公开(公告)号：US20200053575A1

公开(公告)日：2020-02-13

申请号：US16532579

申请日：2019-08-06

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/28 ,  H04W24/02 ,  H04L25/03 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. One method may inlcude a base station or other device estimating an intended coverage area of all possible communication devices that are to be serviced by the base station or other device. The base station or other device may dynamically optimize at least one transmission metric such as a codebook, in response to a change in the coverage area. Another method may include a base station estimating a dynamic coverage area of a set of all possible user equipments or devices to be serviced, and dynamically optimizing a codebook structure in response to a change in the coverage area. Another method may include the base station determining a use-case of the set of all possible user equipments to be serviced by the base station, and hard-coding a metric corresponding to the use case.

公开(公告)号：US12212977B2

公开(公告)日：2025-01-28

申请号：US17402651

申请日：2021-08-16

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/28 ,  H04W56/00

Abstract: Methods and systems for operating a base station to reduce beam squinting include determining a lower bound on the number of directional beams used by the base station for millimeter wave wideband communications (e.g., based on operating conditions of the base station or wireless devices within the coverage area of the base station) and transmitting synchronization signal block (SSB) messages in an SSB Burst Set consistent with the determined lower bound on the number of directional beams used by the base station for millimeter wave wideband communications.

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：US11646506B2

公开(公告)日：2023-05-09

申请号：US17138406

申请日：2020-12-30

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Mohammad Ali Tassoudji ,  Kobi Ravid ,  Robert Douglas ,  Junyi Li

IPC: H01Q21/24 ,  H01Q5/28 ,  H01Q3/38 ,  H04B7/10 ,  H04B7/0413

CPC classification number: H01Q21/245 ,  H01Q3/38 ,  H01Q5/28 ,  H04B7/10 ,  H04B7/0413

Abstract: Aspects described herein relate to receiving, from a device, a first reference signal transmitted using a first set of antenna elements over a first polarization, receiving, from the device, a second reference signal transmitted using a second set of antenna elements over a second polarization, determining, based on the first reference signal and the second reference signal, an inter-polarization phase adjustment to be applied to signals transmitted from the first set of antenna elements or the second set of antenna elements, and transmitting, to the device, an indication of the inter-polarization phase adjustment.

公开(公告)号：US11626908B2

公开(公告)日：2023-04-11

申请号：US17138373

申请日：2020-12-30

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Mohammad Ali Tassoudji ,  Kobi Ravid ,  Robert Douglas ,  Junyi Li

IPC: H04B7/0456 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06

Abstract: Aspects described herein relate to determining a condition related to at least one of a thermal condition at the first device or receiving, at the first device, rate or diversity parameters reported to the first device by a second device, modifying, based on determining the condition, a configuration of a set of antenna elements from at least one antenna panel to use in wireless communication, and communicating with one or more devices using the modified configuration of the set of antenna elements from the at least one antenna panel.

公开(公告)号：US11363469B2

公开(公告)日：2022-06-14

申请号：US16532579

申请日：2019-08-06

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W16/28 ,  H04B7/06 ,  H04L25/03 ,  H04W24/02

Abstract: Methods, systems, and devices for wireless communications are described. One method may inlcude a base station or other device estimating an intended coverage area of all possible communication devices that are to be serviced by the base station or other device. The base station or other device may dynamically optimize at least one transmission metric such as a codebook, in response to a change in the coverage area. Another method may include a base station estimating a dynamic coverage area of a set of all possible user equipments or devices to be serviced, and dynamically optimizing a codebook structure in response to a change in the coverage area. Another method may include the base station determining a use-case of the set of all possible user equipments to be serviced by the base station, and hard-coding a metric corresponding to the use case.

公开(公告)号：US11166239B2

公开(公告)日：2021-11-02

申请号：US16783053

申请日：2020-02-05

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/04 ,  H04W52/24

Abstract: Wireless communications systems and methods related to mitigation of calibration errors are provided. A base station (BS) transmits, via an antenna array including a plurality of antenna elements, a first communication signal using a first number of the plurality of antenna elements and a first transmission power level to a user equipment (UE). The BS receives from at least one UE, a measurement report based on the first communication signal. The BS transmitting a second communication signal using a second number of the plurality of antenna elements and a second transmission power level based on the one or more measurement reports. At least one of the first number of the plurality of antenna elements is different from the second number of the plurality of antenna elements, or the first transmission power level is different from the second transmission power level. Other aspects and features are also claimed and described.

公开(公告)号：US20210159946A1

公开(公告)日：2021-05-27

申请号：US16692916

申请日：2019-11-22

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Mohammad Ali Tassoudji ,  Yu-Chin Ou ,  Kobi Ravid ,  Ozge Koymen ,  Juergen Cezanne ,  Junyi Li ,  Kapil Gulati ,  Jung Ho Ryu ,  Tianyang Bai

IPC: H04B7/0404 ,  H01Q21/24 ,  H04B7/06 ,  H01Q21/06

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a first device and a second device may communicate over a communication link using a set of antenna elements. The first device may identify one or more antenna array reconfiguration trigger conditions and may correspondingly select a first subset of antenna elements for operation. The first device may transmit a message to the second device including an indication of the antenna array reconfiguration at the first device, a request for the second device to modify the second device's antenna array configuration, or both. The second device may receive the message and, based on the indication or the request, may modify its antenna array configuration. For example, the second device may select a second subset of antenna elements based on the selected first subset of antenna elements. The devices may communicate using their modified antenna array configurations.