公开(公告)号：WO2023070015A2

公开(公告)日：2023-04-27

申请号：PCT/US2022/078404

申请日：2022-10-20

Applicant: QUALCOMM INCORPORATED

Inventor： LIN, Jing ,  LIU, Tienyow ,  CHALLA, Raghu Narayan ,  NADAKUDUTI, Jagadish ,  LU, Lin

IPC: H04B7/06 ,  H04W52/42

Abstract: Techniques and apparatus for beam selection in compliance with radio frequency (RF) exposure limits. A method that may be performed by a wireless device includes receiving, from another wireless device, a plurality of signals via a plurality of beams; measuring a received signal power for each of the beams, based on the received plurality of signals; determining a transmit power limit for each of the beams based at least in part on an RF exposure limit; determining an estimation of a signal quality at the other wireless device for each of the beams based at least in part the received signal powers and the transmit power limits; selecting one of the beams based on the estimations of the signal qualities for the beams; and transmitting a signal via the selected beam.

公开(公告)号：WO2022104371A1

公开(公告)日：2022-05-19

申请号：PCT/US2021/072378

申请日：2021-11-12

Applicant: QUALCOMM INCORPORATED

Inventor： LU, Lin ,  NADAKUDUTI, Jagadish ,  GUCKIAN, Paul ,  SHAHIDI, Reza

IPC: H04W52/04 ,  H04W52/14 ,  H04W52/24

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for determining a transmit power based on a pattern and/or future conditions for a transmission while maintaining radio frequency (RF) exposure compliance. An example method generally includes obtaining a pattern associated with one or more first transmissions, determining a transmit power for one or more second transmissions based at least in part on the pattern and an RF exposure limit, and transmitting the one or more second transmissions at the determined transmit power.

公开(公告)号：WO2022104369A1

公开(公告)日：2022-05-19

申请号：PCT/US2021/072375

申请日：2021-11-12

Applicant: QUALCOMM INCORPORATED

Inventor： LU, Lin ,  NADAKUDUTI, Jagadish ,  GUCKIAN, Paul ,  SHAHIDI, Reza

IPC: H04W52/04 ,  H04W52/14 ,  H04W52/22 ,  H04W52/36

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for determining a transmit power based on a pattern and/or future conditions for a transmission while maintaining radio frequency (RF) exposure compliance. An example method generally includes obtaining a pattern associated with one or more first transmissions, determining a transmit power for one or more second transmissions based at least in part on the pattern and an RF exposure limit, and transmitting the one or more second transmissions at the determined transmit power.

公开(公告)号：WO2020113003A2

公开(公告)日：2020-06-04

申请号：PCT/US2019/063610

申请日：2019-11-27

Applicant: QUALCOMM INCORPORATED

Inventor： FERNANDO, Udara ,  LU, Lin

IPC: H04B1/3827 ,  H01Q1/24

Abstract: An apparatus including a housing; sensors configured to sense one or more locations upon which a user is gripping the housing; sensors including antenna modules configured to transmit a signal based on the one or more locations upon which the user is gripping the housing. Another aspect relates to an apparatus including a housing; a set of antenna modules situated proximate at different surface locations along the housing; and a controller configured to operate the set of antenna modules to determine at least one or more electromagnetic leakage coupling between at least one pair of antenna modules of the set. In this aspect, the controller may be configured to select one or more of the set of antenna modules for transmitting a signal based on the one or more electromagnetic leakage coupling associated with one or more of the different locations where a user grips the housing, respectively.

公开(公告)号：WO2023081678A1

公开(公告)日：2023-05-11

申请号：PCT/US2022/079112

申请日：2022-11-02

Applicant: QUALCOMM INCORPORATED

Inventor： NADAKUDUTI, Jagadish ,  LU, Lin ,  GUCKIAN, Paul

IPC: H04W52/36 ,  H04W52/38

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for operating a wireless communication device pursuant to radio frequency (RF) exposure across tissues and/or body locations. An example method of wireless communication by a user equipment generally includes determining a time-averaged RF exposure per exposure scenario or category. The RF exposure for the exposure scenario may be determined for a given antenna or group of antennas, where a grouping of the group of antennas may be specific to the exposure scenario or category. Another example method generally includes tracking sets of RF exposures separately across a plurality of locations associated with a human body over time, and transmitting a first signal at a first transmit power determined based on a time-averaged RF exposure limit and at least one of the tracked RF exposures.

公开(公告)号：WO2022056240A1

公开(公告)日：2022-03-17

申请号：PCT/US2021/049829

申请日：2021-09-10

Applicant: QUALCOMM INCORPORATED

Inventor： LU, Lin ,  NADAKUDUTI, Jagadish ,  DEODHAR, Akhil ,  CURTISS, Troy ,  GUCKIAN, Paul

IPC: H04W52/28 ,  H04W52/36 ,  H04B1/3827

Abstract: Techniques and apparatus for configurable radio frequency (RF) exposure compliance based on region. An example method of wireless communication by a user equipment (UE) generally includes identifying a region in which the UE is located, selecting at least one of a mode or one or more parameters for RF exposure compliance based on the identified region, and transmitting a signal at a transmission power level based at least in part on the at least one of the selected mode or the selected one or more parameters.

公开(公告)号：WO2022016019A1

公开(公告)日：2022-01-20

申请号：PCT/US2021/041901

申请日：2021-07-15

Applicant: QUALCOMM INCORPORATED

Inventor： NADAKUDUTI, Jagadish ,  LU, Lin ,  GUCKIAN, Paul

IPC: H04W52/36 ,  H04B1/3838 ,  H04B17/104 ,  H04W52/367 ,  H04W52/38

Abstract: According to certain aspects a wireless device includes transmitters, and a processor coupled to the transmitters. The processor is configured to determine a radio frequency (RF) exposure value at a peak location based on transmission power levels for the transmitters, determine a contribution of each one of the transmitters to the RF exposure value at the peak location, and reduce the transmission power level for each one of one or more of the transmitters based on the contributions of the transmitters to the RF exposure value at the peak location.

公开(公告)号：WO2016191211A1

公开(公告)日：2016-12-01

申请号：PCT/US2016/033324

申请日：2016-05-19

Applicant: QUALCOMM INCORPORATED

Inventor： GANESH, Shriram ,  FORUTANPOUR, Babak ,  LU, Lin

IPC: H04B1/3827

CPC classification number: H04B1/3838 ,  G06F9/46 ,  H04W4/60

Abstract: Embodiments described herein provide a method for scheduling background processes. The method begins when a task scheduler requests a SAR severity level from the application processor. The application processor then requests the SAR severity level from the modem. Upon receipt of the SAR severity level the task scheduler then determines if the SAR severity level is high. If the SAR severity level is high, the task scheduler waits a predetermined time and then requests a further SAR severity level. This process continues until the SAR severity level returned in within a normal level. At that time, the background process is scheduled. This prioritizes transmission. The apparatus includes a task scheduler in communication with an application processor and a modem in communication with the application processor. The task scheduler may include a memory and a timer.

Abstract translation: 本文描述的实施例提供了一种用于调度后台进程的方法。 当任务调度程序从应用程序处理器请求SAR严重性级别时，该方法开始。 然后应用处理器从调制解调器请求SAR严重性级别。 在收到SAR严重性级别后，任务调度程序将确定SAR严重性级别是否高。 如果SAR严重性级别较高，则任务调度程序等待预定时间，然后再请求SAR严重性级别。 此过程一直持续到SAR严重级别返回到正常级别之内。 那时候，这个后台进程是安排的。 这将优先传输。 该装置包括与应用处理器通信的任务调度器和与应用处理器通信的调制解调器。 任务调度器可以包括存储器和定时器。

公开(公告)号：WO2016099759A1

公开(公告)日：2016-06-23

申请号：PCT/US2015/061168

申请日：2015-11-17

Applicant: QUALCOMM INCORPORATED

Inventor： NADAKUDUTI, Jagadish ,  LU, Lin ,  GUCKIAN, Paul

IPC: H04B17/10 ,  H04B17/26 ,  H04W52/36 ,  H04B1/3827

CPC classification number: H04W52/18 ,  H04B1/3838 ,  H04B17/102 ,  H04W24/02 ,  H04W52/367

Abstract: A method and apparatus for determining transmit power limits for multiple transmitter devices is provided. The method begins when a two-dimensional area scan and a localized three-dimensional volume scan are performed for each transmitter and antenna. These two-dimensional area scans are converted to a three-dimensional full volume data using analytical estimations to determine the peak averaged SAR value, and subsequently determining the error associated with the analytical estimation. The error associated with the analytical estimation is determined by comparison with the measured value. The combined peak averaged SAR may then be determined for simultaneous transmissions of multiple transmitters with varying transmit powers by combining the scaled and analytically determined three-dimensional full volume data for each transmitter. The value is then further scaled by the worst-case conversion error for all active transmitters. This value is compared with the SAR limit and the maximum allowable transmit power determined for the multiple transmitters.

Abstract translation: 提供了一种用于确定多个发射机设备的发射功率限制的方法和装置。 当对每个发射器和天线执行二维区域扫描和局部三维体积扫描时，该方法开始。 使用分析估计将这些二维区域扫描转换为三维全体积数据，以确定峰值平均SAR值，随后确定与分析估计相关的误差。 通过与测量值的比较来确定与分析估计相关的误差。 然后可以通过组合每个发射机的缩放和分析确定的三维全体积数据来确定组合峰值平均SAR，以同时传输具有变化的发射功率的多个发射机。 然后，所有有源发射机的最坏情况转换误差进一步减小该值。 该值与SAR限制和为多个发射机确定的最大允许发射功率进行比较。

公开(公告)号：WO2015095579A1

公开(公告)日：2015-06-25

申请号：PCT/US2014/071249

申请日：2014-12-18

Applicant: QUALCOMM INCORPORATED

Inventor： LU, Lin ,  NADAKUDUTI, Jagadish ,  GUCKIAN, Paul

IPC: B60L11/18 ,  G01R29/08

CPC classification number: G01R29/0878 ,  B60L3/12 ,  B60L11/182 ,  B60L11/1838 ,  B60L2230/10 ,  B60L2260/44 ,  B60L2270/147 ,  G01R29/0814 ,  G01R29/0857 ,  Y02T10/7005 ,  Y02T10/7088 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163

Abstract: This disclosure provides systems, methods and apparatus for assessing electromagnetic exposure. In one aspect an apparatus is provided. The apparatus includes at least a first circuit configured to calculate electromagnetic exposure of at least a portion of at least one human in proximity to a wireless electric vehicle charging system. The portion of the at least one human is modeled by at least one homogeneous phantom model having dielectric properties that are representative of human tissue. The apparatus further includes at least a second circuit configured to scale the calculated electromagnetic exposure to simulate an electromagnetic exposure based on an inhomogeneous anatomical model of the portion of the at least one human.

Abstract translation: 本公开提供了用于评估电磁辐射的系统，方法和装置。 在一个方面，提供一种装置。 该装置至少包括第一电路，其被配置为计算接近无线电动车辆充电系统的至少一个人的至少一部分的电磁辐射。 至少一个人的部分由具有代表人体组织的介电性质的至少一个均匀体模型建模。 该装置还包括至少第二电路，其被配置为基于所述至少一个人的该部分的不均匀解剖模型来缩放所计算的电磁暴露以模拟电磁暴露。