units. The mmW wireless device may then communicate using the selected one or more subsets.

公开(公告)号：US11757507B2

公开(公告)日：2023-09-12

申请号：US17691982

申请日：2022-03-10

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Sony Akkarakaran ,  Juergen Cezanne

IPC: H04B7/06 ,  H01Q3/26

CPC classification number: H04B7/0617 ,  H01Q3/2617 ,  H04B7/0634

Abstract: The position of a mobile device is estimated using angle based positioning measurements. The angle based positioning measurements are generated using transmit (Tx) beams or receive (Rx) beams from one or more base stations that generate the beams over an ultra-wide bandwidth, which produces frequency and spatial distortions and impairments in an array gain response. The array gain distribution variation as a function of angle and frequency for the set of beam weights used in beamforming is conveyed to indicate the frequency and spatial distortions. The array gain distribution variation may be provided to the mobile device in assistance data for a sub-band that is only a portion of the allocated bandwidth for the base stations, or as an aggregation of the array gain distribution variation for a plurality of sub-bands of the allocated bandwidth to reduce the overhead in signaling.

公开(公告)号：US11750267B1

公开(公告)日：2023-09-05

申请号：US17701131

申请日：2022-03-22

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Junyi Li

IPC: H04B7/08 ,  H04L25/02

CPC classification number: H04B7/0857 ,  H04B7/0888 ,  H04L25/021 ,  H04L25/0242

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive a control message indicating a set of sampling beams defined for the UE. The UE may measure a set of received signal strengths for communications from a wireless node associated with a set of linear combinations of sampling beams from the set of sampling beams defined at the UE. The UE may calculate a set of entries of a channel covariance matrix based on the set of received signal strengths of the set of linear combinations of the sampling beams from the set of sampling beams defined for the UE. As such, the UE may communicate with the wireless node based on applying a set of beam weights to an antenna array of the UE. In some examples, the set of beam weights may be based on the channel covariance matrix.

公开(公告)号：US11736957B2

公开(公告)日：2023-08-22

申请号：US17339292

申请日：2021-06-04

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Tao Luo ,  Junyi Li

IPC: H04W52/02 ,  H04W72/0446 ,  H04W16/28 ,  H04L5/00

CPC classification number: H04W16/28 ,  H04L5/0048 ,  H04W52/0229 ,  H04W72/0446

Abstract: Techniques for dynamic downlink and uplink quasi co-location (QCL) relationship reporting are disclosed. In an example, a base station may determine to change a QCL reporting state for a user equipment (UE), wherein the QCL reporting state is one of an active QCL reporting state or a restricted QCL reporting state. The base station may also generate an indication to indicate the change in the QCL reporting state to the UE in response to the determining the change in the QCL reporting state. The base station may also transmit, to the UE, the indication in response to the generating the indication.