公开(公告)号：US11764854B2

公开(公告)日：2023-09-19

申请号：US16949986

申请日：2020-11-23

Applicant: QUALCOMM INCORPORATED

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

IPC: H04B7/08 ,  H04W16/28 ,  H04W76/19 ,  H04B7/06 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04B7/088 ,  H04B7/0626 ,  H04L5/0051 ,  H04W16/28 ,  H04W74/0833 ,  H04W76/19

Abstract: Wireless communications systems and methods related to coordinated beam refinement and coordinated beam failure recovery (BFR) in a wireless communication network are provided. A first wireless communication device communicates, with a second wireless communication device of a group of wireless communication devices, a communication signal using a first beam characteristic. The first wireless communication device receives, from the second wireless communication device, at least one of beam feedback information or a beam change request. The first wireless communication device transmits, to the group of wireless communication devices in response to the at least one of the beam feedback information or the beam change request, a beam configuration indicating a second beam characteristic to be used by the group of wireless communication devices for communicating with the first wireless communication device, the second beam characteristic being different from the first beam characteristic.

公开(公告)号：US11736180B2

公开(公告)日：2023-08-22

申请号：US17141516

申请日：2021-01-05

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Raghu Narayan Challa ,  Ruhua He ,  Mihir Vijay Laghate ,  Juergen Cezanne ,  Junyi Li

IPC: H04W4/00 ,  H04B7/08 ,  H04B7/06 ,  H04L25/02 ,  H04B17/318 ,  H04W8/24

CPC classification number: H04B7/086 ,  H04B7/0617 ,  H04B7/0626 ,  H04B17/318 ,  H04L25/021 ,  H04W8/24

Abstract: Aspects of the disclosure relate to devices, systems and methods for multi-beam formation. A user equipment (UE) may determine a sampling interval for references signals to be transmitted by a base station for an upcoming control or data communication. For example, the UE may determine a maximum sampling interval tolerable for channel estimation and select the sampling interval based on the maximum. In some examples, the UE determines the sampling interval based on characteristics of its motion. The UE transmits an indication of the sampling interval to the base station. Based on the indication, the base station selects an interval for the reference signals and transmits the reference signals to the UE to enable it to perform the channel estimation for the multi-beam. The base station may determine to select the interval for the reference signals such that it is less than or equal to the sampling interval indicated by the UE.

公开(公告)号：US11729789B2

公开(公告)日：2023-08-15

申请号：US17367214

申请日：2021-07-02

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Mohammad Ali Tassoudji ,  Yu-Chin Ou ,  Kobi Ravid ,  Ozge Koymen ,  Junyi Li

IPC: H04W72/23 ,  H04B7/08 ,  H04W72/0453 ,  H04W72/044

CPC classification number: H04W72/23 ,  H04B7/086 ,  H04W72/046 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described that support beam correlation across frequency bands for beam selection in the event of a frequency switch. For example, a base station may determine a configuration indicating a mapping between a set of beam identifiers (IDs) and a set of angle coverage ranges for a set of frequency ranges which corresponds to a user equipment's (UE) operating frequencies. In some examples, the UE may undergo a frequency switch and switch from a first operating frequency to a second operating frequency. The UE may select a beam ID based on the mapping and communicate with the base station via the second operating frequency using a beam associated with the selected beam ID.

公开(公告)号：US20230254837A1

公开(公告)日：2023-08-10

申请号：US17666062

申请日：2022-02-07

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Junyi Li ,  Jung Ho Ryu

IPC: H04W72/04 ,  H04B7/06

CPC classification number: H04W72/046 ,  H04B7/0695 ,  H04B7/0632

Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a first device may calculate hybrid beamforming parameters for a second device. The first device may calculate the hybrid beamforming parameters based on an estimation of channel information associated with at least a portion of a communication link at the second device via a machine learning model. Inputs to the machine learning model may include measured model parameters based on measurements performed by one or more other devices. The first device may transmit a message to the second device to indicate the hybrid beamforming parameters, which may include an input for a beam refinement process. The second device may perform the beam refinement process based on the hybrid beamforming parameters to identify one or more beams. The first and second devices may communicate using the one or more beams based on the beam refinement process.

公开(公告)号：US11716126B2

公开(公告)日：2023-08-01

申请号：US17576855

申请日：2022-01-14

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Marco Papaleo ,  Junyi Li

IPC: H04W4/00 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/044 ,  H04B17/336 ,  H04W24/10 ,  H04B17/318 ,  H04W72/0453

CPC classification number: H04B7/0456 ,  H04B7/0617 ,  H04B17/318 ,  H04B17/336 ,  H04W24/10 ,  H04W72/046 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving a transmission parameter of a second wireless network, scanning, based on the transmission parameter, for transmission activity of the second wireless network using a set of beams generated in accordance with a beamforming codebook, and opportunistically communicating with a second wireless device of the first wireless network using the beamforming codebook based on the scanning.

公开(公告)号：US11696312B2

公开(公告)日：2023-07-04

申请号：US17102523

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Sony Akkarakaran ,  Juergen Cezanne

IPC: H04W72/51 ,  H04L5/00 ,  H04W64/00 ,  H04W72/044

CPC classification number: H04W72/51 ,  H04L5/0048 ,  H04W64/006 ,  H04W72/044

Abstract: Techniques are provided for enabling user equipment (UE) positioning based on angle estimation in millimeter wave (mmW) bands. An example method for determining a location of a mobile device includes transmitting array gain information to a network entity, the array gain information including beam pattern information based at least in part on a sub-band and a state of the mobile device, receiving one or more reference signals in one or more sub-bands, wherein a receive beam for each of the one or more reference signals is based at least in part on the sub-band the one or more reference signals are being received in, and on a current state of the mobile device, determining measurement values based on the one or more reference signals, and determining the location of the mobile device based at least in part on the measurement values.

公开(公告)号：US11683757B2

公开(公告)日：2023-06-20

申请号：US17302737

申请日：2021-05-11

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Tao Luo ,  Junyi Li

IPC: H04W52/02 ,  H04B17/12 ,  H04W76/28 ,  H04W24/10

CPC classification number: H04W52/0229 ,  H04B17/12 ,  H04W24/10 ,  H04W76/28

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may monitor a wake-up signal (WUS) occasion based at least in part on a discontinuous reception cycle activation duration timer; and receive a reference signal (RS) during the WUS occasion, wherein the RS is to facilitate a UE-assisted calibration of at least one antenna element on at least one panel associated with a base station or a base station-assisted calibration of at least one antenna element on at least one panel associated with the UE. Numerous other aspects are provided.

公开(公告)号：US11678215B2

公开(公告)日：2023-06-13

申请号：US16503996

申请日：2019-07-05

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Juergen Cezanne ,  Junyi Li ,  Wooseok Nam ,  Tao Luo

IPC: H04W28/02 ,  H04W24/08 ,  H04W76/28 ,  H04W24/10

CPC classification number: H04W28/0268 ,  H04W24/08 ,  H04W24/10 ,  H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. One method may include a UE determining a priority of a UE quality of service over UE thermal efficiency constraints, generating a priority indicator based at least in part on the determined UE quality of service priority, and transmitting to a base station via physical layer signaling, the priority indicator. Another method may include a UE determining a priority of a UE quality of service over UE energy constraints, generating a priority indicator based at least in part on the determined UE quality of service priority, and transmitting to a base station via physical layer signaling, the priority indicator. Yet another method may include a base station receiving a UE priority indicator specifying a UE quality of service priority over thermal efficiency constraints and temporarily prioritizing the UE QoS over UE thermal efficiency constraints based on the received priority indicator.

公开(公告)号：US11671847B2

公开(公告)日：2023-06-06

申请号：US17135360

申请日：2020-12-28

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Tao Luo ,  Junyi Li

IPC: H04B7/0413 ,  H04W16/28

CPC classification number: H04W16/28 ,  H04B7/0413

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may receive, from a second wireless communication device, beam type information associated with at least one beam used by the second wireless communication device for a hierarchical beamforming process, wherein the beam type information includes an indication of a number of beam types used in the hierarchical beamforming process and an indication of a number of beams of each of the beam types used in the hierarchical beamforming process. The first wireless communication device may perform a wireless communication action based at least in part on the beam type information. Numerous other aspects are described.

公开(公告)号：US20230147917A1

公开(公告)日：2023-05-11

申请号：US17453737

申请日：2021-11-05

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Junyi Li ,  Tao Luo

IPC: H04B7/0417 ,  H04B7/0426 ,  H01Q3/28 ,  H04B17/10

CPC classification number: H04B7/0417 ,  H04B7/043 ,  H01Q3/28 ,  H04B17/104

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a blockage condition associated with at least one antenna element of a plurality of antenna elements. The UE may deactivate a set of antenna elements of the plurality of antenna elements based at least in part on the determination of the blockage condition, wherein the set of antenna elements includes the at least one antenna element. The UE may transmit, based at least in part on deactivating the set of antenna elements, an indication of a beam correspondence state. The UE may communicate using an activated set of antenna elements of the plurality of antenna elements. Numerous other aspects are described.