公开(公告)号：US12256276B2

公开(公告)日：2025-03-18

申请号：US16879288

申请日：2020-05-20

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Ruhua He ,  Raghu Narayan Challa

IPC: H04W36/00 ,  H04W24/08 ,  H04W56/00

Abstract: Certain aspects of the present disclosure provide techniques for receive beam switching for neighbor cell measurement. A method that may be performed by a user equipment (UE) includes determining a first receive beam of a plurality of receive beams to use for reception during a first synchronization signal block (SSB) duration within a synchronization signal block set (SSBS) duration. The method includes determining a second receive beam of the plurality of receive beams to use for reception during a second SSB duration within the SSBS duration. The UE may measure one or more first signals transmitted by a serving cell and/or one or more neighbor cells with the first receive beam during the first SSB duration and measure one or more second signals transmitted by the serving cell and/or the one or more neighbor cells with the second receive beam during the second SSB duration.

公开(公告)号：US12213018B2

公开(公告)日：2025-01-28

申请号：US17708708

申请日：2022-03-30

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Mihir Vijay Laghate ,  Raghu Narayan Challa

IPC: H04W36/32 ,  H04W16/28 ,  H04W36/00

Abstract: Methods, systems, and devices for wireless communications are described. A network entity may transmit a reference signal to a user equipment (UE). The UE may measure, during a first time period and according to a first periodicity, the reference signal using a first beam associated with cell search. The UE may determine that a movement of the UE satisfies a movement threshold value based on an indication from a motion sensor. Additionally, the UE may determine that a channel metric fails to satisfy a threshold. In response, the UE may measure, during a second time period, the reference signal using the first beam according to a second periodicity that is greater than the first periodicity and corresponds to a more frequent measurement of the reference signal using the first beam than the first periodicity.

公开(公告)号：US12192812B2

公开(公告)日：2025-01-07

申请号：US17517323

申请日：2021-11-02

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Mihir Vijay Laghate ,  Raghu Narayan Challa

IPC: H04W24/10 ,  H04B7/0456 ,  H04B17/318 ,  H04L5/00 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit or receive a reference signal to or from a base station using a beam pair including a first beam associated with a first polarization and a second beam associated with a second polarization. The UE may select the first beam from a first set of beams associated with the first polarization and may independently select the second beam from a second set of beams associated with the second polarization. In some examples, the UE may select the first beam and the second beam based on the first beam and the second beam each having a greatest beam strength (at the UE or the base station) relative to a remainder of the first set of beams and the second set of beams, respectively.

公开(公告)号：US12149996B2

公开(公告)日：2024-11-19

申请号：US17648083

申请日：2022-01-14

Applicant: QUALCOMM Incorporated

Inventor： Yongle Wu ,  Alexei Yurievitch Gorokhov ,  Raghu Narayan Challa

IPC: H04B17/20 ,  H04B17/318 ,  H04W24/08 ,  H04W24/10 ,  H04W36/00 ,  H04W72/0446 ,  H04W72/1263 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08 ,  H04W92/02 ,  H04W92/10

Abstract: Certain aspects of the present disclosure provide techniques for cell measurement scheduling mode selection. According to certain aspects, a method for wireless communications by a user equipment (UE), generally includes selecting a first scheduling mode for performing cell measurements while the UE is in an idle state, in response to detecting at least one first triggering condition based on a comparison of a serving cell measurement to one or more neighbor cell measurements and performing cell measurements in accordance with the first scheduling mode, wherein the UE performs cell measurement more frequently when the first scheduling mode is selected than when a second scheduling mode is selected.

公开(公告)号：US12068829B2

公开(公告)日：2024-08-20

申请号：US17949044

申请日：2022-09-20

Applicant: QUALCOMM Incorporated

Inventor： Arash Ebadi Shahrivar ,  Peter Pui Lok Ang ,  Chinmay Shankar Vaze ,  Brian Clarke Banister ,  Raghu Narayan Challa ,  Alexei Yurievitch Gorokhov ,  Aamod Khandekar ,  Chun-Hao Hsu ,  Gautham Hariharan ,  Ambarish Tripathi ,  Shailesh Maheshwari ,  Sivaguru Narasareddy

IPC: H04B7/08

CPC classification number: H04B7/08

Abstract: Methods, systems, and devices for wireless communications are described that provide for receive chain selection at a user equipment (UE) with efficient switching between a reduced number of receive chains and an increased number of receive chains for downlink communications based on conditions at the UE. A UE may adaptively adjust the number of active receive chains based on downlink grant activity, channel conditions, network parameters, or any combinations thereof. An estimator block at the UE may determine to adjust the number of receive chains based on a number of downlink grants within one or more time periods. In some cases, grants for an amount of data that exceeds a threshold may be qualified in order to be counted at the estimation block. Further, a transient state may be provided where the UE may maintain a higher number of active receive chains until UE feedback is provided.

公开(公告)号：US11930482B2

公开(公告)日：2024-03-12

申请号：US17445073

申请日：2021-08-13

Applicant: QUALCOMM Incorporated

Inventor： Francis Ming-Meng Ngai ,  Arnaud Meylan ,  Suli Zhao ,  Liangchi Hsu ,  Cheol Hee Park ,  Qingxin Chen ,  Jun Hu ,  Leena Zacharias ,  Pulkit Hanswal ,  Reza Shahidi ,  Thawatt Gopal ,  Raghu Narayan Challa ,  Heechoon Lee

IPC: H04W72/00 ,  H04W72/0453 ,  H04W72/56 ,  H04W76/15 ,  H04W88/06

CPC classification number: H04W72/0453 ,  H04W72/56 ,  H04W76/15 ,  H04W88/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a multi-subscriber identity module (SIM) user equipment (UE) may communicate, using a first SIM, on a plurality of component carriers. The multi-SIM UE may select a first subset of component carriers from the plurality of component carriers based at least in part on a component carrier prioritization. The multi-SIM UE may identify an amount of memory available to a second SIM. The multi-SIM UE may tune away, based at least in part on the amount of memory available to the second SIM, from a second subset of component carriers The first subset of component carriers may be different from the second subset of component carriers. Numerous other aspects are described.

公开(公告)号：US11924819B2

公开(公告)日：2024-03-05

申请号：US15930196

申请日：2020-05-12

Applicant: QUALCOMM Incorporated

Inventor： Mingming Cai ,  Junsheng Han ,  Raghu Narayan Challa ,  Tienyow Liu ,  Jing Lin ,  Jagadish Nadakuduti ,  Lin Lu ,  Farhad Meshkati

IPC: H04W72/044 ,  H04W52/36 ,  H04W72/21 ,  H04W72/56

CPC classification number: H04W72/0473 ,  H04W52/367 ,  H04W72/21 ,  H04W72/56

Abstract: Methods and systems for determining transmission power levels according to signal types and RF exposure limits. An example method generally includes determining a first transmission power for transmitting a first type of uplink (UL) signal, determining a second transmission power for transmitting a second type of UL signal based on the first transmission power, and transmitting at least one of the first UL signal according to the first transmission power or the second UL signal according to the second transmission power.

公开(公告)号：US20240048221A1

公开(公告)日：2024-02-08

申请号：US17880439

申请日：2022-08-03

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Ting Kong ,  Mihir Vijay Laghate ,  Rahul Malik ,  Raghu Narayan Challa

IPC: H04B7/08 ,  H04W16/28 ,  H04W72/12

CPC classification number: H04B7/0888 ,  H04W16/28 ,  H04W72/1263

Abstract: Methods, systems, and devices for wireless communications are described. A first device may select a first beam and a second beam from a set of beams for communicating with a second device. The first device may perform a beam refinement procedure of the first beam to generate a first multicast autonomous beam refinement tree. The first device may determine a trigger for performing the beam refinement procedure of the second beam, and the first device may generate a second multicast autonomous beam refinement tree. The first device may communicate with the second device using the second beam.

公开(公告)号：US11849397B2

公开(公告)日：2023-12-19

申请号：US17398924

申请日：2021-08-10

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Kang Yang ,  Raghu Narayan Challa ,  Shrenik Patel

IPC: H04W52/02 ,  H04W72/20

CPC classification number: H04W52/0235 ,  H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. A communications device may transmit, to a second communications, a request to update a phase shifter configuration. The first communications device may receive, from the second communications device and in response to the request, a response accepting the request to update the phase shifter configuration. The first communications device may then transmit, to the second communications device, an uplink transmission in accordance with the updated phase shifter configuration based on receiving the response. The first communications device may include a first user equipment (UE) and the second communications device may include a second UE or a base station.

公开(公告)号：US20230319670A1

公开(公告)日：2023-10-05

申请号：US17708708

申请日：2022-03-30

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Mihir Vijay Laghate ,  Raghu Narayan Challa

IPC: H04W36/32 ,  H04W36/00 ,  H04W16/28

CPC classification number: H04W36/32 ,  H04W16/28 ,  H04W36/00835 ,  H04W36/0058

Abstract: Methods, systems, and devices for wireless communications are described. A network entity may transmit a reference signal to a user equipment (UE). The UE may measure, during a first time period and according to a first periodicity, the reference signal using a first beam associated with cell search. The UE may determine that a movement of the UE satisfies a movement threshold value based on an indication from a motion sensor. Additionally, the UE may determine that a channel metric fails to satisfy a threshold. In response, the UE may measure, during a second time period, the reference signal using the first beam according to a second periodicity that is greater than the first periodicity and corresponds to a more frequent measurement of the reference signal using the first beam than the first periodicity.